US 2218121 A
Description (OCR text may contain errors)
J. PAIEMENT LOADING AND UNLOADING DEVICE Oct. 15, 1940.
2 SheetsLSheet. 1
i Filed June 21, 1939 J. 'PAIEMENT LOADING AND UNLOADING DEVICE Oct. l5, 1940.
Filed June 21, 1939 2 Sheets-Sheet iwf/)fan A Wil! r Hrrmf um idw Patent-ed Oct. 15, 1940 UNITED. STATES PATENT OFFICE Application June 21, 1939, Serial No. 280,364 In Canada April 11, 1939 'l Claims. The present invention pertains to a novel loading and unloading device for trucks, railway cars.
and the like.
The principal 'object of the invention is to provide a power operated-means for expelling the load from one end of the vehicle. This expelling device is in the natureof a wall movable lengthwise of the vehicle. When returned to its original position after unloading, it.can also be used for loading by tying the new load thereto.
More specifically, the movable wall is mounted on rails on the iioor of the vehicle. It is propelled in either direction by a cable and drum system operated by the motor of the vehicle or by any other power unit. 4
The unloading device is particularly useful in connection with a load of loose material such as coal, sand or the like. It is known that such loads frequently spread the side walls ofA the vehicle. In order to maintain the movable Wall always in contact with the side walls regardless Y of their angle under load, the movable wall is made expansible at its vertical edges and is conlil) structedv in such a manner that the expansible parts are always maintained in contact with the side walls.
The invention also includes a novel rail structure on which the movable wall slides. In connection therewith, the rail structure and particularly the rollers thereon are guarded from interference by the material constituting the load.
The invention is fully disclosed by way of example in the following description and the accompanying drawings, in which:
Figure 1 is a fragmentary transverse section of 4the device;v
Figure 2 is a plan section on the line 2-2 of Figure 1;
Figure 3 is a plan section on the line 3-3 oi Figure l;
Figure 4 is an enlarged detail in the same plane as Figure 1;
Figure 5 is a section in the same or a parallel plane, illustrating the track structure without the truck; A
Figure 6 is a side elevation;
Figure '7 is a longitudinal section showing the movable wall in discharging position, and
Figure 8 is a plan view of the winding and pulling mechanism.
Reference to these views will now be made by use of like characters that are employed to designate corresponding parts throughout.
In Figure 6 is shown in side elevation the body o a truck or railway car without the wheel structure, which is omitted since this forms no part of the invention. The body structure includes cross beams I on which the iioor 2 is supported. At the side edges ofthe floor are secured sockets 3 in which are inserted and supported a number of uprights 4. The uprights in turn carry the side walls'which consist of boards 5.
The side walls do not extend downward as far as the iloor 2, as shown in Figures 4 and 5. The lower longitudinal edge of each side wall, which is spaced from the floor, is bevelled at 6 for a purpose that will presently be described.
In each of the spaces between the lower edge of a side wall and the iioor (Figure 5) is a rail consisting of a pair of web members 8 and S engaging each other to form a double thickness and secured to the iioor 2 in any suitable manner. The web 8 has a head or flange Il) on which is mounted a triangular strip II with its oblique face I2 parallel to the bevel edge S. The web 9 has a base I3 on which is mounted a triangular strip I4 spaced from the web proper for a purpose that will presently be described.
Between the side walls is a movable wall I5 mounted and actuated in the manner described below. This wall carries a number of horizontal metal beams I6 and vertical posts I'I at the ends of the beams. The posts Il are of channel shape, as shown in Figures 2 and 3, and a side Wall I8 of each is apertured at I9 to receive the ends of the horizontal beams I6. These ends are anged at 2D at some distance outward from the respective parts I8. Pairs of lugs 2I are extended horizontally from the posts Il, and each such pair carries a pin 22 straddling a beam IB. Each pin is adapted to be engaged by a flange 2U. The posts Il are thus mounted slidably with relation to the beams I5 and bearing against the side walls 5, have a certain amount of play or adjustment according to the angular position 40 taken by the side walls 5 under load. Spring expansion devices 23 may be mounted between the posts Il to maintain them against the side walls. To the outer angc 25. of each post' I is soldered or welded a triangular metal plate 25 engaging the side. walls as shown more clearly in Figure 6.
