US2141353A - Refrigerator car door - Google Patents

Description

D 211938. n H. FUCHS j 2, 1 35 REFRIGERATOR 01m DOOR Filed Nov. 18, 1956 5 Sheets-Sheet 1 i n a u Dec. 27-, 1938. H. FUCHS 2,141,353

" REFRIGERATOR GAR DOOR Filed Nov. 18, 1936 5 Sheets-Shegt 2 a; E]. g

H. FUCHS 2,141,353-

5 sh ts-sne' z 3. A n F- u.

Dec. 21, 1938.

REFRIGERATOR CAR DOOR I Filed Nov. 18, 1936 27, 1938. FUCHS REFRIGERATOR cm noon 5 Sheets-Sheet 4- Filed Nov. 18, 1936 Dec. 27, 1938. H. FUC HS REFRIGERATOR CAR DOOR Filed Nov. 18, 1936 5 Sheets5hee 5 Patented Dec. 27, 1938 UNITED STATES PATENT OFF ICE REFRIGERATOR GAR DOOR Henry Fuchs, Chicago, Ill., assigncr to ,W. H.

Miner, Inc, Chicago, 111., a corporation of Delaware Application November 18, 1936, Serial No. 111,371

19 Claims. (01. 20-23) This invention relates to improvements in re- 2 is a view similar to Figure 1, onan enlarged frigerator car doors. scale, but broken away and showing the struc- One object of the invention is to provide in a ture at the lower right hand portion of Figure 1. door construction for refrigerator cars comprising Figure 3 is a horizontal sectional View, corre- L a single sliding door for closing the door opening sponding substantially to the line 3-3 of Figure of the car, simple and efiicient, rugged means for 2. Figure 4 is a vertical sectional View, corresupporting the door for movement into or out of sponding substantially to the line 4- 4 of Figure the door opening, together with actuating means 2. Figure 5 is a vertical sectional view, correfor either forcing the door tightly closed or prying sponding substantially to the line 5-5 of Figure 2.

the same partly open, the actuating means being Figure 6 is a view similar to Figure 2, but showso arranged and designed that it also serves to ing the parts in the position assumed when the operate the door supporting means to move the door has been pried partly open. Figure 7 is a latter to displace the door either toward or away w S m to Figure 5, but ShOWing the door from the door opening. I pried partly open and illustrating the parts of the A further object of the invention is to provide mechanism in the same position as Figure 6.

means of the character described in the preced- Fig e 8 is a horizontal Sectional View, Correing paragraph, so arranged and designed that the Sp Substantially t0 the line f Figure projection of the parts thereof from the car will 7. Figure 9 is a View similar to Figure 2, but not exceed certain predescribed limits, so that the S o i e Parts O the mechanism in the 1 mechanism will clear the usual loading platform tion assumed when the door is withdrawn from structures and all other obstructions encounth (100 Op Figure 10 s a w S milar t tered in standard railway practice. Figure 5, but showing the parts in the position Another and more specific object of the inven- Corresponding to that illustrated in Figure 9- tion is to provide means for opening and closing Figure 11 s a hOIiZOHtaI Sectional View, Corredoors of the sliding singletype for refrigerator spending substantially to the line I l-l l of Figcars, which is manually actuated and controls We mov ent; of th door t and t of t 1 In said drawings, 20 indicates the side wall of opening and also serves to either force the door a 1feiiigeltttel 0911', 2| the deer p d 22 t y C osed or my the same partly open, and a single door for said opening. The door 22 is which includes keeper engaging means cooperatslidingly supported on top and bottom tracks 23 ing with fixed keepers mounted on the car wall, d 24 meunted 0n the side Wall Of the swinging crank members for supporting the door speetively athOVe and below the deer Opening 2| and guiding the same for movement into and out a d extending lengthwise 0f the T d of the door opening, and actuating means commay be of any 'weh'khown type and, as must/1 m t id keeper engaging means and crank ed, has the edges thereof beveled to fit corre- 35 members for efieeting swinging movement of the spondingly beveled edges on the Walls of the door latter to displace the door, and sliding movement opfehihg the heveled edge faces of door of the former to cooperate with the keepers to belng provided w1th the usual compressible 1nsu either force the door tightly closed or pry the lahoh to hrhduce hght Seal when the door is 40 same partly open. closed- 40 Yet another object of the invention is to pro- The tracks 23 and 24 may he of any Well-known vide means of the character described in the preh j bottom track h hhowh most clearceding paragraph wherein the actuating means is 1h Figures 91 15 m the form of an operatively Connected with the crank members elongated bar of substant ally Z-shaped cross secto efiect rotation of the latter, but is slida'ble with Firm, having Parallel; vertlcally deposed, upstahd- 45 respect to the crank members to operatethe keepmg and depenqmg bottom flanges 25 and 25 er engaging means, connected by a horizontal transverse central web Other objects of the invention will more clear- The bottom flange 23 of track 24 is bolted 1y appear from the description and claims hereinto the Car Wall and the upstandmg top flange is fter n m spaced outwardly from the side wall of the car 50 In the drawings forming a part of this speciand serves as the guide rail proper of the track. fication, Figure 1 is an elevational view, broken The top track 3 is preferably of channel-shaped away, of the side wall of a refrigerator car, illuscross section, having the opening of the channel trating my improvements in connection theredirected downwardly.

