US1193414A - Refrigerator-car-door-operatilira mechanism - Google Patents

Description

UNITED s'rnjrEs-.ATENT oFECE.

JOHN F. ocoNNoR, or emcAoofiLLINoIsviissrsnongofwnrim migliorer, or

CHICAGO,Y

REERIGERATOR-CAR-DOOR-OPERATING MECIIANISM.

Application filed July 21, 1910. l( `Serial* No. 573,Utvq.

1 o au fic/wm it may concern:

Be it knownthat-1,1' J HNF. VCONNOR,

.a citizen of the United States, residing in Chicago, inthe ,countyfof Cook and State of Illinois, have invented a new and useful Improvement in RefrigeratorCar-DoQr-Op1 erating Mechanism, of which the following is a specification.

My invention relates to improvements in refrigerator car doors and means for .opening and closing same.

In the accompanying drawing forming a part of this,speciication,.Figure 1 is a front elevation of apair of lrefrigerator car doors provided, vwith my improved .operating mechanism. Fig. 2 is a detail plan Aview of the operating lever showing the A,operating `a 'refrigerator *'carf2,- 2 --refrigerator car doors, 3 the linges thereof, 4 the connecting har of the two-.part operating shaft 5, 5, 6', 6 the crank arms at thmev upper and lower ends ofthe operating shaft, 7, 7 the keepers secured to the ear lframe -ortdthe upper and lower sills offthchdoor-,irame, each having an inner jaw 8 against which the crankarms engage for opening the doors Yand an outer Jaw 9 for engagement with the crank arms in forcing the doors closed, 1Q the lrasp lever pivotally secured to the connectingbar of the operating shaft lgy a pin 11 which passes through its. jaws' 13 thestaple member of the door .fastenerizfnd 14 the swingingrlatch or lock on the staplememberll.

III Order t0 Cilllojhe inner. and outer jaws or cam acting faces S, lfLof" the -.upper and lower keepers 7 to properly icooperate with the crank arms 6 ofthe operating 'shaft 5, and thus properly force' the doors tightly closed and start them in their opening movement, it is very essential that the crank arms (i at the upper andrlower ends .of the operati;-V ing shaft 5 should stand at the same angle tothe axis of the' opernting shaftxand great Specification of Letters Patent.

abl A-eac'ii bearing 18 which-is'fsecu'red to one Aofjlth'ef -ltaienten Aug. 1,;11916.

difficulty has heretofore'. been experienced 1n t 1e practical operation of refrigerator ear doors where the operating shaft hasvbeen made in the single piece,^as an'y irregularity in the forging or other manufacturing op- 55 el-ations is liable to cause the crank arms to stand at different angles-so that only one of the crank arms will properly engage itsA keeper. To practically overcome this -diiii` culty, Imake theV operating shaft in three G0 parts, that 1s to say, of two shaftmembe'rs 5 one Vat each end, and jan 'intermediate con# necting bar'or member wvhichis preferably rectangular in cross section, although-itnriay. be made -of any-other suithble shape. Each 65 of the shaft members 5 is preferably a mah.vv

leable iron casting and provided with a slot to receive the connecting barof f the shit" .shaft memher,H The shaft 'members 5 at each end of the v operatingfsheftare pref'en of the same .form andV construction, and Vhas a round:'portion-JIJO. fitQin the doors 2 of the car.

Byv making the operating. shaft three s parts the cost of vmanufacture is materially reduced since'the sha-ft bars 5f, whicl i"are duplicates, may be made'in aimachineof 8.0

much' smaller size ,than that required,` to make an operating sl a'ft'madejin asingle piece. This furtherni rev reduces the-Hoor j space occupied by these' machines. And byv making the shaft in three parts -the same is 85 always .insured-of having th'e"erank arms extending parallel to each other and-in alinement. i

v 1 claYirn--r--VY -f 1;-An operating shaft for refrigerator car 9o doors and the like, sai'dfshaft comprising f two, separate, relativelymshort end-members and an intermediate connecting bartd'the;

ends of which said end-members are rigidlyattached, each of said end-members 'having 85 a crank arm at its outer end.

2. 'An opera-ting shaft for refrigerator car doorsiindA .l-19d," l'kW-slaid shaft comprising two, separate, like, relatively short end-members, and an intermediate connectingbsr 10,0

rectangular in cross Section to the ends of intermediate its crank arin and -ts forked whieli .Suid end-lnembrs are rigidly atend. Cached., each of Suid end-members having :i

l i s .ca'nk arm zit` its outer'end und forked :it lts a O CONNOR i'iner @iid where joined to the end of said `W1tnesse s: ficoanectuig bar, each end member beihgalso EnMUNn Ancoox,

ovided with u rouded'beariug portion 17 vM. MUNmY.

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