US1491619A - Elevator door - Google Patents

Description

April 22, 1924.

R.S.PEELLE ELEVATOR DOOR File DB 13. 1922 2 Sheets-Sheet 1 April 22, 1924.

R. S. PEELLE ELEVATOR DOOR 2 Sheets-Sheet 2 Filed D80. 13. 1922 22 .9. H 10. 5mm

Patented Apr. 22, 1924.

nsiran sta r new ROBERT S. PEELLE, F HOLLIS, NEKV YO'R-K, 55., ASSIGNOR TO PEELLE COM- PANY, OFBROOKLYN, NEE YORK, A CGRFG'EATION (1)15 NEW YORK.

nnevaron noon.

Application-filed December 13, 1822. Serial No. 606,722.

To all whom it may concern citizen of the United States, residing at Hollis, in the borough of Queens, city of 5 New York, county ot'Queens, and State of New York, have invented certain new and useful Improvements in Elevator Doors, of which the following is a spec fication,reference being had therein to the accompanying drawings, which form a part thereof.

My invention relates to elevator doors, and

more particularly to an elevator door of the pass type wherein the rail structure and the co-operating guide shoes upon the door sections are'so constructed and arranged as to permit each door section to have a horizontal component of movement away from the wall of the shaft during its vertical opening movement, and towards-the wall of the shaft during its vertical closing movement, no part of the rail structure-having any movement in introducing this horizontal component of movement during the vertical movement of the door sections, andothe guide 5 shoes carried-by the door having no"movenient independently of the door sections carrying same. 7 a v In a door embodying my invention, I employ upon the opposite sidebars of the frame of each section of each door, a pluralitv of guide shoes. one ofthe shoes upon each section moving upona rail section independent of that upon which the'other shoe has inoven'icnt, said rail sections being so con-- structed and arranged as to permit the desired vertical movement of ea'ch doorsection and to impart the; desired horizontal compo nent of movement thereto during a portion.

of this vertical movement, so that a door sec'-.

tion, during its opening movement,may pass,

or lap, a door section at an adjoining door opening, which last named door section is in, the closed positlon. F Each of the sections of Y each door 1n its opening movement must cross the plane of movement of a section of a door at an adjacent door opening, thus hecessitating the presence ofgaps between dir":

terent guide rail sections. suitable guiding or switch mechanisms being providedfor directing the shoes of the'door sections cooperating with the' diflerent rail sections adajacent such gaps.

The guide rail structure adjacent-each door opening in ashaft is like that at the and also witha door section at adjacent door. openings, a portionof this Be it known that I, Bonn-n1 S PnnLLn, a'

rail structure co-operating solely] with the door section atthe opening adjacent thereto,

movement along a guidc rail section entirely independent of the guice rail section for the other shoe on'thesa'me side of said section,

thus precluding the use; o'fthe guide rail sec tionvrfor the lower door section at one door the opening below, which upper section in passing the lower section of the door above must, asto its shoes located adj acentthe lintel of thatdoo'r, movealong its own guide rail section to a point above the sill of the door opening immediately above.

The guiderail section for the shoe adjacent the lower edge of the upper door sec-' tion of a door may, however, co-operate with the lower guide "shoe of the lower door'section of the door immediately. above.

Hence, it will be observed that the'guide rail sectionsadjacent each dooropening are so constructed and arranged as to co-operate with the doors at that opening as well as the door sections at the openings above and below same, one section init's use being .re-

while other portions co-operate solely with V a door section at an adjacent door opening, a

opening for the upper section of the door at strictedto coeopera'te with; one door section V at the opening with which it is associated and with the-other doorsection at that open ed 'in its use to co-op'erate with a door section at an adj acent. opening ;v while still another section co-operates with a door section at the opening adj scent-which it is located an adjacent opening. 7 V

In an elevator door embodyingmy invention, the arrangement of the guide rail sections and of the shoes cooperating-therewith carried by one door section, is such that at least one shoe of each door section is constantly engaged with a continuousguide rail,

and" in its movementis-not required to cross any gaps,while the other shoe upon that section is so.-constructed-that while it must cross gap, some portion thereof while crossing such gap willbe engaged with a guide rail or a switch mechanism atgeach end of the ing and alsowith adoor section at an adja- 1 cent opening; another section being restr ctand somegpart of the guiding means of the guide rail structure.

The construction and arrangement of parts of a door embodying my invention is such that there is no relativemovement of any of the parts of the guide rail structure, and

, the co-operating guide shoes, excepting the sliding movement of the latter with their door sections, thus eliminating substantially all noise beyond that incidental to any -elevator door employing vertically and oppositely, movable sections; minimizing likelihood of a-loss of adjustment of parts such as may occur by the jamming of movable parts, when such are used; and freduc'ing'the i amount of attention required to keep a door installation in operating condition to a mere occasional greasing of the rails and oiling of il l) 'moy'ementfthereto during "portionbf such vertical movement, a e v top of 'the'lowergand adgacent the 'b'ottom' of the pulleys or sheaves, such as-is commonly required with'all elevator doors.

The rail structure throughout may be readily assembled :in the shop, all of the parts being standardized.

A door embodying 'my invention lends self readily to those structural characteristics which permitthe stoppage of the lower door section with its reinforced top bar substantially flush with; the sill 'of the door opening, or to the so called truckablefeaturc.

While primarily the door'is designed for use in elevator shafts in whichjthe distances between'the lintel of one door opening and the sill of the door'opening ii'nmediately above is insufiicient to accommodate the upper door section in this'space, it, neverthe less. is apparent that'this structure may be readily applied to any shaft'irrespective of the spacing of the door openings, and thus avoid the necessity of giving any particular attention to the requirements of the elevator door installation when'planning the door openings'in a shaft. At the same time a construction embodying my'invention will obviate those ditficulties arising from varying distances between the lintels andsills of different door openings, a characteristic. however, which is common to alldoors of the pass type. v

My invention consists primarily in "anelevator door embodying therein upper and lower oppositely movabledoor sections a rail structure on each side" of the openings in an elevator 'shaft including 'therein a railsection terminating adj ac'ent-" the sill Y and lintel of each door opening; adapted to 'per-' "mit vertical movement of said do'orsections and i'm'p'art a horizontal component of s oe' adjacent" the the upper, door section co-operating therewith, a second guide shoe adjacent the top of said upper, and the bottom of said lower, door section, a rail section extending from adjacent the sill of one, to adjacent the lintel of an adjacent, door opening, and cooperating with the second guide shoe on one door section to permit vertical movement of said door section, and to impart a horizontal component of movement thereto during a portion of such vertical movement. a switch mechanism co-operating with the second shoe on the other door section. and a guide rail section extending from adjacent said switch mechanism to a point intermediate the sill and lintel of the adjacent door opening and positionedinwardly of the shaft with relation to said other rail section; and

in such other novel features of construction and oombinationof parts, as are hereinafter set forth and described, and more pa'rticu- 'larly' pointed out in the claims hereto ap pended;

Referring to the drawings,

7 Fig. 1 is a condensed view in elevation from within an elevator shaft, showing an elevator door structure embodying my 'invention;

Fig. 2 is a view of the rail structure at one side of the door opening, with a door structure consisting of two oppositely movable sections shown therein in dotted lines;

Fig. 3 is a front view of a casting form ing a part oi? the rail structure and switch mechanism;

Fig. 4 is aside view thereof:

Fig 5 is a front view of the guide shoe carried by a door section and co-operating with the switch mechanism, and a guiding rail section associated with said switch 1 mechanism; 7

Fig. 6 is a side view thereof;

Fig. 7 is a front view of the guide shoe carried by one of the door sections;

8 is a side view thereof; and

Figs. 9and 10 are respectively side and front Views of a shoe carried by each of the door sections adjacent the top and the bottom bar of the door frames respectively.