with, said View showing the door closed. Figure My improvements co prise h Oa Y p s 0 55 outer ends of the crank members on the tracks 23 and 24; a pair of operating levers H--l-I operatively connected to the bars C-C; link members KK connecting the levers H H to the bars D -D; combined supporting and guide brackets M,M; and links N-N supporting the levers H-Hfrom the brackets M- lvi.

The four crank members AA-AA are arranged in pairs at opposite sides of the door 22, the members of each'pair being disposed respectively at the top and bottom of the door. crank members serve to support theidoor 22 on the tracks 23 and 24 and are rotatably mounted in the'bearing brackets BIB and BB which are fixed to the door; The bearing brackets BB and BB are arranged in pairs at opposite sides of the door, the members ofeach pair being disposed in vertical alignment closely adjacent, to the top and bottom edges of the door. Each bracket B comprises a base or back plate 28 and a cover plate 29 overlying the back plate and secured to the outer face, of the door by bolts or similar securing elements. The back and cover plates are provided with complementary part bearing openings which together form a vertically disposed, susbtantially cylindrical bearing opening 39. i

Each crank member A has a substantially cylindrical shaftlike bearing portion 3! journaled in the bearing opening 36 of the corresponding bracket B. At the inner end, the cylindrical bearing portion of the crank member A is provided with an annular flange 32.which has shouldered engagement with the inner end of the bearing bracket. portion 3| is laterally enlarged, as indicated at 33, said enlarged portion having shouldered engagement with the outer end of the bearing bracket B. As-will be evident, the crank mem-' bers A-AAA are thus held against endwise movement in the bearing brackets BB and BB. At the enlarged outer end 33 of the sleeve section 32, each crank member is provided with a laterally, outwardly projecting, downwardly inclined arm 35 which has a pivot or crank pin 35 at the outer end thereof. The crank pins 35 of the arms 34 of the top crank members AA are journaled in the carriers F-'F which are in the form of discs or rollers guided in the channelshaped opening of the top rail 23 The crank pins 35-35 of the arms 34-34 of .the bottom crank members AA are journaled inthe carriers G-G which are in the form of slides mounted on the track 24. Each slide'G- has a pair of antifriction rollers 36-36 rotatably mounted thereon at opposite ends, which ride on the top edge of the rail 25 of the track 2Q. Each carrier or slide G is preferably provided with depending spaced side portions 37-31 which embrace the rail of the track at opposite sides to thereby guide the slide lengthwiseon said track. Between'its ends each carrier G is provided with an upwardly opening bearing seat 38 in Which the pivot or journal pin 35' of the corresponding lower crank member A is journaled. It will be evident that These At the outer end, the cylindrical sleeve the four crank members are thus swingingly supported from the tracks andcarry and guide the door 22 for movement into'and out of the door "opening2l.

, with oppositely disposed, laterally projecting,

transversely aligned, keeper engaging lugs Gil-40.

