US2492508A - Window operating mechanism - Google Patents

Description

Dec. 27, 1949 M. J. TRACY WINDOW OPERATING MECHANISM 3 Sheets-Sheet 1 Filed Nov. 9, 1945 /Nl/EA/7" 0 MICHAEL J. TRACY Dec. 27, M, TRACY WINDOW OPERATING MECHANISM 5 Sheets-Sheet 2 Filed NOV. 9, 1945 MICHAEL J. TRACY 1366- 1949 M. J. TRACY WINDOW OPERATING MECHANISM 3 Sheets-Sheet 5 Filed NOV. 9, 1945 I MICHAEL J. TRACY 5v W FIG.9.

Patented Dec. 27, 1949 U Nl TED -S TATE S PAT-EN OFF :l -CJ'E "2,492,508

WIND OW OPERATING MECHANISM :Michael J. Tracy, Robertson, "Mo.

Application November 9, 1945, Serial No. 627-,572

9 Claims. 1 This invention relates generally to window "structures, and morespecifically to "window'structures'ofthemultipl-e sash type wherein the sashes "are supported one above the other "with pivot means at the topsofthesashe's and'sashwper- "'ating means "associated with the sashes at "the 'bottoms'thereoffor actuating said sashes "to open and closed positions, the predominant object of the invention'being to'provi'de a'windowstructure of the general type described above which includes improved means "for actuating the sashes "to open and closed positions and for locking said sashes in various open positions to which they areadjusted, and for weather-sealing the sashes :and looking them in'their closed positions.

Fig. 1 is an televational view looking toward :the inside of the improved Window structure.

Fig.2 is a vertical section on an enlarged scale taken on line "2"2 ofFig.1, and with aportion of the structure shown inFig. 1 broken away,

and With the lower sash shown inan openposi- Ltion by dottedlines.

Fig. 3 isan enlarged, fragmentary,horizontal section taken online 3-3 of Fig. 2.

Fig. 4- is a vertical section taken on .line 4T4 of Fig. '3.

Fig. 5 is a sectional-perspective of .the lower portion of oneof .the sashes shown in Fig. 1.

Fig. 6 is a fragmentary, horizontal section taken on .line "6.6 of Fig. 1, with the illustrated window sash shown .by full lines in its closed position and by .dotted lines in an i open .position.

'7 is -a fragmentary, horizontal sectional view showing the operating means of a:sash.of

the improvedstructurelas such means appears made upof .a horizontal head portion 1a, -vertical jamb portions lb, and a horizontal sill por- .t-ion iqsaid Wii'ldOWflfilllG being shown in the drawings as :being constructed of .metal, with the head, jamb, and sin portions of the frame being of .channel -.-shane .in CIQSS' SECtiOH, .as is shown to good advantage in Figs. 2 and 6. The

window frame I 'isi'anchor'ed in place within-the window opening A by an anchoring structure which includes a .lrorizontal top plate '21; and opposed vertical side plates "21), the? latter plates extending downwardly -from the top=plate oi the anchoring structure :to the sill of "the window opening A.

In arranging the window. frame 1| in.p'lace within the window openingA, the window frame is setinplace within said windowopening in the approximate positionin which said window frame '5 is shown in Figs. 2 and I6. The upper portion of the top plat 2a of .the anchoring. structure-is then introduced into .an aperture Y'Ba formed in thewall B at the top of the window opening and the headportion 'Ila .of the window fframeis secured to 'said'topplatejia by means of suitable -fastening devices .3 (Fig.2). In like manner, the outer portions of the vertical side plates "21) of the anchoring structure are 'inserted into apertures'Bb formed in the wall'B'at the sides of the window openings and "the .jamb portions of the window frame are secured to said vertical-side plates 2b by suitable ffasteningdevices-d (Fig. 6).

The top -plate"2a and'the side plates-*lbare sealed within the apertures Ba and Bb'by calking material'5a, as is shownin'Figs. "2 and 6, while a seal "is produced between the lower portion of the lfianges 6 which are spaced slightly with respect .to adjacent faces of the window openingA, and these spaces are sealedby .calking material I, as

is shown in'F-igs.2 and6.

