US1430378A - Car-door-operating mechanism - Google Patents

Description

W. I. HOSCEIT. CAR DOOR OPERATING IVIECHANISIVI.

V APPLICATION FILED SEPT. l0, |911. 1,430,378-. Pamnted sept. 26, 1922.

2 SHEETS-SHEET I.

W. J. HOSCEIT. CAR DOOR OPERATING MECHANISIVI. 1 APPLICATION FILED SEPT. I0, 191]. l,4:3(\98780 2 SHEETS- SHEET Z.

Patented Sept. 26, 1922.

lie V`-- Patented Sept. 26, 1922..

STAFLS WILLIAM JOSEPH I-IOSCEIT, OF CHICAGO, ILLINOIS.

CAR-DOOR-OPERATING MECI-ANISM.

Application led September 10, 1917. Serial No. 190,505.

i through or beyond the car end sill.

Another object is to provide improveddoor operating mechanism adapted to meet.

the various requirements for successful comA mercial operation.

Generally speaking, these and other objects are accomplished by providing in a railway car, the combination of a moya-bly mounted door, an operating shaft under said door, and means hung on said shaft for operating the latter whereby the door (or doors) may be moved.

The invention is illustrated on the accompanying sheets of drawings in which,

Figure 1 is a fragmentary transverse sec-V tional view of a railway freight car embodying my invention, showing the drop doors in raised or closed position, the section 'being taken in the plane of line 1-1 of Figure 3.;

Figure 2 is a similar sectional View showing the same with the drop doors in their lowered or open position;

VFigure 3 is a fragmentary plan view, parts being vin section, of a railway oar em bodying my invention; andv Figure 4 is a side elevation of the arrangement disclosed in Figure 3.

The various novel features of my invention will be apparent from the following description and drawings, and will be particularly pointed out in the appended claims.

Referring to the figures of the drawing, it will be noted that I have shown a general service freight car. 10 having a centersill 11, intermediate sills 12 and 13 on opposite sides'y thereof, and outer sill members 14 and 15 which support the car floor 16 and car sides 17 and 18. The car sides are reinforced by suitable stakes 19.v As shown, portions of the floor take the form .of metalv sheets 2l), the outer ends of which are mounted upon spacing members 21 mounted on the side sills 14 and 15. However, it will be appreciated that the floor may be if wood throughout.

Drop doors 22 and 23 are pivotallyconneet-ed by suitable hinges 24 and 25, respectively, to the intermediate sills 12 and 13 or the floor 16 or to bot-h. These drop doors 22 and 23 are arranged toV swing downwardly and inwardly toward the center of the car to permit the load to be dumped. It will bey understood that there are a plurality of these doors on each side of the center of the car. Normally, these doors are held in raised or closed position, by rolling shafts 26 which. at'alltimes are located under the doors. These shafts 26 extend longitudinally with respect to the car, and by means of my invention it is not necessary that these shafts should extend to, through or beyond the end sills 27 of the car.

The door operating mechanisms on both sides of the car are the same, so the operating mechanism on one'side only will be referred topartioularly in the description.

As shown in Figure 1 of the drawings,

the doors 22 are in raised or closed position and are held in such position by the operating shaft 26 which-is retained in its elevated position by resting upon the fioor 28 of a recess 29, formed in a casting or forging 30, which is suitably supported by and between the intermediate sill 12 and side sill 14, said casting having a relatively large central opening 31 to permit theoperating shaft 26 to roll upon the inclined guide -portion 32 and horizontal guide portion 33 of the lower part ofthe casting 30. This casting also `is provided with a laterally extendingl ratchet portion 34. which is adapted to cooperate with a pawl 35 loosely mounted upon the operating shaft 26, the function of which pawl under certain conditions 4is to prevent a backward or inward movement of the shaft 26 when so desired and thereby also prevent accidental opening of the door 22.

In Aconnection with the operation of the shaft 26 the latter is provided with a sheave 36 rigidly mounted upon the shaft 26 and around which a chain 37 passes, one end of the `chain being secured to .the sheave and the other end of `the chain being secured to the intermediate sill i2. T he shaft 26 also is provided with another sheave around which passes a chain 3% one end of which chain is anchored to the sheave 38 andv the other end of which is anchored to the side sill 14. This shaft is also pY )vided with a squared portion to which is secured ratchet wheel 4G which adapted to be actuated in opposite directions hy two pawls 4l and 42. These pawls pivot-ally mounted between the side memhers of a casting 44, which casting is loosely mounted or hung upon the operatino7 sl'iaft and is movable transversely tl ewith. llivoted between the side members 45% of the casting at the lower end thereof is a keeper or lock member 4:37 the 'function of which is to hold either one or the other of the pawls 4l and 42 out of engagement with the ratchet wheel 40.