'The keeper engaging lugs idm are preferably of cylindrical cross section. Each keeper engaging bar is thus provided with a. substantially T- shaped keeper engaging end. The bars C and D of each pair are verticaly aligned and are slidable respectively. in vertically aligned, axial bearing openings 4ldl, of square cross section, of the top and bottom crank members A A at the correspondingsideof the, door. The top bars CC,

'as clearly shown in Figure 1, are longer than the .bottom'bars D--D and have their lower ends guided in thebrackets M-M, as hereinafter more fully described. 7 V

Although thesliding fit betwen the bars C and D and the square openings ll- 5! of the corres'ponding crank members A--A provides for rotation of the crank members by the bars, the fit is rather-looseso as to provide a sufficient amount of clearance to permit slight turning of the bars With respect to the crank members-to, allow for slight relative adjustment of the parts to compensate for the necessary relative movement of the. keeper engaging locking bars and crank members A--A as hereinafter pointed out.

When the door 22 is seated in closed'position within the door opening 21 the keeper engaging bars C and D and C and D are Withdrawn to their innermost position and in order to accommodate the T-headed keeper engaging portions thereof in that position, the innerends of the arms 3535' of the crank members A-A are recessed or pocketed, as indicated at @242.

The operating levers H-H are respectively as- 'sociated with the two' sets of vertically aligned is pivotally connected at its inner end to the 1 lower end of the bar C, as indicated at 43. Inwardly of the pivoted end 43, the lever H is provided with a laterally offset, outstanding portion 44 formed integral therewith. The lever is supported for pivotal movement by the link N which is carriedlby the bracket M and has its lower end pivotally connected to the offset portion 44 of the lever H, as indicated at $5, thereby supporting the lever for swinging pivotal movement. The lever H is also connected to the inner end of the bar D by a link K having its lower end pivotally connected to the inner end of the bar D, as indicated at 46, and having its upper end The supporting bracketsMM of the bars 7 CC' are fixed to the outer face of the-door and each bracket M is in vertical alignment with the top and bottom bearing brackets .B.B at the corresponding side of the door. Each bracket M1 is of two partconstruction comprising a base or back plate section 48, abutting the outer face of the door, and a cover plate section 49 overlying the base section and bolted to the door. The base and cover plate sections are provided with complementary bearing seats providing a substantially cylindrical bearing opening 50 having an enlarged central section 5,! in the form of an annular groove. A bearing sleeve 52 is rotatably mounted in the bearing opening 50 of each bracket M, the bearing sleeve having an enlarged central section in the form of an annular rib fitting the groove 5| of the opening 50, thereby holding the sleeve against endwise movement in the bearing bracket. The bearing sleeve 52 isrotatable in the bearing bracket M and has an outstanding lug 53 thereon to 'whichthe upper end of the 7 as indicated at 55, to accommodate the lug 53 for swinging movement with the sleeve 52 about the vertical axis of said sleeve. The sleeve 52 serves as a guide for the lower end of the corresponding bar C and is provided with an axial, vertical guide opening of substantially square cross section within which said bar slidingly fits. As will be evident, the bars CC and the sleeves 52-52 are thus connected for rotation in unison while said bars are slidable endwise in said sleeves. As will be further evident, each operating lever H is operatively connected to the corresponding top bar C by the link N, which is pivoted to the sleeve 52, and to the corresponding bottom bar D by the link K, so that swinging movement of the lever in a horizontal plane about the vertical axes of said bars eifects rotation of the latter and the connected crank members AA, and so that swinging movement of the lever in a vertical plane on its pivot 45 forces the bars C and D of each setvertically apart and projects the same outwardly of the bearing brackets BB to cooperate with the corresponding keepers E-E.