By referring to the upper portion of Fig- 2 it will be .noted that .a .recess '8 is formed in the lower wall of the .headgaortion vla of the window frame i. .The -recess .extendslongitudinally of the bottom wall of the.headsportion Ea of the window frame i .iromend to end thereof and said recess is provided with an inclined inner wall 8. The outer portion of the recess '8.is closed by a plat s thatissecured to the outer wall of the head .portion la of said-window frame I and which extends downwardly some distance below the lower wall of said head portionofsaid window frame .5, said recess being intended for a purpose to be hereinafter'set forth.

The particular windowstructure illustrated in Fig. 1 includes three window sashes 1'0, II, and I2, although, obviously a greater orles'ser number of window sashes may be employed'in producing a window structure in accordance with this invention, if this should be desired. The window sashes l8, Ii, and ii. are pivotally attached at their upper ends to the window frame I so that their lower ends may be moved outwardly relative to said window frame to adjust said window sashes to open positions, as is shown by dotted lines in Fig. 2.

The means for pivotally supporting each of the window sashes it, ii, and i2, with respect to the window frame 1 comprises a pair of opposed hinge elements i3 which extend through openings formed through portions of the outer wall of said window frame and project outwardly beyond the outer face of said outer wall of said window frame, said hinge elements 13 being secured by welding, or otherwise, to the inner face of the outer wall of said window frame, as isv shown in Fig. 6. Related to the pair of hinge elements It associated with the window frame is a pair of opposed hinge members it which are secured by welding, or otherwise, to the frame of the window sash at opposite sides of said window sash. The hinge elements M of each of the window sashes I6, ii, and i2, have outwardly extended portions that are disposed immediately adjacent to the related fixed hinge elements of the window frame I, as is shown in Fig. 6, and headed pivot elements it; are employed which are provided with screwthreaded shank portions that are screwed into screwthreaded openings formed in the fixed hinge elements l3, portions of said pivot elements being extended through openings formed through the outwardly extended portions of the hinge elements Hi of the window sashes to provide for the pivotal support of the window sash.

The frames of the window sashes if}, H, and i2, are shaped in cross-section as is shown in Figs. 2 and 6; that is to say the top section of the frame of each window sash is channel shaped in crosssection, while the opposed side sections and the bottom section of each window sash frame are shaped, as is shown in Figs. 2 and 6. By referring to Fig. 5, the exact cross-sectional shape of the opposed side sections and the bottom section of each sash frame will be apparent. In other words, the cross-sectional structure of each of these sections is made up of an inner wall l6 and an outer wall ii that extend in opposite directions from opposite ends of a cross wall l8. cross wall [8 has formed therein a recess I9 which is open at one side thereof and is located adjacent to the inner wall it, and a second recess 29 which is open at the opposite side of the cross wall and is located adjacent to the outer wall ll, each of said recesses having an inclined face at one side thereof which gives said recess a shape of partial dove-tail formation.

Each of the window sashes is provided with a pane of glass which is supported by the frame of the sash, said pane of glass being introduced in place with respect to the frame of the sash by inserting the lower edge portion of said pane of glass into the recess iii of the lower section of the frame of the sash and by inserting a side edge portion of said pane of glass into the recess [9 of a side section of the frame of the sash. With the lower edge portion and a side edge portion of the pane of glass disposed deep in the recesses- IS of the bottom section and a side section of the frame of the sash, the top edge portion and the opposite side edge portion of the pane of glass may be moved inwardly of the frame of the sash to aline them with the recess of the top section of the sash frame and with the recess i9 of the side The section of the sash frame opposite to the side section of the sash frame in whose recess I?! a side edge portion of the pane of glass is disposed. The pane of glass may then be adjusted to its proper centered position with respect to the sash frame and putty 2| may be applied to secure the pane of glass in position with respect to the sash frame.