'Like letters refer to like parts throughout the several views.

y In the embodiment of my invention shown in the drawings, A indicates that wall of an At B I have In'the drawings, I have shown a portion of the rail structure ad acent one door openmg only, it being understood that this structure 'extends vertically throughout the shaft, "the" part thereof 'ad'jacent'each opening be- IOU sary only where the space between floors is insufficient to receive the door or door sect-ion closing the openings at an adjacent floor.

Fireproof freightelevator doorsare usually formed of two sections indicated at E and F in the drawings, so connected as to cause said sections to move vertically in opposite directions when opening or closing the door, the connection between the door sections, shown at G in the drawings, pas ing over a pulley or sheave H, the axis of which is parallel to the wall of the shaft having the door opening therein.

This connection is made upon each side of a door, one end of each connection being secured to a bracket I adjacent the bottom bar of the frame of the upper door section, the other end of said connection being secured to a hanger bar J connected to the lower door section adjacent the top bar of its frame.

This construction of door is old and well known in this art. r

The lower section F is provided with a projecting plate, indicated in dotted lines at K in Fig. 2 of the drawings, which forms a part'of the trucking feature of the door, and the section E is provided with a projecting angular astragal L adapted to 00-.

operate with said bar K inclosing any gap along the meeting line of the two door sections. r

Since the means embodying the rail structure carried by the two door sectionsisthe same upon opposite sides of each dcoropening, in'my further description of theinvention'I will limit myself toan explanation of the details as they exist upon one side of the door openings only, it being understood that this mechanism is duplicated upon the other side. In the drawings, duplicatereference letters are applied to corresponding parts upon opposite sides of the door, it bein understood that'particularly as to the guide shoes and switch mechanism,

the correspond-ingparts upon one side of ture instead of including a continuous main rail, is formed of a sequence of associated units, one ad acent each door opening, which units" overlap-and co-operate in a manner which will more fully appear hereinafter. Each unit may be the duplicate of every other unit so that a descriptionof but one unit will beinecessary. To simplify the'dee scription of this unit, itrnay be considered as consisting of three rail vsections and'a constantly open switch mechanism for directing a shoe moving with a door section from a rail section ad acentone door openpass a closed door" ing to a co-operating rail section at the adja- 1 one flange a of which is secured to the wall i of he shaft adjacent each j amb of each door opening and extends vertically throughout" the shaft, the other fiange'a of this angle extending-inwardly of the shaft, and having secured thereto various rail sections and switch mechanisms. '7 Y 7 One of the rail sections above referred to includes therein a short vertical rail length 25 extending intermediate the sill B and lintel C for a short distance upon opposite sides of the'parting line of theg'two door sections E and F when the door is in the closed position. Thissection-is so positioned as to hold the meeting edges of the door sectionssutficiently close to the wall of the shaft when the door is closed; Q Spaced within'the shaft away:from'said rail length 6 are two rail'lengths 0-d par-' allel therewith, one of which terminates ad jacentthe sill and. the other of which adja-.

to said lengths 0 and respectively by the the lengths 0, (Z, 6- and f is adaptedto cooperate with both door sections E and F at a door opening, the rail length e being also adapted to cooperate with the'lower door section at the adjacent shaft opening.

The upper door section E adjacent the bottom bar of the frame thereof,iis provided with a vuide shoe 9 cooperating with a portion or the rail length 6, the oblique rail length 6 and the raii length 0, while the top of the lower door section F is provided with-a similar guide shoe hadapted to cooperate with the rail lengths b, and-d.

-Theshoe 9 preferably has oppositely disposed flang'es g and g thereon having a 'cent the lintel, the length 6 beingconnected ies space between: same, the opposite ends of said space being dared to reduce the frietion area of the shoe and being so formed as to afford substantially parallel faces 9 and 9* extending substantially vertically, so as to readily co-operate with the vertically extending rail lengths, and parallel oblique faces g and 9 adapted to co-operate with the oblique rail sections respectively. The shoe It is of the same construction and arrangement as the shoe g, having the flanges 72, and 71,2, vertical parallel sections 7L and h, and the spaced oblique sections a and h. The relation of these parts, however, is reversed by reason of the fact that the door section carrying said shoe moves in a direction opposite to that of the section carrying the shoe 9.

A second rail section consisting of a short length 6 adjacent the sill B, a rail length 7' terminating adjacent the lintel of an adjacent door opening, and an oblique connecting rail section 7:: connecting the sections 2' and j, is, with the rail length 0 at the adjoining door opening, adapted to cooperate with the lower door section in guiding it in its vertical movement and imparting a horizontal component of movement thereto during a portion of this vertical movement. The rail length 2' is arranged on substantially the same vertical plane as the rail length 7), while the rail length is on substantially the same vertical plane as the rail lengths c and d, the oblique connecting rail length being substantially parallel with the oblique rail length f.

The lower door section is provided with a guide shoe m preferably consisting of two parallel flanges m and m which are spaced apart a distance substantially corresponding with the width of the guide rail length i jk, the adjacent ends of these flanges lapping each other slightly so as to afford elongated bearing surfaces while permitting oblique clearance between the two flanges sufiicient to permit the passage of the shoe over the oblique connecting rail length 70 without tilting action on the door. The staggered relation of the flanges m and m will ensure a continued engagement of one of these parts with the rail length j until after the other flange as m has en gaged the rail length 0 at an adjacent door opening, or a part of the switch mechanism between these rail lengths, which switch mechanism will be more fully referred to hereinafter.