The keepers EE and EE are arranged in sets at opposite sides of the door opening 2|, the two members of each set being disposed respectively above and below the door opening and secured to the side wall of the car. Each keeper E is in the form of a casting having laterally spaced, outstanding wing portions 5656 provided with transversely aligned, opposed, interior cam slots 5'i51 adapted to slidingly accommodate the lugs 4040 of the corresponding keeper engaging bar. The inner end portion of the slot of each keeper, that is, that end portion of the slot which is nearest the door opening, is inclined inwardly toward the wall of the car to provide proper camming action to force the door closed or pry the same open when the cooperating keeper engaging bar is actuated. The outer end portions of the slots are substantially vertical, as shown, to hold the door locked when the lugs id-40 of the cooperating keeper engaging bar are engaged therein.

The usual locking and sealing latch members 5858 are provided for locking the actuating lever arms III-I in position when the door is closed. Locking means in the form of supporting hook brackets 59-59 are preferably also provided for latching the handle lever arms H--H in position when the door is completely withdrawn from the door opening or is in position to be moved along the tracks. I

Although the keeper engaging bars C-D and CD are herein disclosed, as of square, transverse cross section and the shaftlike cylindrical bearing portions 3i--3l and 3l--3I of the crank members AA and AA as having square openings in which said bars are engaged to effect rotation of the crank members by the bars, these parts necessarily need not be so formed to eiTect rotation of the members AA with the bars C and D, inasmuch as the T-headed keeper engaging ends of said bars, when Withdrawn from the keepers E-E and E-E and seated in the pockets 4242 and 42-42 of the members AA and AA lock said members to the bars CD and -D for rotation therewith. The locking bars CD and CD may thus be formed of round cross section and the openings of the cylindrical bearing portions or shafts of. the crank members in which the bars slide may also be of circular cross section without in any way interfering with the proper operation of the mechanism. 7

The operation of my improved door mechanism, assuming that the door is in the closed position shown in Figures 1, 2, 3, 4, and 5, is as follows: After unlocking the latch members 58- 58 in the usual way, each operating lever H is swung outwardly and upwardly from the pendant position shown in Figures 1 to inclusive to a substantially horizontal position, thereby moving the parts to the position shown in Figures 6, 7, and 8. As will be evident, the levers III-I may be operated either. simultaneously or successively. During the time that the lever H of each set of keeper engaging bars CD is swung upwardly from the pendant to the horizontal position, the

inner end portion of the lever swings on the pivot.

45 at the lower end of the link N which is anchored against vertical displacement by its connection with the bearing sleeve 52 carried by the bracket M. As the lever H swings on the pivot 45, the top. and bottom bars C and D will be pulled inwardly toward each other by the pivotal connection 43 of the bar C with the lever H and the link connection K of the lever with the bar D. The keeper engaging T-headed end of the bar C is thus moved downwardly while the T- headed end of the bar D is moved upwardly. Inasmuch as the keeper engaging lugs 49 l l of these bars travel respectively downwardly and upwardly in the slots of the top and bottom keepers EE, the door 22 is cammed or pried outwardly from the position shown in Figure 5 to that shown in Figure 7. When the operating handle lever H reaches a substantially horizontal position, the keeper engaging T-headed ends of the bars C and D are completely withdrawn from the keepers E-E and are seated in the pockets 42 of the arms 3434' of the crank members AA. During outward movement of the door 22 from the position in Figures 1 to 5 inclusive to that shown in Figures 6, '7, and 8, there is necessarily a corresponding slight outward swinging movement of the arms of the crank members AA. The looseness or clearance between the square bars CD and CD and the openings of square cross section in the cylindrical bearing portions 3 I -3l of the crank members AA permits of the required slight amount of rotation of the arms of the crank members without binding action of the parts.

When the door has been freed from they door opening, as shown in Figures 6, '7, and 3, each operating handle lever H is rotated through an angle of 90, thereby rotating the corresponding bars C and D and the crank members AA connected thereto from the position shown in Figures 6, 7, and 8 to the positions shown in Figures 9, 10, and 11. As will be evident upon reference to Figure '1, the operating lever H and the crank members A-A at the left hand side of the door will be rotated in a direction reverse to the corresponding parts at the right hand side of said door. 7

The door 22 is thus moved out of the door opening 2| clear of the side wall of the car so that the.

door may be slid along the tracks 23 and 24 to entirely clear the door opening. In order to prevent accidental movement of the crank arms of the crank members A-A and consequent displacement of the door inwardly jor outwardly with respect to the tracks, while the door is being slid along the tracks, the handle levers H H are preferably latched in position by the latch mem bers 59-59; These latch members may be of anywell-known character for the purpose, but, as hereinbefore described, are preferably of the hook type. In looking the handle levers H in position, these levers are swung upwardly to a sufficient extent to clear the hooks of the latch members 59 and are then dropped in back of the hook portions of said latch members, as indicated in Figure 9.

