US716075A - Dumping-car. - Google Patents

Description

No. 7|6,u75. 'Patented Dec. la, |902'. o. w. MEI-sanas.

DUMPING CAB.

(Apphcatmn led. Sept. 8, 1902.)

3 Sheets-Shee 3.

- UNITED Es OTTO W. MEISSNER, OF CHICAGO, ILLINOISpASSIGrNOR TO THE RODGER BALLAST CAR COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

oUMPlNe-CAR.

SPECIFICATION forming part of Letters Patent No. 716,075, dated December 16, 1902.

Application liled September 8,1902. Serial No. 122,526. (No model.) A

to with Winding-shaft and chain mechanism connected therewith, Winding-lever mechanism, means for locking the doors in closed position, and means for limiting and regulating the speed at which such doors are opened I and stopping them at any desired position.

It relates particularly to the means for closing and'controlling the dumping-doors, locking them in closed position, and stopping them at any desired point.

for closing and controlling theopening of the dumping-doors and for stopping them at any desired point, whereby slamming of the doors,

to the injury of the car, is avoided and the` depositing of the load at a greater or less dis-` tance from the center of the car, as desired, is permitted.

Myinvention consists principally in a dump- 3o ing-car having dumping-doors and a winding-V shaft provided with chain mechanism connected with each of such dumping-doors, ratchet-wheel mechanismmounted upon such'- shaft, a Winding-lever, and pallet-lever mechanism in engagement with the ratchet-Wheel'.

mechanism of the shaftfor regnlatingand controlling the rotation ofthe shaft, and thereby the dumping-door.

The invention consists, further, in a dumpi 4o lng-car having dum ping-doors, winding-shaft i and chain mechanism in connection withsuch dumping-doors, ratchet-wheel mechanism uponsuch winding-shafts, pallet-lever mechanism in engagement with the ratchet- Wheels of the shaft andprovidedwith a detentlever arm, and means for lockingthe detentlever arm, and thereby the winding-shaft, so

as to hold the door in any desired position.

Theinvention consists, further, and finally,

5o in the features, combinations, and details of construction herein described and claimed.

The principal objectot the invention is to' provide a dumping-car having suitable means In the accompanying drawings, Figure lis a broken side elevation of a car constructed in accordance with my improvements; Fig. 2, an end View in sectional elevation, taken on line 2 of Fig. l, looking in the direction of the arrow; Fig. 3, a broken end View showing the winding and lever mechanism; Fig. 4, a detail plan view showing the ratchet-wheel mechanism and winding and detent-lever mechanism; and Fig. 5 a sectional detail plan view taken on line 5 of Fig. 3.

In constructing a dumping-car in accordance with my improvements I provide a carframe o., consisting of upright side frame portions l), end frame portions c, resting upon longitudinal sills d and e and transverse sills f, and provided with a bottom portion g, whichV may be inclined downward and outward from the center of the car, as shown in Fig. 2. At each end of the lower edges 7L of the inclined bottom is mounted a swinging dumping-door t', which is preferably hinged to the longitudinal sills e by means of hinges In order-to provide means for closing such doors and holding them in closed position, winding-shafts 7c are rotatably mounted in the car-frame above the outer edges of such doors and provided with chains Z, Wound thereon and connected with the swinging ends m of the dumping-door by means of eyebolts n and nuts o. To protect the windingshaft and chain mechanism and keep it at 'all times in condition to act freely and efliciently, inner boXings p are provided, which extend along the sides of the car and form a separating-partition between the windingshaf't and chain mechanism and the space for containing the load. These boxings are braced and held rigidly in position by means 'of metallic braces q and r.

It is very desirable in a dumping-car that means be provided for regulating and gov- "erning the speed at which the dumping-doors `are opened and for stopping suchdoors at any desired point, thus enabling the loadto be dumped at a considerable distance from the center of the car by stopping the doorat the desired point of incline or near to the center by permitting the door to swing farther down, as circumstances may require. In order to accomplish these purposes, I `pro- ICO vide a pair of ratchet-wheels s and t, which are mounted upon the projecting ends u of the winding-shafts and in fixed relation to such shaft. 1 A winding-lever c is rotatably mounted upon each shaft between such ratchet-wheels and provided with a pawl w,