The third rail section consists of a single rail length a, one end of which terminates adjacent the lintel of one door opening and the other end of which terminates adjacent the end of the rail length (Z at the opening above. This rail section a co-operates solely with the upper door section and extends substantially parallel with the rail lengths (Z and 7' but spaced therefrom inwardly of the shaft to afford clearance for the guide shoes of the lower door section at the door opening above. The use of'the rail section a is necessitated from the fact that the upper door section in its ascent must pass the lower door section of the opening immediately above when said last named door section is in the closed position, and because neither the rail lengths j nor (Z can be utilized for this purpose without the formation of a gap between the rail lengths j and 70 to permit the upper guide shoe on the upper section of a door at an opening below that at which the rail lengths j(Z are located, to pass from the length atone opening to the length d at that opening. Otherwise theupper section of a door at a lower opening would move along the oblique connecting section In, which it is apparent would cause it to collide with the lower door section of the door immediately above it.

lVhen it is desired to provide independent guide rails for the different shoes upon each door section, such a gap is undesirable at the point indicated, particularly as a gap must be provided at a switch mechanis n situated at a point where p the lower door section is having only vertical movement, and the shoe on this section being specially formed to span this gap and not adapted for the making of an oblique turn at, or during, that interval in Which the door is receiving the horizontal component of movement to bring it to a vertical plane which will allow it to move inwardly of the shaft so as to pass by a closed door at another door opening.

While the lower guide shoe 9 of the door section E co-operates with the rail lengths 6, (Z and c of the rail section opposite the door opening, (and not extending materially beyond same) the upper guide shoe 0 upon this door section does not engage the aforesaid rail lengths but co-operates solely with the rail section it and a switch mechanism 9 adjacent the lintel of the door opening. This switch mechanism has the two fold function of engaging said shoe so as to hold the upper portion of the door close to the wall of a shaft when in the closed position, and guiding said shoe during the opening movement of the door in its vertical movement, while imparting the desired horizontal component to such movement to bring the shoe engagement with the rail section a. This switch mechanism must also be so constructed as to permit the passage of the guide shoe m from a rail length d to a rail length 0 during a solely vertical movement, a gap indicated at 9* being provided to permit a shoe 0 upon a door section E to cross the plane of movement of a shoe m upon a door section F at an adjacent floor.

The shoe 0 comprises a flange 0' having a substantially flat surface at 0 which in the operation of the shoe is adapted to engage tion in and a curved surface 0' adapted to engage a guide abutment of the switch mechanism. Spaced away from the flange 0 1s a second flange 0 which extends laterally of the shoe and is provided with a curved surface 0 forming a flaring opening having a cam-like surface atone side thereof, an inclined surface 0' adapted to co-operate with the switch mechanism during the closing tened end 08 the flange 0. p

The switch mechanism includes a guide flange p adapted to be engaged by the sur-' face 0 on the flange 0 anda curved fixed abutment 2) adapted to co-operate with the curved surface 0* on the flange '0, the flange p and abutment p having parallel curved surfaces indicated at and p respectively, the channel between which is directedabove and across the rail length a and into the'gap 5 between said rail length and the lower end of the rail length n. Upon the other side of the gap 9 opposite the upper end of the abutment p, is a second abutment r, having a surface 7" parallel with the rails c and f and a curved surface 0? presented towards the end of the rail length n, and. positioned at one side of and between said rail to the rail length 0 without engaging the rail'n, the abutment 7' or the abutment p, which last named abutment terminates at one side of the gap between the rail lengths c and j and the wall of the shaft. a

To ensure accuracy in the formation'and the arrangement of the ends of the rail lengths o, y and a of the flange p the abutment p and theabutment r, I preferably form these parts in a single casting, thus permitting the standardization of parts,'and very much simplifying the assembling of the structure. 7 V o i The flange a of the wall angle is cut away at a substantially flush withxthe rail lengths 7), e and f so as to form a recess conforming in contour to the angular relation of these parts, thus permitting the hanger bar J and the brackets I to move toward and from the wall of the shaft during'that interval when the guide shoes 9 and-h are passing along L ne rail lengthsb, e and would introduceframe of eachdoor 'se'ction adjacent the flange a of thejwall angle, said fiarneangle being of a'depth to pass across the edgesof the various rail sections and of thetswitch mechanism, and at t a flame angle and toe guard upon'the lower doorsection'F.

Securedgto the flanges a of the wall .angles, adjacent"and below the sill ofxeac'h door opening, are stops it adaptedto be en gaged by the hanger bar. J when the door is y in the fully open position, so'as to hold the reinforced-top of this section substantially flush withthe sill B. movement of the door section, and a 'flatparallel with'the surface 0 on I The operation of the herein described mechanism is 'substantially'as follows When a door is in the closed position, the

of these door sections and hold this 2 between the guide flange 79 of the switch) mechanism andjthe flange a of'thewalh angle, the flattened surface 0 of the flange 0 engaging a straight portion of the flange p while the flat" portion 0 0f the flangeo V will engage said' walla'ngle flange, thus hold" ing the upper portion I of' 'the door s'e ctionf E close to the wall of the shaft and against movementinwardly of the shaft. The flanges m and m of the shoe m will engage o;

sitefaces of the short rail length i, holding the lower portion ofthe door section F close] to the wall of the shaft. In this manner both isectifons ofthe door when lit' -is" closed will Lbearrange d-in the same vertical plane close to the wall of the'shaft A i; a

and present no such cracks or crevices as structure. 7 V

a fire hazard in the door F move in o osite directions one u y w'ard'ly and the other downwardly, said door sections, during a portion of their vertical" movement, having; a horizontal component of movement to an ezttent slightly greater;

thanthethickness-ofthe 'door, soasto perinit them tofpass similar doors at theopen- 7 ings above and below thatjopening closed a by the door being opened.

NVhilethe movement of the twodoor sect-H tions is similar, the means for securing this x movement differwith each section, so that the V movement of each door section will be described, separately, .it being understood,

however, that the movements of'thediflerent Ill j 7 sections occur'atsubstantially the same time. a

Referring to the lower door section F, "as

this section moves downwardly,tl1e parallel faces h jan'd hi on, the shoe h'willlpass" along 7 o the verticallyextending rail length '2) until.

At .8 I have indicated a' flame angleex 7 tending vertically of each side bar of the the lower edge of said shoeapproaches the end surfaces It and h ofsaid shoe will engage the oblique rail length f, the surface k engaging the upper face of, said rail length, and thus impart the desired horizontal component of movement to that portion of the door until said inclined surface passes from the rail length 7, whereupon the surfaces It and it? will engage and pass along the rail length d until the hanger bar J engages the stops it, or until the door is brought to rest with the top thereof substantially flush with the sill D by said stops or other means used in lieu thereof. 7

During the descent of the door section F, the flanges m and m of the shoe at will pass alongopposite sides of the rail'length 71 until the end of the flange m engages the upper face of the oblique rail length It,

whereupon the lower portion of the section" will receive a horizontal component of movement during the continued downward vertical movement, until said flange/m passes from the oblique rail length is to along the side of the rail length j whichwill be re- & ceived between the spaced parallel flanges m and m Since the flange m is positioned below the flange 912?, it will project across the gap 9 and engage one side of the rail length 0 at the door opening below that by which the moving door is closed, being positioned between the rail length 0 and the abutment p so as to prevent movement of the door toward the wall of the shaft. This engagement with said rail length 0 prevents t initial opening movement thereof, the shoe 9 will act in relation to the rail lengths b, e and 0 in exactly the same manner'as the corresponding parts of the shoe h of the lower door section, so that this mode of operation need not be described. 7