In closing the door, the operation is the reverse of that hereinbefore described. The door is slid along the tracks 23 and 24 into position in front of the door opening 2!. The handle levers H H are then disengaged from the latch members 59-59 and are swung through arcs of 90, thereby rotating the crank members A-A and AA and moving the door from the position shown in Figures 9, l0, and 11 to the position'shown in Figures 6, '7, and 8. At the end of this part of V V the operation, the lever arms H-H aredisposed in horizontal position, extending outwardly at right angles to the plane of the door. In moving the door 22 from the position show'n'in Figures 9,10, and 11 to that shown in Figures 6, 7, and 8,

the keeper engaging T-head end portions of the bars C-D and -D are broughtinto substantial vertical alignment with the entrance openings of the slots 'l5l of the keepers E--E'. When the parts are in this position, each operating lever 1 7 time in the pendant position shown in Figure l,

are locked and sealed in the usual manner by the latch members 58-53.

I have herein shown and described what I now consider the preferred manner of carrying out my invention, but the same is merely illustrative and I contemplate allchanges and modifications that come within the scope of the claims appended hereto. V

I claim:

1. In a door construction for refrigerator cars having a wall member provided with a 'door opening, the combination with a door adapted to close said opening; of swingable means connected to said door for guiding the door into and out of the door opening; displaceable means for forcing said door into the door opening or prying the same out of said opening; and common operating means, operatively connected to both said displaceable means and swingable means, movable in one direction for actuating said displaceable means and movable in another direction for imparting movement to said swingable means.

2. In 'a door construction for refrigerator cars having a wall member provided with a dooropening, the combination with a door adapted to close said opening; of supporting crank means connected to said door for guiding the same into and out of the door opening; rotary actuating means for'sai'd crank arms, said actuating means being 7 slidably connected to said crank means; means engaged by said actuating means in sliding movement thereof for forcing said door tightly closed or prying the same partly open; and means for imparting rotary and sliding movement to said actuatingmeans. V

3. In a door construction for refrigerator cars having a wall member provided with a door opening, the combination with a door adapted to close said opening; of supporting crank arms 'connected to said door for guiding the same into and V out ofthe door opening; keepers on the car; re-

ciprocating keeperengaging members on said'door engageable with the keepers for forcing the door tightly closed or prying the same partly open, said keeper engaging members being rotatably mounted on the door; actuating means for imparting rotary and reciprocating movement to said keeper engaging members; pivoted supporting arms for guiding the door into and out of the door opening; and means operatively connecting said arms to said keeper engaging members to impart rotary movement tosaid arms from said keeper engaging members to swing said arms and move said door into and out of the door opening.

'4. In a door construction for refrigerator cars having a wall member provided with a door opening, the'combination'with a door adapted-to'close said opening; of swinging arms journaled on said door for guiding the door into and out of the door opening; operating bars connected to said arms for rotating the latter to move said door into and out of the door opening, said bars having a sliding connection with said arms; manually actuated means for imparting rotary and sliding movement to said bars; and keeper means on the car engaged by said bars during sliding movement thereof to either force said door tightly closed or pry the same partly open.