The recesses 21% formed in the cross walls of the bottom section and the opposed side sections of the frame of each window sash receive portions of lengths of Weatherstripping 22, which are shaped as is shown to good advantage in Fig. 5. In other words each length of Weatherstripping 22 includes a portion 23 which is shaped in accordance with the cross-sectional shape of the recess 26 that receives said Weatherstripping portion, a portion 26 that parallels the cross wall of the sash frame section that supports said length of Weatherstripping, and a bowed contacting portion 25. It is to be noted that because of the partial dove-tail shape of the recesses 20 and the corresponding shape of the portions 23 of the length of Weatherstripping 22, said lengths of Weatherstripping are firmly secured in place with respect to the sash frames. The bowed portion 25 of the length of Weatherstripping 22 at the bottom of the frame of the lowermost sash it contacts, when said lower sash is closed, with the top face of the sill portion Ic of the window rame 5, while the bowed portion 25 of the length of Weatherstripping 25 at the bottom of the frames of the sashes ii and i2, contact respectively with the upper faces of the top sections of the sashes is and H (see Fig. 2). In like manner, the bowed portions of the lengths of Weatherstripping 22 arranged at the opposite sides of the frames of the window sashes i9, Ii, and I2, contact with the inner faces of the jamb portions of the window frame I (see Fig. 6). The recess 8 formed in the lower wall of the head portion la of the window frame 1 receives a correspondingly shaped portion of a length of Weatherstripping 22, shaped as shown in Fig. 5, and the bowed portion of this length of weatherstripping contacts with the upper face of the top section of the frame of the upper sash H.

The improved means of the present invention for actuating the pivotally supported window sashes iil, H, and 12, to open and closed positions comprises a plurality of tubular elements 25, 2?, and 28, which are arranged in telescoping relation, as is shown to good advantage in Figs. 1, 2, and 4. The telescopically arranged tubular elements 25, 2?, and 23 extend vertically of the window structure at the approximate transverse center thereof, as is shown in Fig. 1, and said tubular elements are adapted for independent rotary movement. The inner tubular element 28 extends, at its upper end, through an opening formed through the lower wall of the head id of the window frame 1, said upper portion of said tubular element 28 being rotatable within said opening and having a collar 28' fixed thereto which contacts with the upper face of said lower wall of said head portion of said window frame (Fig. 2).

At their lower ends the tubular elements 26, 2?, and 23 are supported in their vertical positions by a plurality of vertically spaced, horizontally disposed plates 29, 39, iii, and 32. The plates 29, 39, 3|, and 32 are substantially circular in plan and said plates are disposed partially within and partially outside of the sill portion Ia of the window frame I, the outwardly projected porgamma '5 'tions of --'said plates extending "through an open- "ing iormed through the inner wall of-said sill portion, and said plates being welded, or otherwise secured, to said innerwallof said=sill portion referring to Fig. 4 it will be noted "that the telescopic element 26 passes through an "opening formedcentrally through the 'upper plate "is and restsat its lower end on the'plate 30. Likewise, the tubular element 27 passes throughanopening formed centrally through the plate 3'il-and Tests at its lower end on the plate 3lpwhilethe tubular element 28 passes through an "opening {formed centrally through the plate 32 'and *is supported in its vertical position by the collar '28 previously mentioned herein. The'platestll, '3l,, and '32, are "each provided with anarcuate IOW of apertures 33which'serve'aipurpose'tobe *hereinafterset forth;

Secured to the tubular elements 26,"2'|,'and"28 at'thelower ends thereofare operating'members 34, :35, and 3 6, the operating 'inember'sd "being fixedly'secured' tothe lower portion of the tubular element 26, the operating 'memberS5"beirigfixe'dly :securedto the lower portion of thetubular 'ele- 'ment 2?, and the operating member '36 being Lfixedly secured to thelower portionnfthe'tubular "element 28 "(seeiFig 4).. .'Ihe operating members I34, 35,.and 3.5 are shaped as is shown in Fig. '31; that is to say each of 'said operatingmembers in- "cludes an endportion of partial circular formation which is apertured centrally to receive the lower end portion of the tubular element with which said operating member is associated, .and -,.each operating member includes a bifurcated portion which extends outwardly fromsaid partially circular portion.

Pivotally supported between the spaced legs of the bifurcated portions -of .the operating .members 34, .35, and 3%, by pivot elements.31,.are operating handles-3S, 39,.and Ml, theoperatinghandle 38 beingassociated with the operating member .34, the operating .handle 39 being associated with .the operating member 35, and the operating handle '40 being associated with the operating member .36. The operating handles .38, 3.9, and 4 are provided with leaf springs '41, the .leaf spring 4! of each operating handlebeing anchored at one of its ends to the operating handle, and