With the'upward movement of the door section E, the surfaces o of the flange 0' and 0 of the'flange 0 will slide along the parallel portions of the guide flange p and the wall angle flange 0/ until the curved surface 0 upon the flange 0 engages the curved surface of the abutment p which will impart a horizontal component of movement to said door section E and direct the flanges 0 and 0 to a position, where they will receive between them, the end of the rail section a. The abutment '1' will check any tendency of an excess movement of the shoe 0 inwardly of the shaft and ensure said shoe passing upon the rail length n. Thereafter while the shoe 9 is passing along the rail length 0, the shoe 0 will pass along the rail the oppositeside of the rail eete e;

lengthmthus bringing the door section E,

inwardly of the shaft to the same eXtent'as the door section F, so that the upper door section E will be in a position to pass the lower door section F at the floor immediately above.

Whilethe rail length 4L is located within the shaft to a greater extent than the rail length 0, the difference is merely that sufficient to accommodate the shoe flange 0 and in a door section which is four or six feet in height, this distance, which is but a fractionof an inch, will have no material effect, upon the movements of the door, as theclearance betweenthe shoes and the rails would of necessity be sufficient to peroblique section 70 in imparting the desired horizontal movement to the lower part of the door section F.

When passing the switch mechanism, the upper flange m will pass the abutment vand the end of therail length n before theflange m passes from the guide flange 12 and the abutment p, and the flan e m engaging the rail length d before the angc 772 has passed from engagement with the rail-length c. 7

During the ascent of the door section F, the upper'door sectionE will descend, the shoe 0 passing along the rail length n until the inclined plane face 0 of the guide flange 0. engages the abutment 1" which directs the shoe otowardthe shaft A passing the top of the rail length aand engaging the curved end 19 of the guide flange p substantially simultaneously with the engagement of theicurved surface 0* of the flange 0 with] the curvedsurface p of the abutment p.

As shown in the drawings, the end of the rail n is curved slightly and reduced to an edge to facilitate the engagement and disengagement thereof with the laterally extended flange 0 the ends of the rail lengths j, cand of the guide flange p" also being roundedor reduced to an edge to minimize likelihood of the guide shoes abutting against same and ensuring afree sliding movement between these parts and the shoe co-operating therewith.

It will be observed that the various guide flanges and abutments constituting the normally open switch are not only so constructed and arranged. as to permit this switch mechanism to co-operate either with the guide shoe m of a door section at one door opening, and the guide shoe of a door section at a door immediately below same, but that all of the. cooperating parts of the switch mechanism and the guide shoe occupy a fixed position so as to ensure uniformity in the operation of the doors at all times, and avoid any likelihood of a breakage or disarrangement of parts.

The guide shoe 0 will pass transversely of the gap crossing the. plane oi the rail sections j and c, the lateral deflection of the flange 0* ensuring the'engagement of. the

movements of the shoe 0 and the portion of the door section adjacent thereto during such movements until the other flange 0' has engage abutment p I g The arrangement of parts is such that the various guide shoes are always in such engaging relation with the rail structure as to ensure positive opening and closing movement of both door, sections, and that such movement, by reason of this continued engagement, without the movement or" any parts except a free sliding. movement of the shoe with relation to the parts of the rail structure with the movement of the door itself, will be practically noiseless.

By employing co'-operating curved surfaces upon the abutment p and 13 upon the guide flange 39?, and upon the flanges 0 and 0 upon'the shoe 0, greater ease in the movementof thedoor endless noise is assured, although it is apparent strai ht inclined co-a-cting surfaces upon these parts would secure the same operative 'e'ifect, but

with slight jars during the movement of. the door upon the init1al-engagementor these parts either during their upwardor downward movement;

It is not my intention to limit the invention to the precise details of construction shown in the accompanying drawings, it being apparent that such maybe varied without departing fromthe spirit and scope of the invention; I

Having described the invention, what claim as new and desire to have protects bv Letters Patent, is

l. An elevator door embodying therein upper and lower oppositelymovable door' railistruct c on each'sideo'i openings in an elevator shaftincluding herein a rail sect1on terminating ad acent 16 dapted' to permit vertical movement of said either the rail 11 or the fixed sill and lintel of each coor opening.

door sections,-and impart a horizontal component of movement thereto during a. portion of such vertical movement, a guide shoe adjacent the top of the lower, and adjacent the bottom of the upper, doorsection co-operating therewith, a second guide shoe adjacent the top of said upper, and the bottom of said lower, door section, a rail section extending from adjacent the sill 1 of one, to adjacent the lintelof an ad.- ja-cent, door opening, and co-operating. with the second guide shoeon one door section to permit vertical movement of; said door section, and to impart a horizontal com ponent. movement thereto during, a portion of such vertical movement, a switch mechanismco-operatmg with the second shoeon the other door section, and a guide.

rail section extending from adjacent said switch mechanism to a point intermediate the sill and lintel of. theadjacent door, opening and positioned inwardly of the shaft with relation to said other railsection,

2. Anelevator' door embodying therein upper and lower oppositely movable door sections, a rail structure on each side ofthe openings' in an elevator shaft including therein a rail section including therein a short rail length intermediate the S111 and hntel of a door opemng, long rail lengths lique connecting rail lengths, a guide shoe adjacent the bottomofthe upper, and adjacent the top ofthe lower, door section cooperating therewith, a rail section extending from adjacent the, sill 01" one, toad last named rail section comprising oppo-v sitely disposed staggered parallel flanges, having the ad acent ends'thereot lapped to conform to said last named oblique rail r I 115;

length, a switch T mechanisnrhetween the lintel of one door openingiand thesill of the opening above, second giuide .shoe uponsaid other .door section cooperating- "with said switch mechanism, and a guide rail section extending from 1 adjacent said opening and positioned inwardly of;the shaft with tions. j I H 3. An. elevator door embodyingtherein parallel therewith positioned inwardly of. the shaft with relation thereto, a-nd obswitch*mechanisi n toa point- .interm ediate] the sill and'lintel .oi the ad acentdoor relation to saidiother rail sec? 1 upper and lower oppositely novabledoor. sections, a rail structure on each side of the; openings in an elevator shaft 'including therein a rail section including, there in a short rail length intermediate the sill and lintel of a door opening, long rail lengths parallel therewith positioned inwardly of the shaft with relation thereto, and oblique connecting rail lengths, a guide shoe on one of said sections comprising spaced flanges having parallel faces adapted to co-operate with the parallel rail lengths, and parallel oblique faces adapted to cos operate with the oblique connecting rail length, a switch 1 echanism between the lintel of one door opening and the sill of an adjacent opening, a guide rail section e);- tending from adjacent said switch mechani sm to a point intermediate the sill and lintel of the adjacent door opening and positioned inwardly of the shaft with relation to said first named rail structure, a second guide shoe upon said door section co-operating with said switch mechanism and said last named guide rail section, a guide shoe upon the'other door section cooperating with said first named rail structure, a rail r section extending from adjacent the sill of one, to adjacent the lintel of an adjacent, door opening, adapted to permit vertical movement of the adjacent door section and to impart a horizontal component of movement there-to during a portion of such vertical movement, and a second shoe upon said last named door section co -operating with said last named rail section.