5. In a door construction for refrigerator cars having a wall member provided with a door opening, the combination with a door adapted to close said opening; of manually actuated operating means, said operating means being both rotatably and slidably mounted on the door; means actuated by rotation of said operating means for either moving the door into the door opening to partly closed position or withdrawing said door from the door opening from said partly closed position; and means actuated by sliding movement of said operating means for forcibly moving said door from said partly closed position to tightly closed position or prying said door topartly open position. i

6. In a door'construction for refrigerator cars having a wall member provided with a door opening, the combination with a door adapted to close said opening; of crank arms journaled on said door for supporting the door and guiding the same into and out of the door opening; keeper means on the car; bars supported on the door for both rotary and reciprocating sliding movement, said bars having shouldered engagement with the crank arms for imparting rotary movement to the latter; fixed keeper engaging means on said bars engageable with said keeper means upon reciprocation of said bars for either forcing the door tightly closed or prying the same partly open; and means for imparting both rotary and reciprocating movement to said bars. I

7. In a door construction for refrigerator cars having a wall member provided with a door opening, the combination with a door adapted to close said opening; of keeper means on the car; longitudinally slidable keeper engaging bars mounted on the door and cooperating with the keepers to either force the door tightly closed or pry the same partly open; manually actuated means for imparting either rotary or longitudinal sliding movement to'said bars; and rotary means with which said bars have shouldered engagement for moving said door to move the same either to or from partly closed position.

8. In a door construction for refrigerator cars having a Wall member provided with a door opening, the combination with a door adapted to close said opening; of crank arms for supporting said door for movement into and out of the door opening, said crank arms being journaled on the door; bars slidingly connected to said crank arms and having shouldered engagement therewith to impart rotary movement to said arms, said bars being rotatably and slidably supported on the door; means for imparting both rotary and sliding movement to said bars; and means with which said bars are slidably engageable for forcing the door into and out of the door opening.

9. In a door construction for refrigerator cars having a wall member provided with a door opening, the combination with a door adapted to close said opening; of crank members for supporting said door for movement into and out of the door opening, said crank members having journal sleeve portions rotatably mounted on the door; operating bars slidable lengthwise in said sleeve portions and having shouldered engagement with said crank members to impart rotation thereto; keepers on the car with which said bars are engageable; and-manually actuated means for successively imparting rotary and sliding movement to said bars to successively impart rotary movement to the crank members to move the door partly closed and engage the bars with said keepers to force the door completely closed.

10. In a door construction for refrigerator cars having a wall member provided with a door opening, the combination with a door adapted to close said opening; of guide tracks on said wall member above and below said door opening; top and bottom crank members mounted on the door for rotation about vertically aligned axes; a crank arm on each crank member; means for pivotally and slidingly supporting the outer ends of said arms on the tracks; vertically disposed operating bars on the door connected to said crank members for rotation therewith, said bars being concentric with the axis of rotation of said crank members and being slidable lengthwise of said axis of rotation; keeper engaging means rigid with said bars; and keepers on the car having cam slots with which the keeper engaging means cooperates to either force the door tightly closed or pry the same partly open.

11. In a door construction for refrigerator cars having a wall member provided with a door opening, the combination with a door adapted to close said opening; of a guide track on said wall member; a carrier slidable on said track; a supporting arm pivoted at its outer end to the carrier;

an actuating bar extending through the inner end of said arm in slidingengagement therewith, said arm and bar being rotatably supported on the door and said bar'being in shouldered engagement with said arm to effect rotation of said arm with said bar; keeper means on the car; keeper engaging means on said bar; and means for actuating said bar to reciprocate the same while engaged with said keeper means and to rotate the same when disengaged from said keeper means to effect rotation of said arm.

12. In a door construction for refrigerator cars having a wall member provided with a door opening, the combination with a door adapted to'close said opening; of keeper means on said wall; vertically disposed top and bottom bars on said door having fixed keeper engaging means thereon en- I gageable with said keepers; an actuating lever swingable about horizontal and vertical axes; means connecting said actuating lever to the bars for reciprocating said bars to engage the same with said keeper means to force the door tightly closed upon swingingmovement of said lever about said horizontal axis, said connecting means transmitting swinging movement of said lever about said vertical axis to said bars; supporting crank arms on the door for guiding said door into and out of the door opening; and sliding connections between said bars and crank arms providing shouldered engagement therebetween to effect rotation of said arms by said bars.