The end walls I5 are slidably mounted on the rails 8, 9 by means of trucks 26 secured to the respective flanges 2li and plates 25. The trucks are of channel cross section straddling the rails 50 and have an oblique back 2l passing beneath the corresponding bevelled edge E. It will be noted in this connection that the space l between each beveled edge E and the floor is substantially taken up by the rail and truck therein. The inner wall 55 of each truck is extended vertically at 28 to cover the slot completely, while the bevelled edge 6 extends upwardly and outwardly to further prevent escape of loose material beyond the side walls 5 and into the rails. Each truck carries four or any other suitable number of rollers 29 riding on the corresponding base flange I3 between the web 9 and guard I4.
Beneath the iioor 2 is journaled a transverse shaft 30 carrying at each end a double drum 3i. Parallel cables 32 are fastened to each truck 26, passed over pulleys 33 and wound on the drums 3i. Similar cables 34 are extended from the trucks 2B -in the opposite direction and are wound on the remaining sections of the drums. The shaft 30 is driven from the motor or other power unit through suitable gearing 35.
In the use of the device, the-movable wall I5 constitutes one of the end walls, While the opposite end wall (not shown) is of conventional construction and removable. In unloading, the latter Wall is removed, and the shaft 30 started in rotation. Through the drums and cables, the movable wall is propelled towards the open end, thereby discharging the contents through said end. This operation is very satisfactory, especially in connection with such loose material as coal, sand, and the like. The wall I5 also carries a hinged scoop plate 3B which scrapes the door and drops over the end of the oor when nearing the end of the discharge movement, as shown in section in Figure 7. By this means, the complete discharge of the contents is facilitated.
By reversing the shaft 30, the cable 34 returns the movable wall to its original position. This movement may be utilized in loading large objects such as logs, or boxes and the like by tying them to the wall so that they are pulled up on the floor by power. In this operation, a ramp can be attached to the floor at the open end if the load is taken from a level below that of the iioor.
Although a specific embodiment of the invention has been illustrated and described, it will be understood that various alterations in the details of construction may be made Without departing from the scope of the invention, as indicated by the' appended claims.
What I claim is:
1. A loading device comprising, in combination with the floor of a vehicle, rails at the longitudinal edges of said oor, a transverse wall slidably mounted on said rails, power means for moving said Wall in `either direction lengthwise of said floor, side Walls at the longitudinal edges of said floor, said transverse wall having slidable end portions bearing against said side walls, and spring means holdingsaid portions under pressure against said side walls.
2. A loading device comprising, in combination with the floor of a vehicle, rails at the longitudinal edges of said door, side walls'mounted .directly over said rails and spaced slightly therefrom, a truck riding on each rail. and having a portion extending between the rail and the corresponding side wall, and a transverse wall between said side walls and carried by said trucks.
3. A loading device comprising, in combination with the iioor of a vehicle, rails at the longitudinal edges of said floor, side walls mounted directly over said rails and spaced slightly therefrom, a truck riding on each rail and having a portion extending between the rail and the corresponding side wall, a transverse wall between said side walls and carried by said trucks, and a guard carried by each of the last named portions and covering the space in which said portion lies.
4. A loading device comprising, in combination with the door of a vehicle, rails at the longitudinal edges of said oor, side walls mounted directly over said rails and spaced slightly therefrom, a truck riding on each rail and having a portion extending between the rail and the corresponding side wall, and a transverse wall between said side walls and carried by said trucks, said transverse wall having slidable end portions bearing against said side walls.
5. A loading device comprising, in combination with the oor of a vehicle, a transverse Wall mounted on said oor to move lengthwise thereof, power means for moving vsaid wall in either direction lengthwise of said door, side walls at the longitudinal edges of said -iioor, horizontal beams carried by said transverse wall, and vertical posts slidable along said beams at the ends "7 thereof, and spring means normally holding salti posts against said side walls.
6. A loading device comprising,'in combination with the floor and side walls of a vehicle, supporting means mounted externally and lengthwise of said walls, a transverse wall b:- tween said side walls and having parts extending through the latter and slidably mounted on said means, and power means for moving said transverse wall in either direction lengthwise of said oor, said transverse wall having slidable end portions bearing against 'said side walls, and spring means holding said portions under pressure against said side walls.
7. A loading device comprising, in combina` tion with the oor and side walls of a vehicle, supporting means mounted externally and lengthwise of said walls, a transverse wall bctween said side Walls and having parts extending through the latter and slidably mounted on said means, and power means for moving said transverse wall in either direction lengthwise of said floor, horizontal beams carried by said transverse wall, and vertical posts slidable along said beams at the ends thereof and adapted to bear against said side walls.