\ adapted to engage the teeth of the ratchetwheel t in whatever position such windinglever arm may be. By this arrangement it will be readily seen that the winding-lever, and thereby the winding-shaft, may be operated at any desired point in the path of rotation of such lever, so that it may readily accommodate itself to the position of the open ator, whether he be upon the 4ground or upon the car. Pallet-levers l and 2 are provided, having pallets 3 and 4, adapted to alternately engage the teeth of the ratchet-wheel s. These pallet-levers are vibratingly mounted upon the end frame of the car upon pivots 5 by means of clips 6, which are rigidly attached to the end of the car by meansof bolts 7 or in any ordinary and well-known manner. A

detent-lever arm 8, which I make, preferably,

integral with the pallet-levers, extends outward therefrom, and a guiding-clip 9 is also provided, within which such detent-lever arm is slidingly and Vibratingly mounted. A locking-pawl 10 is rotatably mounted within such guiding-clip upon a pivot ll, which may also serve to hold one end of the clip in position, the opposite end being held in position by means of a bolt l2 or in any ordinary and well-known manner. The locking-pawl is provided with a perforation 13, by means of which it may be readily moved into and out of locking position, and is also provided with a cam-surface 14, adapted to contact the detent-lever arm .when in locked position and be thrown up and out of contact therewith when such lever-arm is released.

The teeth of the ratchet-wheel s are pitched at such an incline that the pallets wiil readily slide or vibrate into and out of their path of rotation alternately as the winding-shaft is rotated in the direction necessary to wind up the chain and close the door, and thepivotal point of the pallet-lever mechanism is 1ocated in such relationto the ratchet-wheel that the weight of;` the detent-lever arm will automatically throw the lower pallet into contact with the ratchet-teeth at such an angle as' to lock the shaft and prevent the unwinding of the chain and the opening of the door. By raising the arm the opposite pallet is thrown into and the lower one out of contact with the ratchet-teeth, and so on alternately. By this arrangement the detent-lever arm may be readily locked into position by the locking-pawl when it is desired to hold the door closed, and the locking pawl being thrown out of contact therewith the lever-arm may be vibrated to permit the gradual opening of the door. The door may be stopped in any desired position by merely stopping the vibration of the lever-arm, and when the chain is being wound up to close the door the weight of the detent-lever arm will automatically throw the lower pallet into locking position and prevent the unwinding of the chain and the opening of the door.

I claimy l. In a dumping-car, the combination of a dumping-door,a rotatable shaft provided with means for connecting it with the dumpingdoor, ratchet-wheel mechanism for such shaft, and pallet-lever mechanism in engagement with the ratchet-wheel mechanism for stopping the dumping-door in any desired position and regulating'the opening thereof, substantially as described.

2. In a dumping-car, the combination of a dumping-door, a winding-shaft provided with chain mechanism connected withthe dumping-door, ratchet-wheel mechanism mounted upon such shaft, mechanism for winding such shaft, and pallet-lever mechanism in engagement with the ratchet-wheel mechanism of the shaft, substantially as described.

3. In a dumping-car, the combination of a dumping-door, a winding-shaft provided with chain mechanism connected with the dumping-door, ratchet-wheel mechanism mounted upon such shaft, a winding-lever, pallet-lever mechanism vibratingly mounted in engagement with the ratchet-wheel mechanism of the shaft and provided with an integral detent-lever arm, and means for locking and releasing such detent-lever arm and thereby the shaft and dumping-door, substantially as described.

4. In a dumping-car, the combination of a pair of dumping-doors, a winding-shaft for each of such doors providedwith chain mechanism wound upon suchshaft and connected with the dumping-door, a pair of ratchetwheels mounted upon the end of each winding-shaft, a winding-lever rotatably mounted upon each of such shafts and provided with a pawl in operative engagement with one of the ratchet-wheels, a pallet-lever vibratingly mounted in engagement with the other ratchet-wheel and provided with an integral detent-lever arm, and means for locking such detent-lever-arm and thereby its shaft and dumping-door, substantially as described.

5. In a dumping-car, the combination of a plurality of dumping-doors, winding-shafts provided with chain mechanism connected with such dumping-doors, a pair of ratchetwheels mounted upon the end of each winding-shaft, a winding-lever arm for each of such shafts, pallet-lever mechanism vibratingly mounted adjacent to such shaft in engagement with one of the ratchet-wheels and provided with an integral detent-lever arm, and a locking-pawl for locking and releasing such detent-lever arm, substantially as described.

OTTO W. MEISSNER.

Witnesses:

HARRY I. CROMER, A. L. SAVOIE.

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