contacting .at its opposite ends with one of the plates 29, 30, and 3] which is located immediately above the operating handle with which said leaf springis associated. .Theleaf springs 45 tend-to move the end portions of the .operatinglhandles at which they are locatediin a downward .direction, and these end portions of said operating handles are provided with downwardly projected extensions 42 which are adapted toenter the apertures 33 of the plates 38,31, and IE2 for'locking the operating handles in positions to which theyhave beenadjusted. 7 Fixed to the tubular elements '26, '21, and 28, are operating arms "43, M, and 445, the operating arm 53 being fixed to 'the tubular element 2'6, the operating arm '44 being fixed to the tubular element 21, and the operating arinlidbeing fixed to the tubular elementZB (see 'Fig. 1). Each of the operating'arins 43, t4. and ddiis'provi'd'ed with "6 Each of 'th'e 'operating arms "#3, 4'4, and 45 "associated therewith a 'link' il,theilink of each operating arm being ,pivotally attached .at one :of its ends to the -arm-with which it is'associated, -andbeingpivotally"attached at its opposite end tea bracket 48 that is weldedpor otherwisesecured, toone ofthe window'sashes Iii, H, and F2.

*Attention is "directed'tofFig. Qof the drawings which illustrates "the :manner lil'l which each "of "the links 14'! is pivotally connected to its associated operating arm 433 M, or 45. In other words, the end'portion of the link is "curved upwardly "and through this upwardly curved end'portion'of the'link an aperture use formed, a'headed pivot element "50 being fixedtotheassociated operating arm and being extendedthrough the aperture. Thediameter of theportionofthepivot element "5.0 of each operating arm 4.3, M, or 45 that extends'throughtl e aperture 49 of the-associated link M is substantially less than "the diameter of .the aperture soas .toprovide a'loose pivotal connectionb'etween 'the'links and their associated operating arms. Theopposite ends of 'thelinks '41 are'loosely connected to the brackets-d'B of the window sashes iii, H, and 52 in a similar manner, these Opposite ends of said'links being curved upwardly and apertured, andheaded .pivot elements 52 (Fig. 1) being hired to the brackets 48 and being extended loosely through said apertures of the links.

In order to provide for weather-sealing the window sashes to, H, and i2 when they have been movedtotheirclosedpositions, a;member" 53 is welded, or otherwise secured, to each of the Window sashes. This member 53 isshaped asi's shown to goodadvantageinFigs 6, "I, and 3,.an'd as will. presently appear herein, the extensions "45 of the operating arms d3, M, and 55 engage'said members 53 as the window sashes'approach their closed'positions in amannerto draw'the window sashes into tight, weather-sealing contact with thewindow'frame.

V 'In'the used the improved window-structure of the-present invention the'window sashes qlii, H,

-: and 12 are capable of independent actuation to an'intermediate offset portion which causes the I 'open and closed positions and hencemay beactuated in any desired sequence, orwithout regardfor any particular sequence. Assuming that all of the window sashes "are in their closed and locked positions and that it is desiredto actuate one of 'said window 'sash'es to its open position, it isnecessary to select the operatinghandle 3.8, 39, or? 'ofthe'window'sash'tobeactuated. The selected operatinghandle is then depressed at its outer end'to elevate the inner end portion of the operating handle and thereby raise the locking projection '42 of the 'operatinghandle out of the 'aperture33 of the plate '3'il,3l or .32, into which saidlockin'g projection was extended. The operating'handla'while s0 depressed'is rotatedin the properdirection about the, axis of the telescoped tubular elements 126,123, and such rotary movement 'of "the operating handle being transmitted by'the associated link ii! to the-associated window sash'so as 'to'actua'te said window, sash toits open position. "When the window sashhas been actuated .to the desired open position .dovmward pressure on the outer end'porticn-o'f the operat 'ingihandleis relieved. so. as to permit the locking projection 42 of the operating handle .to enter an aperture 33 o'fthe .related'plateit'li,.31, or so as to lock the windowsas'h int'he position to which it has been adjusted.

'In like manner, when it isdesired to adjust an open-windowsash'toits closed positionthe outer portion of the operating handle operativeiy associated with said window sash is depressed to raise the locking projection 42 out of the aperture 30 in which it is disposed. The operating handle is then rotated in the proper direction to cause the associated operating arm 43, 44, or 45 and link 4! to move the window sash to its closed position. As the window sash being closed approaches its closed position an edge portion of the extension 46 of the operating arm 43, 44, or 45 will pass into engagement with the inclined edge 53 of the member 53 fixed to the window sash being operated, as is shown in Figs. 7 and 8, with the result that the member 53 of the window sash is positively engaged by the extension 46 of the operating arm during the final closing movement of the window sash in such manner that the window sash is drawn into tight, weather-sealing contact with the window frame. When the window sash being moved to a closed position has reached its closed, weather-sealing position the outer portion of the operating handle is permitted to raise in response to action by the leaf spring 4| associated with said operating handle, whereupon the extension 42 of said handle will enter an aperture 33 of the associated plate 30, 3|, or 32 to lock the window sash in its closed position.

