US1023164A - Refrigerator-car door and means for operating same. - Google Patents

Description

JJF. OGONNOR.

REFRIGERATOR OARDOOB, AND MEANS FOR OPERATING SAME.

APP LIOATI 0N FILED MAY 26, 1910.

1,023,164. Patented Apr. 16, 1912. F. 1 2 $HEETSSHEET 1.

J. F. OGONNOR.

REFRIGERATOR GAR DOOR AND MEkNS FOR OPERATING SAME APPLICATION FILED MAY 26, 1910.

1,023, 1 64; Patented Apr. 16, 1912.

2 SHEETS-8H12ET 2.

ing to cause the packing to JOHN F. OCONNOR, OF CHICAGO, ILLINOIS, ASSIGNOR TO WILLIAM H. MINER, OF CHICAGO, ILLINOIS.

REFRIGERATOR-CAR DOOR AND, MEANS FOR OPERATING SAME.

Specification of Letters Patent.

Patented Apr. 16, 1912.

Application filed May 26, 1910. Serial No. 563,544.

. are provided with a yielding or compressible packing backed up by springs mounted in suitable recesses formed either in the doors or door frame, and which packing, is compressed by the closing of the doors to cause them to fit very tightly and produce'etfec- I tive'heat insulation, the meet-ing faces of the doors with each other or with the surrounding door frame being beveled or wedgbe compressedby the door closing operation.

Heretofore in practical operation, great difiiculty has been experienced, both in forcing the doors snugly closed so as to properly compress the packing betweenthe meeting or surrounding faces of the doors and door frame, and also in forcing-the doors open, and, especially in cases where from exposure to wet or moisture either from the inside of the refrigerator car or from the outside, the door frame or doors become swollen.

And frequently in opening the doors they v are .very greatly injured by prying with crow-bars or hammering with sledges.

The object of my invention is to provide and combine with the doors an improved construction of operating mechanism therefor which will serve not only to forcibly close the doors under great pressure at the final or closing movement when the doors are forced home, but also serve at the initial port-ion of the opening movement to apply a very great power or leverage in starting the doors open,

however tightly the doors may stick or however greatly the packing may be compressed between the beveled or wedging meeting faces of the doors with each other'or with the door frame, in order that the doors may be both opened and closed without injury or hammering, and which will enable the compressible packing to be always so tightly compressed as to afford effective heat insulation, and in which at the same time the mechanism employed for forcibly closing frame.

the doors and for forcibly prying them open may'be mounted and practically combined with the-doors and door frame with but relatively very slight projection beyond the outside face of the car or of the door frame.

My invention consists in the means I employ to practically accomplish this object I or result as herein shown and described and more particularly specified in the claims.

In the accompanying drawing forming a part of this specification, Figure 1 is a side elevation of refrigerator carrdoors embody ing my invention, and showing a portion of the upright side wall of the car. Fig. 2 is a vertical, cross section on line 2 -2 of'Fig. 1. Figs. 3 and 4 are horizontalsections on lines 3-3 and respectively of'Fig. 2 and Fig. 5 is a detail horizontal section, similar to Fig. 4, showing the parts in a different position.

In the drawing, 1 represents a portion of the upright side wall of a refrigerator car, 2 the uprights of the door frame, 3, the sill and 4 the lintel or upper horizontal member of the door frame.

5, 5 are refrigerator car doors connected by hinges 6, 7 at their outer edges with the uprights of'the door frame, and having beveled or meeting wedging faces 8 for engage ment with each other and'for engagement with the corresponding wedging faces 9 of the door frame. At the meeting faces of the doors with each other and with the door frame, ayielding or compressible packing 10 is employed, mounted in a suitable packing recess 11, and preferably having a rigid supporting strip 12, backed up by springs 13. The packing 10 at the outer faces of the doors which meet or close. together is formed in one of the doors. At the meeting faceu'of the doors and door frame, the packing 'recess is preferably formed in the door The doors are preferably furnished at their lower end faces with a 'metal wear plate 14 secured to the lower wedging face I of the doors. g

The outermost of the two doors is provided near its free upright edge with a longitudinal channel 15 to receive the operating shaft 16 flush within its outer face, and also with recesses or sockets 17 to receive the bearings 1.8, 19 in which the operating shaft is journaled, said bearings being secured to the door by bolts 20, the nuts of which fit in slots or-recesses .21 formed in the door for that purpose. The operating shaft 16 and its bearings, 18, 19, thus project very slightly, if at all, beyond the outer face or line of the doors or door frame. The operating shaft.