As shown in the left hand portion of Figure l, it will be noted that the triangular keeper is swung about its pivotal point 4G and under the weighted arm of the pawl 41 for retaining the other arm of said pawl out of engagement with the ratchet wheel 40. lUnder these conditions the upper arm of the pawl 42 is caused to move into enA4 gagement with the ratchet wheel 40, due to the excess weight of the other or lower ai-in of the pawl 42. As shown, thedoor and. as a matter of fact, all of the doors on that side of the car, are held in raised position by the shaft 26 upon which said doors rest, and the shaft occupies the recess portion in the casting 8O with the safety pawl engaging one of the teeth of the ratchet por tion 32. lf it is desired to open the drop doors on the loft hand side of th car. it is merely necessary to raise the pawl 42 out of engagement with the ratchet wheel and swing the lock 45 from its left hand position where it is supported by a stop 47 the casting to its right hand position where it rests upon a stop 48 and under the weighted arm of the pawl Bv means of this swinging movementof the lock 45 the pawl 42 will be held out of engagement with the ratchet wheel 40 and the pawl 4lY will )e permitted to fall into gement with said ratchet wheel 40. To actuate the shaft to the right a suitable bar is passed into t-he circular opening 49 one side of the easting 44, and the casting is thereby given an oscillatory movement to rotate the operating shaft 25 in a clockwise direction causing` the chain 39 to be unwound from its sheave 38 and the chain 37 to he wound upon its sheave 36, it being umlerstood that the pawl 35 is first swunginto a position so that it will not actively engage its ratchet 34. rllhis causes the operating haft 26 to move bodily to the iight or to ard the middle of the car. ssoon as the shaft is moved out of the recess 297 said shaft will roll down the l ith inclined portion 32 of the casting 30 and along the horizontal portion thereof. As

the operating shaft mores in this manner the doors resting thereon swing downwardly about their pivotal points into an open position whereupon the load in the cai' may be dumped.

The casting portion 50 against whic i .r of said doors rest after they have opened a predetermined amount. lf it desired that the different doors be opened variable amounts appropriate stops at .f'arious points may be provided. ln Figure 2 the doors 22 on the left hand side of the car are shown in open position and the operating parts in a corresponding position. To raise or close the doork 22, it is merely necessary to throw the safety pawl back into position where it may cooperate with the ratchet 34 and swing the triangular locl 45 to the left after faising the pawl 4l whereupon the pawl 4l will be held out of engagement with the ratchet wheel 40 and the other pawl 42 will be permitted to fall into engagement with said ratchet wheel. 'lhe casting 44 may .now be oscillated about the operating shaft 26 to actuate the shaft in a counterclockwise direction. fis a result of this cooperation between the pawl 42 and the ratchet wheel 4th the chain 37 will be unwound from its sheave 36 and the chain 39 will be wound upon its sheave, the operating shaft 26 caused to move to the left over the surfaces 38 and 32 and into the recess 29 of the casting 30 to raise or close the dump doors 22. the safety dog during the moveof the shaft at all times preventing an accidental backward movement of the shaft 26. The operating mechanism for the doors on the right hand side of the car is a duplicate of the arrangement just described for the doors on the left hand side of the car. By means of this simple arrangement the dump doors may be controlled and operated in a Yvery efhcient manner.

lt is apparent that there may be various rnodications of the` arrangement herein particularly shownand described, and it is my intention to cover all such modifications which do not involve a departure from the spirit and scope of the invention as set forth in the following claims.

l claim:

l. ln a railway car, the combination of a movably mounted door7 an operating shaft for supporting the door, a ratchet wheel mounted on said shaft, a member pivotally mounted on said shaft7 pawls pivotally mounted on said member and cooperating with the said ratchet to operate the shaft for movement of said door, and means for holding one of said pawls out of engagement with said ratchet wheel.

2. ln a railway car, the combination of a is provided. with a stop the doors or certain vioo movably mounted door7 a shaft for supporting the door, a ratchet mounted on said shaft, a member pivoted on said shaft, pavvls pivotally connected to said member and operatively associated With said ratchet Jfor operating the shalt whereby there may be a movement of the door, and a look member for holding one ot said paWls out of engagement with said ratchet Wheel when the other pawl is in engagement therewith.

3. A door operating mechanism for railway ears, including a laterally movable shaft, a member hung from said shaft, means carried by said member for transmitting movement from said member to said shaft,

and means pivoted on said member whereby said transmitting means may be held in an inoperative position.

4C. A door operating mechanism for rail- Way cars, including a laterally movable shaft, a a member hung from said shaft, a plurality of means carried by said member for transmitting movement from said member to said shaft to move said shaft in different direc-tions, and means pivoted on said member whereby said transmitting means may be selectively held in an inoperative position.

Signed at Chicago7 Cook County, Illinois, this 28th day of August, 1917.

WILLIAM JOSEPH HCSCET.

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