I claim:

1. A window structure comprising a window frame, a plurality of window sashes arranged within said window frame and disposed one above another, means at the upper portions of said window sashes for pivotally supporting said window sashes with respect to said window frame, and sash-operating means for adjusting the lower portions of said window sashes to open and closed positions relative to said window frame, said sashoperating means comprising telescopically arranged elements adapted for independent axial rotation and extended vertically of the window structure at the approximate transverse center thereof, operating members one of which is fixed to each of said telescopically arranged elements for rotation therewith, connecting members each of which is connected at one of its ends to one of said operating members and at its opposite end to one of said window-sashes, and operating handles one of which is associated with each of said telescopically arranged elements for rotating same axially.

2. A window structure comprising a window frame, a plurality of window sashes arranged within said window frame and disposed one above another, means at the upper portions of said window sashes for pivotally supporting said window sashes with respect to said window frame, and sash-operating means for adjusting the lower portions of said window sashes to open and closed positions relative to said window frame, said sashoperating means comprising telescopically arranged elements adapted for independent axial rotation and extended vertically of the window structure at the approximate transverse center thereof, operating members one of which is fixed to each of said telescopically arranged elements for rotation therewith, connecting members each of which is connected at one of its ends to one of said operating members and at its opposite end to one of said window sashes at the lower portion thereof, and operating handles one of which is associated with each of said telescopically arranged elements for rotating same axially.

3. A window structure comprising a window frame, a plurality of window sashes arranged within said window frame and disposed one above another, means at the upper portions of said window sashes for pivotally supporting said window sashes with respect to said window frame, and sash-operating means for adjusting the lower portions of said window sashes to open and closed positions relative to said window frame, said sashoperating means comprising telescopically arranged elements adapted for independent axial rotation and extended vertically of the window structure at the approximate transverse center thereof, operating members one of which is fixed to each of said telescopically arranged elements for rotation therewith, connecting members each of which is pivotally connected at one of its ends to one of said operating members and is pivotally connected at its opposite end to one of said window sashes at the lower portion thereof, and operating handles one of which is associated with each of said telescopically arranged elements for rotating same axially.

4. A window structure comprising a window frame, a plurality of window sashes arranged within said window frame and disposed one above another, means at the upper portions of said window sashes for pivotally supporting said window sashes with respect to said window frame, and sash-operating means for adjusting the lower portions of said window sashes to open and closed positions relative to said window frame, said sashoperating means comprising vertically disposed and telescopically arranged elements adapted for independent axial rotation, operating members one of which is fixed to each of said telescopically arranged elements for rotation therewith, connecting members each of which is connected by a loose pivotal connection at one of its ends to one of said operating members and is connected by a loose pivotal connection at its opposite end to one of said window sashes at the lower portion thereof, and operating handles one of which is associated with each of said telescopically arranged elements for rotating same axially.

5. A window structure comprising a window frame, a. plurality of window sashes arranged within said window frame and disposed one above another, means at the upper portions of said window sashes for pivotally supporting said window sashes with respect to said window frame, and sash-operating means for adjusting the lower portions of said window sashes to open and closed positions relative to said window frame, said sash-operating means comprising vertically disposed and telescopically arranged elements adapted for independent axial rotation, operating arms one of Whit. is fixed to each of said telescopically arranged elements for rotation therewith, links each of which is loosely pivoted at one of its ends to one of said operating arms and is loosely pivoted at its opposite end to one of said window frames at the lower portion thereof, pivotally supported operating handles one of which is associated with each of said telescopically arranged elements for rotating same axially, and locking means for locking said operating handles in adjusted positions thereof where the associated window sashes are in open or closed positions relative to said window frame, said locking means comprising locking projections fixedly mounted on said operating handles, and fixedly supported plates which are provided with apertures into which said locking projections are movable.