the door closed under great pressure when the operating shaft is turned in the direction to force the doors closed. Each of the keepers 23 also has a-coeperating jaw 26, having a wedge 'or operating face 27 which engages the crank arm 22 of the operating shaft, and serves to force the door open when the operating shaft is turned in direction to open the door, a very powerful leverage being exerted at the initial portion of the opening movement, owing to the nearly tangential position or arrangement of the engaging or cooperating faces of. the jaws and crank arm or the wrist pin port-ion of the latter. And for the same reason, the doors are forced closed under very powerful leverage and the packing forcibly compressed by reason of the interengaging wedge faces of the doors with each other and with thedoorframe as the crank'arm of the operating shaft or the wrist pin portion thereof approaches the tangentialrelation to the face of the outer jaw 24. when the operating shaft is turned sufiiciently to completely close the doors.

The operating shaft 16 is furnished with an operating lever 28 extending from the crank arm portion 22 of'the operating. shaft below the doors and having an upward bend '29 therein to bring the operating shaft against the outer face of the inner'door to enable the same to be fastened or locked thereto by the interengaging door lever fastener devices 30 and 31 on the door and lever respectively.

As in my 1nvention,theupright operating shaft and its bearings are mounted in channels or recesses provided for their reception in the outer face of the door, and asthe crank arms at the upper and lower endsof the operating shaft and the coeperating keepers project only very slightly beyond the outer face of thedoor frame, and as the operating lever projects or extends from the crank arm .below the doors and provided with an upward bend to bring it against the outer face of the inner door, the door oper-. ating mechanism, as a whole, has substantially no external projection on the outside of the car, while at the same time provision is made for exerting a very powerful pressure or leverage in both closing and opening the doors, since the axis of the' shaft is brought well in toward the middle of the.

' the edges of the doors. pears from Figs. 3, 4 and 5 of the drawings.

thickness of the heavy door the thrust-of the shaft is exerted within the outerface of the door and as near as possible to a perpendicular direction from the bearing faces of the springpressed yielding packing that seals This particularly ap- By mounting the operating shafts in the manner which I have shown flush with the outer surface of therefrigerator car doors and securing the operating lever at a point below the lower edge of the car door and extending the same upwardly so that it lies flat against the ear door whenever the door is closed or opened, I am enabled to mount the same on refrigerator cars which are substantially four inches wider than has been customary in refrigerator cars employing an operating shaft of the general 'type which I have shown. Hitherto in the common construction of refrigerator cars employing an operating shaft project-ing beyond the outer face of the door,

the door has been held away from the sides of thecar whenever the door has been swung back, and has thus been liable to be engaged by projections on station platformsor adjacent cars, thereby ripping the operating shafts or the doors from the cars.

As the.lever 28 extends from the crank arm '22 beyond the outer faces of the doors' and door frame and below the lower ends of thezdoors, the lever may be swung in opening and closing the doors through an arc of 180 degrees, as will be readily un- 'derstood from Figs. 1, 2, 4 and 5 of the drawing, thus enabling the crank arms or wrist pins thereof and the interengaging jaws of the keepers to act effectively in opening and closing the doors.

I claim 1. The combination with a door, of an op erating shaft flush with the outer face of the door and provided with a crank arm at its lower end, a keeper engaging said crank arm and a lever extending from said crank arm and having a portion adapted to'fit" I against the outer face of the door and lie flat thereagainst when the door is in its open position, substantially as specified.

2. The combination with a door, of an op ,erating shaft having its axis located below the outer face of the door, and provided with a crank arm at its lower end, a keeper engaging said crank arm, and an operatlng lever extending from said crank and adapted to fit against the outer face of the lever comprising an upwardly extending door, said operating shaft being adaptedto be given a half turn by said lever, said,

port-ion adapted to lie flat against the door when the latter is swung back.

3. The combination with a cardoor frame, of a 'door hinged thereto, and. provided on its outer face with aehannel, an operating Y jecting beyond the upper and lower ends 0% shaft located Within said channel and provided with crank arms at its extremities pro-,

horizontal and upwardly extending portions, the upwardly extending portion being adapt ed to lie flat against the door when swung back thereagainst, and the crank arms and horizontal portion of the let '61 assuming positions below the level of said outer face of the door when the lever is swung back against the door, whereby the door is adapt- 15 ed to lie snugly against the car side, s',ubstantially as and for the purpose described.

" JOHN F. OCONNOR.

Witnesses H. M. NIUNDAY, PEARL ABRAMS.

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