4-. An elevator door embodying therein upper and lower oppositely movable door sections, a rail structure on each side of the openings in an elevator shaft including therein a rail section comprising a short" rail length intermediate the sill and lintel of a door opening, long rail lengths parallel therewith positioned inwardly of the shaft with relation thereto, and oblique connecting rail lengths, a rail section extending from adjacent the sill of one, to adjacent the lintel of an adjacent, door opening, including a short rail length in substantially the same plane as said first named short rail length, a long rail length parallel therewith and in substantially the same plane as said first named long rail lengths, and an oblique connecting rail. length, a switch mechanism between the lintel of one door opening and the sill of the opening above, a guide railsection extending from adjacent said switch mechanism to a point intermediate the sill and lintel of the adjacent door opening and positioned inwardly of the shaft with relation to said other rail sections, guide shoes upon one of said door sections, co-operating respectively with said short rail length, one of said long rail lengths and one of said oblique con necting rail lengths, and with said switch mechanism and said last named guide rail section, a guide shoe upon said other door section comprising spaced flanges having parallel faces adapted to co-operate with said short rail length and the long length parallel therewith, and parallel oblique faces adapted to co-operate with one oblique connecting rail length, and a second guide shoe upon said last named door section, comprising oppositely disposed parallel flanges having the adjacent ends thereof lapped, whereby said shoes are adapted to co-operate with the parallel and the oblique connecting rail lengths extending from ad jacent the sill of one, to adjacent the lintel of another, door opening, and a long rail length at an adjacent door opening.

5. A elevator door embodying therein upper and lower oppositely movable door sections, a rail-structure on each side of the openings in an elevator shaft including therein a rail section comprising a short rail length intermediate the sill and lintel of a door opening, long rail lengths parallel therewith positioned inwardly of the shaft with relation thereto, and oblique connecting rail. lengths, a rail section extending from adjacent the sill of one, to adj acent the lintel of an adjacent, door opening, including a short rail length in sub stantially the same plane as said first named short rail length, a long rail length parallel therewith and in substantially the same plane as said first named long rail lengths, but spaced therefrom to form a gap, and an oblique connecting rail length, a switch mechanism between the lintel of one door opening and the sill of the opening above, comprising means forming a channel, one end of which is directed across said gap, a guide rail section extending from adjacent said end of said channel to a point intermediate the sill and lintel of the adjacent door opening and positioned inwardly of the shaft with relation to said other rail sections, guide shoes upon said door sections each co-operating with the short rail length and with a long rail length and with an oblique connecting rail length of said first named rail section, a guide shoe on one of said door sections co-operating with the rail section extending from adjacent the sill of one door opening to adjacent the lintel of an adjacent door opening and a long rail 'lengthlat an adjacent door opening, and a guide shoe upon the other door section comprising parallel spaced flanges adapted to engage the opposite walls of said channel forming means, and. receive between same the rail length terminating adjacent the end of said channel.

6, An elevator door embodying therein upper and lower oppositely movable door sections, a rail structure on each side of the openings in an elevator shaft including therein a rail section comprising a short rail length intermediate the sill and lintel of a door opening, long rail lengths parallel therewith positioned inwardly of the shaft with relation thereto, and oblique connecting rail lengths, a rail section extending from adjacent the sill of one, to adjacent the lintel of an adjacent, door opening, including a short rail length in substantially the same plane as said first named short rail length, a long rail length parallel therewith and in substantially the same plane as said first named long rail lengths, but spaced therefrom to form a gap, and an oblique connect ing rail length, a switch mechanism between the lintel of one door opening and the sill of the opening above, comprising means forming a channel, one end of which is directed across said gap, a guide rail section extending from adjacent said end of said channel to a point intermediate the sill and lintel of the adjacent door opening and positioned inwardly of the shaft with relation to said other rail sections, guide shoes upon said door sections each co-operating with the short rail length and with a long rail length and with an oblique connecting rail length of said first named rail section, a guide shoe on one or" said door sections co-operating with the rail section extending from adjacent the sill of one door opening to adjacent the lintel of an adjacent door opening and a long rail length at an adjacent door opening, and a guide shoe upon the other door section comprising parallel spaced flanges, one of said flanges being projected laterally of the shoe and having a curved surface forming a flaring opening for the space between said flanges, an inclined surface and a flattened end, and the other of said flanges having a substantially flat surface, and vertically and laterally extending. curved surfaces, whereby said shoe is adapted to engage the opposite walls of said channel forming means, and

receive between same the rail length terminating ad acent the end of said channel.

7. An elevator door embodying therein upper and lower oppositely movable door sections. a rail structure on each side of the openings in an elevator shaft including therein a rail section comprising a short rail length intermediate the silland lintel ofa door openin long rail lengths parallel therewith positioned inwardly of the shaft with relation thereto, and oblique connecting rail lengths, a rail section extending from adjacent the sill of one, to adjacent the lintel of an adjacent, door opening, including a short rail length in substantially the same plane as said first named short rail length, a long rail length parallel therewith and in substantially the same plane as said first named long rail lengths, but spaced therefrom to form a gap, and an oblique connecting rail length, a switch mechanism between the lintel of one door opening and the sill of the opening above, comprising a guide flange adjacent the end of one of the long rail lengths of said first named rail section, and an abutment between the wall of the shaft and said guide flange and spacedtherefrom, said guideflange and said abutment being so formedas to provide a channel therebetween, one end of which is directed and with an oblique connecting rail length of said first named rail section, a guide shoe on one or" said door sections co-operating with the, rail section extending from adjacent the sill of onejdoor opening to adj acent'the lintel of an adjacent door opening and a long rail length at an adjacent dooropening, and a guide shoe upon the other 7 door section comprising parallel spaced flanges, one of said-flanges being projected laterally of the shoe and having a curved surface forming a flaring opening for the space between said flanges, aninclined surface and a flattenedend, and the other of said flanges having a substantially flat surface, and vertically and laterally extending curved surfaces, whereby said shoe is adapted to engage the opposite walls of said channel forming means, and receive between same the rail length terminating adjacent the end of said channel.