13. In a door construction for refrigerator cars having a wall member provided with a door open ing, the combination with a door adapted to close said opening; of tracks on said wall above and below the door opening; crank arms having shaft portions at their inner ends rotatably supported on said door, the outer ends of said arms being slidingly and swingingly supported on said tracks; operating bars slidably engaged with said shaft portions; interengaging shouldered means on said bars and shafts to efiect rotation of said shafts with said bars; keepers on the car wall; keeper engaging means on said bars engageable with said keepers to eifect closing and opening movement of the door; and means for actuating said bars to effect rotary and sliding movement thereof to rotate the crank arms therewith and slide the bars with respect to said crank arms while said keeper engaging means of said bars is operatively engaged with said keepers.

14. In a door construction for regrigerator cars having a wall member provided with a door opening, the combination with a door adapted to close said opening; of tracks on said wall above and below said door opening; operating bars on said door, crank arms swingingly supported from said tracks and having slidable connection with said bars; means for rotatably supporting said crank arms on the door, said crank arms being rotatable with said bars; an actuating lever connected to said bars for rotation in unison therewith, said lever being movable with respect to said bars to effect sliding movement of the same with respect to said crank arms; keepers on the car wall with which said arms have cooperating sliding engagement to either force the door tightly closed or pry the same partly open.

15. In a door construction for refrigerator cars having a wall member provided with a door opening, the combination with a door adapted to close said opening; of tracks on said wall above and,

sleeve members rotatably mounted in said brackstantial vertical alignment; bearing members on the door in which said sleeves are journaled; top and bottom'aligned keeper engaging bars on the door slidable lengthwise in said sleeves and having shouldered'engagement with said sleeves to impart rotary movement to said crank arms, said bars extending entirely through said sleeves and having rigid keeper engaging means at the outer ends thereof engageable with said keepers to force the door tightly closed or pry the same partly open; and lever means for rotating said bars and for imparting reciprocatory sliding movement thereto.

16. In a door construction for refrigerator cars having a wall member provided with a door opening, the combination with a door adapted to close said opening; of tracks on said wall above and below said opening; top and bottom vertically aligned bearing brackets 'on said door;

ets, each sleeve having asupporting crank arm rigid-therewith and swiveled at its outer end on the corresponding track; vertically disposed top and bottom bars slidably mounted within said sleeves in rotary driving engagement therewith; keeper means on the wall of the car having cam slots; fixed keeper engaging lugs on said bars engageable with said slots to actuate the door; and lever means for actuating said bars to impart rotary and reciprocating movement thereto.

17. In a door construction for refrigerator cars having a wall member provided with a door opening, the combination with a door adapted to close said opening; of tracks on said Wall above and below the door opening; vertically arranged slidable top and bottom bars on the door mounted for both rotary and reciprocating movement; supporting means on said door rotatable on a vertical axis and held against vertical movement;

an actuating lever pivoted on said support for swinging movement about a horizontal axis; mo tion transmitting means connecting said lever to said bars for effecting reciprocating movement thereof when said lever is swung on its horizon- 'fixed bearing sleeves at their inner ends in sub tal axis, said motion'transmitting means rigidly connecting said bars to the lever for rotary movement abouta vertical axis; lever arms rotatable with said bars and swingingly connected to said tracks, said arms being journaled on the door to support and guide the door; and keeper means on said car wall with which said bars are engageable' to forcethe door tightly closed or partly open. I v 7 18. In a door construction for refrigerator cars gage the same' therefrom; means for rotatably supporting said'bars, lever and operating connections for movement in unison about a vertical axis; tracks on said wall; and supporting crank arms pivotally carried on said tracks, journaled on the door, and operatively connected to said bars for rotation therewith.

19. In a door construction for refrigerator cars having a wall member provided with a door opening, the combination with a door adapted to close said opening; of keepers on said wall; means for actuating the door for forcing the same tightly closed and prying the same partly open including top and bottom vertically disposed reciprocating bars engageable with said keepers, and an operating lever connected to said bars for reciprocating the-same, said entire means for actuating being bodily rotatable'about a vertical axis with said'lever; tracks on the car wall; crank arms slidingly and swingingly supported on said tracks; shaft members rotatably supported on the door to which said crank arms are fixed; and

V slidable rotary driving connections between said bars and shafts.

' HENRY FUCHS.

'10 having a wall member provided with a door open- 7

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