6. A window structure comprising a window frame, a plurality of window sashes arranged within said window frame and disposed one above another, means at the upper portions of said window sashes for pivotally supporting said window sashes with respect to said window frame, and sash-operating means for adjusting the lower portions of said window sashes to open and closed positions relative to said window frame, said sash-operating means comprising vertically disposed and telescopically arranged elements adapted for independent axial rotation, operating arms one of which is fixed to each of said telescopically arranged elements for rotation therewith, links each of which is loosely pivoted at one of its ends to one of said operating arms and is loosely pivoted at its opposite end to one of said window frames at the lower portion thereof, pivotally supported operating handles one of which is associated with each of said telescopically arranged elements for rotating same axially, and locking means for locking said operating handles in adjusted positions thereof where the associated window sashes are in open or closed positions relative to said window frame, said looking means comprising locking projections fixedly mounted on said operating handles, fixedly supported plates which are provided with apertures into which said locking projections are movable, and spring elements associated with said operating handles which tend to urge said locking projections of said operating handles into said apertures of said plates.

7. A window structure comprising a window frame, a plurality of window sashes arranged within said window frame and disposed one above another, means at the upper portions of said window sashes for pivotally supporting said window sashes with respect to said window frame, sashoperating means for adjusting the lower portions of said window sashes to open and closed positions relative to said window frame, said sash operating means comprising vertically disposed and telescopically arranged elements adapted for independent axial rotation, operating members one of which is fixed to each of said telescopically arranged elements for rotation therewith, connecting members each of which is connected at one of its ends to one of said operating members and at its opposite end to one of said window sashes, and operating handles one of which is associated with each of said telescopically arranged elements for rotating same axially, and means for weather-sealing said window sashes when they are moved to their closed positions with respect to said window frame, said weather-sealing means comprising an element on each of said window sashes, and a fixed part on each of said operating members, said parts on said operating members being adapted to engage said elements on said window sashes when the window sashes approach their closed positions to draw said window sashes into weather-sealing contact with said window frame.

8. A window structure comprising a window frame, a plurality of window sashes arranged within said window frame and disposed one above another, means at the upper portions of said window sashes for pivotally supporting said Window sashes with respect to said window frame, sash-operating means for adjusting the lower portions of said window sashes to open and closed positions relative to said window frame, said sash-operating means comprising vertically disposedand telescopically arranged elements adapted for independent axial rotation, operating members one of which is fixed to each of said telescopically arranged elements for rotation therewith, connecting members each of which is connected at one of its ends to one of said operatin members and at its opposite end to one of said window sashes, and operating handles one of which is associated with each of said telescopically arranged elements for rotating same axially, and means for weather-sealing said window sashes when they are moved to their closed positions with respect to said window frame, said weather-sealing means comprising an element fixed to each of said window sashes, and an extension fixedly formed on each of said operating members, said extensions on saidoperating memhere being adapted to engage said elements on said window sashes when the window sashes approach their closed positions to draw said window sashes into weather-sealing contact with said window frame.

9. A window structure comprising a window frame, a plurality of window sashes arranged within said window frame and disposed one above another, means at the upper portions of said window sashes for pivotally supporting said window sashes with respect to said window frame, sash-operating means for adjusting the lower portions of said window sashes to open and closed positions relative to said window frame, said sash-operating means comprising vertically disposed and telescopically arranged elements adapted for independent axial rotation, operating members one of which is fixed to each of said telescopically arranged elements for rotation therewith, connecting members each of which is connected at one of its ends to one of said operating members and at its opposite end to one of said window sashes, and operating handles one of which is associated with each of said telescopically arranged elements for rotating same axially, and means for weather-sealing said window sashes when they are moved to their closed positions with respect to said window frame, said weather-sealing means comprising an element fixed to each of said window sashes which is provided with an inclined edge, and an extension fixedly formed on each of said operating members, said extensions on said operating members being adapted to engage the inclined edges of said elements on said window sashes when the window sashes approach their closed positions to draw said window sashes into weather-sealing contact with saidwindow frame.

MICHAEL J. TRACY.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 474,720 Brennan May 10, 1892 1,084,222 Moller Jan. 13, 1914 1,093,099 Bayley Apr. 14, 1914 1,157,760 Cibulas Oct. 26, 1915 1,185,512 Kohler May 30, 1916 1,559,958 Hauser Nov. 3, 1925 1,923,233 Ross Aug. 22, 1933 1,983,152 Stewart Dec. 4, 1934 2,267,140 Schottenberg Dec. 23, 1941 2,331,823 Baldock Oct. 12, 1943

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