8. An elevator door embodying therein upper and lower oppositely movable door sections, a rail structure on each side of the openings in an elevator shaft including therein a rail section comprising a short rail length intermediate the sill and lintel ofa door opening, long rail lengths parallel therewith-positioned inwardly of the shaft with relation thereto, and oblique connecting rail lengths, a rail section extending from adjacent the sill of one, to adjacent the lintel of an adjacent, door opening, including a short rail length 1n substantially the same plane as said first named short rail length, a long rail length parallel therewith and in substantially the same plane as said first named long raillengths, but spaced therefrom to form a gap, and an oblique connecting rail length, a switch mechanism between the lintel of onedoor opening and the sill of the opening above, comprising means forming a channel, one end of which is directed across said gap, a guide rail section extending from adjacentsaid end of said channel to a'point intermediate the sill and lintel of the adjacent door opening and positioned inwardly of the shaft with relation to said other rail sections, guide shoes upon one of said door sections, one or" which co-operates with the short rail length and with a long rail length and with an oblique the short rail length and a long rail length of said first named rail section, and parallel oblique faces adapted to co-operate with an oblique connecting rail length of said rail section, and a guide shoe upon the other door section comprising parallel spaced flanges, one of said flanges being projected laterally of the shoe and having a curved surface forming a flaring opening for the space between said flanges, an inclined surface and a flattened end, and the other of said flanges having a substantially flat, surface, and vertically and laterally extending curved surfaces, whereby said shoe is adapted to engage the opposite walls of said channel forming means, and receive between same the rail length terminating adjacent the end of said channel.

9. An elevator door embodying therein upper and lower oppositely movable door sections, a rail structure on each side of the openings in an elevator shaft including therein a rail section comprising a short rail length intermediate the sill and lintel of a door opening, long rail lengths parallel therewith positioned inwardly of the shaft with relation thereto, and oblique connecting rail lengths, a rail section extending from adjacent the sill of one, to adjacent the lintel of an adjacent, door opening, including a short rail length in substantially the same plane as said first named short rail length, a long rail length parallel therewith and in substantially the same plane as said first named long rail lengths, but spaced therefrom to form a gap, and an oblique connecting rail length, a switch mechanism between the lintel of one door opening and the sill of the opening above, comprising a guide flange adjacent the end of one of the long rail lengths of said first named rail section, an abutment between the wall of the shaft and said guide flange and spaced therefrom, said guide flange and said abutment being so formed as to provide a channel therebetween, one end of which is directed across said gap, and an abutment located substantially opposite the end of said channel be yond, and having a curved surface presented towards, said gap, a guide rail section extending from adjacent said end of said channel to a point intermediate the sill and lintel of the adjacent door opening and positioned inwardly of the shaft with relation to said other rail sections, guide shoes upon said door sections each co-operating with the short rail length and with a long rail length and with an oblique connecting rail length of said first named rail section, a guide shoe ing and a long rail length at an adjacent door opening, and a guide shoe upon the other door section comprising parallel spaced flanges, one of said flanges being projected laterally of the shoe and having a curved surface forming a flaring opening for the space between said flanges, an inclined surface and a flattened end, and the other of said flanges having a substantially flat surface, and vertically and laterally extending curved surfaces, whereby said shoe is adapted to engage the opposite walls of said channel forming means, and receive between same the rail length terminating adjacent the end of said channel.

10. An elevator door embodying therein upper and lower oppositely movable door sections, a rail structure on each side of the openings in an elevator shaft including therein a rail section comprising a short rail length intermediate the sill and lintel of a door opening, long rail lengths parallel therewith positioned inwardly of the shaft with relation thereto, and oblique connecting rail lengths, a rail section extending from adjacent the sill of one, to adjacent the lintel of an adjacent, door opening, including a short rail length in substantially the same plane as said first named short rail length, a long rail length parallel therewith and in substantially the same plane as said first named long rail lengths, but spaced therefrom to form a gap, and an oblique connecting rail length, a switch mechanism between the lintel of one door opening and the sill of the opening above, comprising means forming a channel, one end of which is directed across said gap, a guide rail section extending from adjacent said end of said channel to a point intermediate the sill and lintel of the adjacent door opening and positioned inwardly of the shaft with relation to said other rail sections, guide shoes upon said door sections each co-operating with the short rail length and with a long rail length and with an oblique connecting rail length of said first named rail section, a guide shoe on one of said door sections comprising oppositely disposed staggered parallel flanges having the adjacent ends thereof lapped, whereby the parallel faces thereof are adapted to co-operate with the parallel rail lengths, and the lapped ends are adapted to co-operate with the oblique connecting rail length of the rail section extending from adjacent the sill of one door opening to adjacent the lintel of an adjacent door openflanges adapted to engage the opposite walls of said channel forming means, and receive between same the rail length terminating adjacent the end of said channel.

11. An elevator door embodying therein upper and lower oppositely movable door sections, a rail structure on each side of the openings in an elevator shaft including therein a rail section comprising a short rail length intermediate the sill and lintel of a door opening, long rail lengths parallel therewith positioned inwardly ofthe shaft with relation thereto, and oblique connecting rail lengths, a rail section extending from' adjacent the sill of one, toadjacent the lintel of an adjacent, door opening, including a short rail length in substantially the same plane as said first named short rail length, a long rail'length parallel therewith and in substantially the same plane as said first named long rail lengths, but spaced therefrom to form a gap, and an oblique connecting rail length, a switch mechanism between the lintel of one door opening and the sill of the opening above, comprising means form ing a channel, one end of which is directed across said gap, a guide rail section extending from adjacent said end of said channel to a point intermediate the sill and lintel of the adjacent door opening and positioned inwardly of the shaft with relation to said other rail sections, a guide shoe upon one of said door sections comprising spaced flanges having parallel faces adapted to co-operate with the short rail length and a long rail length of said first named rail section, and parallel oblique faces adapted to co-operate with an oblique connecting rail length of said first named rail section, and a second guide shoe on said door sections comprising oppositely disposed staggered parallel flanges having the adjacent ends thereof lapped, whereby the parallel faces thereof are adapted to co-operate with the parallel rail lengths, and the lapped ends are adapted to cooperate with the oblique connecting rail length of the rail section extending from adjacent the sill of one door opening to ad jacent the lintel of an adjacent door opening and a long rail length at an adjacent door opening, a guide shoe upon the other door section cooperating with the short rail length. a long rail length and an oblique connecting rail length of said firstnanied rail section, and a second uide shoe upon said door section comprising parallel spaced flanges adapted to engage the opposite walls of said channel forming means, and receive between same the rail length terminating adjacent the end of said channel.

12. An elevator door embodying therein upper and lower oppositely movable door sections, a rail structure on each side of the openings in an elevator shaft including therein a rail section comprising a short rail length intermediate the sill and lintel of a door opening, long rail lengths parallel therewith positioned inwardly of the shaft with relation thereto, and oblique connecting rail lengths, a rail section extending from adjacent the-sill of one, to adjacent the lintel of an adjacent, door opening, including a'short rail length in substantially the same:- plane as said first named short rail length, a long rail length parallel therewith and in substantially the same plane as said first named long rail lengths, but spaced therefrom to form a gap, and oblique connecting rail length, a' switch mechanism between the lintel of one door opening and the sill of the opening above, comprising means forming a channel, one end of which is directed across said gap, a guide rail section extending from adjacent said end of said channel to a point intermediate the sill and lintel of toe adjacent door opening and positioned inwardly ofthe shaftwith relation tosaid other rail sections, guide shoes uponsaid I door sections each comprising spaced flanges having parallel faces adapted to co-operate with the short rail length, and with a long parallel rail length, and parallel oblique faces adapted to co-operate with an oblique connecting rail length of said first named rail section, a guide shoe on one of said door sections comprising oppositely disposed staggered parallel flanges having the adjacent ends thereof lapped, whereby the parallel ,faces, thereof are adapted to cooperate with the'parallel rail lengths, and the lapped ends are adapted to co-operate with the oblique connecting rail length of the rail section extending from adjacent the sill of one door opening to adjacent the lintel of an adjacent door opening and a long rail length at an adjacent door opening, and a guide shoe upon the other door section comprising parallel spaced flanges adapted to engage the'opposite walls of said channel formingineans, and receive between some the rail len th terminating adjacent .the end of said channel.

upper lower oppositely movable door sections, a rail structure on each side of the openings in an elevator shaft including therein a rail section comprising a short rail length intermediate the sill and lintel of a door opening, long rail lengths parallel therewithpositioned inwardly of the shaft with relation thereto, and oblique adjacent the lintel of an adjacent, door opening, including a short rail length in substantially the same plane as said first 13. An elevator door embodying therein 3 connecting rail lengths, a rail section ex tending from fi-ClJZLCGllt the sill of one, to

named short rail length, a long rail length parallel therewith and in substantially the same plane as said first named long rail lengths, but spaced therefrom to form a gap, and an oblique connecting rail length, a switch mechanism between the lintel of one door opening and the sill of the opening above, comprising a guide flange adjacent the end of one of the long rail lengths of said first named rail section, and an abutment between the wall of the shaft and said guide flange and spaced therefrom, said guide flange and said abutment being so formed as to provide a channel therebetween, one end of which is directed, across said gap, a guide rail section extending from adjacent said end of said channel to a point intermediate the sill and' lintel of the adjacent door opening and positioned inwardly of tions each comprising spaced flanges hav ing parallel faces adapted to co-operate with the short rail length and with a long parallel rail length, and parallel oblique faces adapted'to co-operate with an oblique connecting rail length of said first named rail section, a second guide shoe on one of said door sections comprising oppositely disposed staggered parallel flanges having the adjacent endsEthereo-f lapped, whereby the parallel faces thereof are adapted to co-operate with the parallel rail length, and the lapped ends are adapted to co-operate with the oblique connecting'rail length of the rail section extending from adjacent the sill of one door opening to adjacent the lintel" of an adjacent door opening, and a long rail length at an adjacent door opening, and a guide shoe upon the other door section com prising parallel spaced flanges, one of said flanges being projected laterally of the shoe and having a curved surface forming a flaring opening for the space between said flanges, an inclined surface and a flattened end, and the other of said flanges having a substantially flat surface,'and vertically and laterally extending curved surfaces; whereby said shoe is adapted to engage the opposite walls of said channel forming means, and receive between same the rail length terminating. adjacent the end of said channel.

14:. An elevator door embodying therein upper and lower oppositely movable door sections, a rail structure on each side of the openings in an elevator shaft including therein a'rail section comprising a short rail length intermediate the sill and lint-e1 of a door opening, long rail lengths parallel therewith positioned inwardly of the shaft with relation thereto, and oblique connecting rail lengths, a rail section extending from adjacent the sill of one, to adjacent the lintel of an adjacent, door ineiacie opening, including a: short rail length in substantially the same plane as said first named short rail length, a long rail length parallel therewith and in substantially the same plane as said first named long rail lengths, but spaced therefrom to form a gap, and an oblique connecting rail length, a switch mechanism between the lintel of one door opening and the sill of the opening above, comprising a guide flange adjacent the end of one of the long rail lengths of said first named rail section, and an abut ment between the'wall of the shaft and said guide flange and spaced therefrom, said guide flange and said abutment being so termed as to provide a channel there between, one end of which is directed across said gap, a guide rail section extending from adjacent said end of said channel to a point intermediate the sill and lintel of the adjacent door opening and positioned inwardly of the shaft with relation to said other rail sections, said abutment, said guide flange and the ends of the various rail lengths adjacent thereto being integrally formed in a metal casting, guide shoes upon said door sections each cooperating with the short rail length and with a long rail length and with an oblique connecting rail length of said first named rail section, a guide shoe on one of said door sections co-operating with the rail section extending from adjacent the sill of one door opening to adjacent the lintel of an adjacent door opening and a long rail length at an adjacent door opening, and a guide shoe upon the other door section comprising parallel spaced flanges, one of said flanges being projected laterally of the shoe and having a curved surface forming a flaring opening for the space between said flanges, an inclined surface and a flattened enchand the other of said flanges having a substantially flat surface, and vertically and laterally extending curved surfaces, whereby said shoe is adapted to engage the opposite walls of said channel forming means, and receive between same the rail length terminating adjacent the end of said channel.

15. An elevator door embodying therein upper and lower oppositely movable door sections, a rail structure on each side of the openings in an elevator shaft. each consisting of a wall angle extending vertically of the shaft and having secured thereto a rail section including therein a short rail length intermediate the sill and lint'el of the door opening, long rail lengths parallel therewith positioned inwardly oi the shaft with relation thereto, and oblique connecting rail lengths, a rail section extending from adjacent the sill of one, to adjacent the lintel of an adjacent, door opening, a switch mechanism, and aguide rail section extending from adjacent said switch mechanism to a point intermediate the sill and lintel of an adjacent door opening and positioned inwardly of the shaft with relation to said other rail section, means carried by each of said door sections projecting across the edges of said wall angle, and across said rail sections and said switch mechanism respectively, flexible connections between said means respectively, sheaves about which said flexible connections pass, the axes of said sheaves being parallel with the wall of the shaft adjacent the door opening, said wall angle adjacent the short and the ob lique rail lengths of said'first named rail section being cut away to permit movement of said means adjacent saidv'rail lengths, guide shoes adjacent the top of the lower, and adjacent the bottom of the upper, door sections co-operating with said first named rail section. a second guide shoe upon one of said sections co-operating with the rail section extending from adjacent the sill of one, to adjacent the lintel of an adjacent, door opening, and a second guide shoe upon the other door section co-operating with said switch mechanism and with the rail section adjacent thereto.

16. An elevator door embodying therein upper and lower. oppositely movable door sections, a rail structure on each side of the openings in an elevator shaft, each consisting of a wall angle extending vertically of the shaft and havingsecured thereto a rail section including therein a short rail length intermediate the sill and lintel of the door opening, long rail lengths parallel therewith positioned inwardly of the shaft with relation thereto, and oblique connecting rail lengths, a rail section extending from adjacent the sill of one, to adjacent the lintel of an adjacent, door opening, a switch mechanism, and a guide rail section extending from adjacent said switch mechanism to a point intermediate the sill and lintel of an adjacent door opening and positioned inwardly of the shaft with relation to said other rail section, means carried by each of said door sections projecting across the edges of said wall angle, and across said rail sec tions and said switch mechanism respectively, flexible connections between said means respectively, sheaves about which said flexible connections pass, the axes of said sheaves being parallel with the wall of the shaft adjacent the door opening, said wall angle ad jacent the short and the oblique rail lengths of said first named rail section being cut away to permit movement of said means adj acent said rail lengths, guide shoes adjacent the top of the lower, and adjacent the bottom of the upper, door sections co-operating with said first named rail section, a second guide shoe upon one of said sections co -operating with the rail section extending from. adjacent the sill of one, to adjacent the lintel of an adjacent, door opening, a second guide shoe upon the other door sectionco-operating with said switch mechanism and with the rail sec tion adjacent thereto, stops carried by said wall angle in the path of movement of the means carried by the lower door section, and a truck bar carried by the top of said lower door section and projecting through the door opening when a door. is closed.

17. An elevator door embodying therein upper and lower oppositely movable door sections, a rail structure on each side of the openings in an elevator shaft, each consisting of a wall angle extending vertically of the shaft and'having secured thereto a rail section including therein a short rail length intermediate the sill and lintel of the door opening, long rail lengths parallel therewith positioned inwardly of the shaft with relation thereto, and oblique connecting rail lengths, a rail section extending from adjacent the sill of one, to adjacent the lintel of an adjacent, door opening, including a short rail length in substantially the same plane as said first named short rail length, a long rail length parallel therewith and in substantially the same. plane assaid first named long rail lengths, but spaced therefrom to form a gap, and an oblique connectingrail length, a switch mechanism between the lintel of one door opening and the sill of the opening above, comprising a guide flange adjacent the end of one of the long rail lengths of said first named railsection, and an abutment be tween the wall of the shaft and'said guide flange and spaced therefrom, said guide flange and said abutment being so formed as toprovide a channel therebetween. one end 7 of which is directed across said gap, a guide rail section extending from adjacent said end of said channel to a point intermediate the sill and lintel of the adjacent door opening and positioned inwardly of the shaft with relation to said other rail sections, means carried by each of said door sections projecting across the edges of said wall angle, and across said rail sections and said switch mechanism respectively, flexible connections between said means respectively, sheaves about which said flexible connections pass, the axes of said sheaves being parallel with the wall of the shaft adjacent the door opening, said wall angle adjacent the short and the oblique rail lengths of said first named rail section being cut away to permitmovement of said means adjacent said rail lengths, guide shoesupon said door sections each comprising spaced flanges having parallel faces adapted to cooperate with the short rail length and with a long parallel rail length, and parallel oblique faces adapted to co-operate with an oblique connecting rail length of said first named rail section, a second guide shoe on one of said door sections comprising oppositely disposed staggered parallel flanges having the adjacent ends thereof lapped, whereby the parallel faces thereof are adapted to co-operate with the parallel rail length, and the lapped ends are adapted to co-operate with the oblique connecting rail length of the rail section extending from adjacent the sill of one door opening to adjacent the lintel of an adjacent door opening, and a long rail length at an adjacent door opening, and a guide shoe upon the other door section comprising parallel spaced flanges, one of said flanges being projected laterally of the shoe and having a curved surface forming a flaring opening for the space between said flanges, an inclined surface and a flattened end, and the other of said flanges having a substantially flat surface, and vertically and laterally extending curved surfaces, whereby said shoe is adapted to engage the opposite walls of said channel forming means, and receive between same the rail length terminating adjacent the end of said channel.

18. Anelevator door embodying therein upper and lower oppositely movable door sections, a rail structure on each side of the openings in an elevator shaft, each consisting of a wall angle extending vertically of the shaft and having secured thereto a rail section including therein a short rail length intermediate the sill and lintel of the door opening, long rail lengths parallel therewith positioned inwardly of the shaft with relation thereto, and oblique connecting rail lengths, a rail section extending from adjacent the sill of one, to adjacent the lintel of an adjacent, door opening, including a short rail length in substantially the same plane as said first named short rail length, a long rail length parallel therewith and in substantially the same plane as said first named long rail lengths, but spaced therefrom to form a gap, and an oblique connecting rail length, a switch mechanism between the lintel of one door opening and the sill of the opening above, comprising a guide flange adjacent the end of one of the long rail lengths of said first named rail section, and an abutment between the vall of the shaft and said guide flange and spaced therefron, said guide flange and said abutment being so formed as to provide a channel therebetween, one end of which is directed across said gap, a guide rail section extending from adjacent said end of said channel to a point intermediate the sill and lintel of the adjacent door open ing and positioned inwardly of the shaft with relation to said other rail sections,

switch mechanism respectively, flexible connections between said means respectively, sheaves about which said flexible connections pass, the axes of said sheaves being parallel with the wall of the shaft adjacent the door opening, said wall angle adjacent the short and the oblique rail lengths of said first named rail section being cut away to permit movement of said means adjacent said rail lengths, guide shoes upon said door sections each comprising spaced flanges having parallel faces adapted to co-operate with the short rail length and with a long parallel rail length, and parallel oblique faces adapted to co-operate with an oblique connecting rail length of said first named rail section, a second guide shoe on one of said door sections comprising oppositely disposed staggered parallel flanges having the adjacent ends thereof lapped, whereby the parallel facesthereof are adapted to cooperate with the parallel rail length, and the lapped ends are adapted to co-operate with the oblique connecting rail length of the rail section extending from adjacent the sill of one door opening to adjacent the lintel of an adjacent door opening. and a long rail length at an adjacent door opening, a guide shoe upon the other door section comprising parallel spaced flanges, one of said flanges being projected laterally of the shoe and having a curved surface forming a flaring opening for the space between said flanges, an inclined surface and a flattened end. and the other of said flanges having a substantially flat surface. and vertically and laterally extending curved surfaces whereby said shoe is adapted to engage the opposite walls of said channel forming means. and receive between same the rail length terminating adjacent the end of said channel. stops carried by said wall angle in the path of movement of the means carried by the lower door section, and a truck bar carried by the top of said lower door section and projecting through the door opening when a door is closed. 7

In witness whereof I have hereunto aflixed my signature, in the presence of two subscribing witnesses, this 6th day of December, 1922.

ROBERT S. PEELLE.

Witnesses FRIEDA KOEHLER, SOPHIE M. BAEDER.

Images