US1412316A

US1412316A - Means for unloading cars

Info

Publication number: US1412316A
Application number: US358791A
Authority: US
Inventors: Archie R Sackett
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-02-14
Filing date: 1920-02-14
Publication date: 1922-04-11
Anticipated expiration: 1939-04-11

Description

A. R. SACKETT. MEANS FOR UNLOADING CARS. APPLICATION FILED. FEB.14,1920- 1,41 2,3 1 6, Patented Apr. 11; 1922 INVENTOR,

' ATTORNEY.

- UNITED STATES PATENT 1 OFFICE.

ARCHIE R. SACKETT, or sAn rnnno, CALIFORNIA.

, To alltbhom it mag concern:

Be it known that I, ARCHIE R. SAoKE'rT, a citizen of the United. States, residing at San Pedro, in the county of Los Angeles and State of California, have invented new and useful Improvements in Means for Unload ifng Cars, of which the following is a specification.

This invention relates to improved means for unloading freight cars and the like.

With this device] it Possible to unload freight within a minimum of time for the amount of'labor expended. Hithertofore it has been necessary to employa crew consisting of as many as a dozen men to .unload any form of box or fiatcar, but with the present invention, three men at the most, are

required to successfully handle any amount of freight and to operate, the same.

Essentially the invention consists in the novel arrangement and combination of-several devices, namely,a hydraulic turn-table thatv may be raised or lowered to any desired height; a load-receiving platform detachably mounted upon said turn-table, grab hooks attachedto a draft device; and anove'rhead conveyer for transmitting the load-receiving platform to its destination for purposes of loading or unloading material thereon.

I In actual practice freight cars are run upon a siding next to a warehouse and the hydraulic turn-table is brought into position before the open door of a box car .or approximately the center side ofa fiat car. One man takes the grab hooks to which are attached the draft device and entering the car, if it is abox car, passes the grab hooks over the different articles of freight to be removed therefromi Another man operates power means that pulls the draft device.

' Vhen the word given that all is ready,

' the power meansis turned on, the grab hooks gripping the freight pull same through the open door of the freight car and onto the load-receiving platform which is adjacent to the flat car or boxcar. The load is drawn over the load-receiving platform. until the word is given to shut off the power." This operation is repeated until the, platform is completely loaded, at which time a man operating the overhead conveyerbrings same FORUNLOADING- CARS.

Specification of Letters Patent. Patented Apr. 11, 1922. I 7 Application filed'February 14, 1 920. Serial No. 358,791.

into position, and the conveyer straps are fastened to the load-receiving platform after which the hydraulic turn-table is lowered, leaving the load-receiving platform suspended in mid-air attached to the conveyer, and the conveyer with its load moved under power to another part of the warehouse.

V lVith the above and other objects in View, the invention consists in the novel and useful provision, formation, construction, combinatlon, association and inter-relation of parts, members and features, all as disclosed'in the accompanying drawing, described in the followlng specification, and finally defined. in claims.

In the drawing:

Figure 1 is a fragmentary side elevation partly sectioned of the improved means for unloading cars;

Figure 2 is a plan view of the showing in Figure 1; a

Figure 3 is an end elevation of overhead conveyer means; and,

Figure lis a fragmentary perspective view of grab hook.

Corresponding parts in all the figures are designated by the same reference characters.

lteferring to the drawing, C designates a freight car drawn upon a siding before a warehouse, and A designates a turn-table having a platform 1 composed of two discs, 2 and 3, spaced from each other by roller means The upper disc 2 is free to rotate in a horizontal plane over the lower disc 3, which disc is fixedly mounted up ona central hydraulic shaft 5 of the commonly known construction. The shaft 5 may be raised or lowered to any desired position by pressure means conveyed to same through the pipe 6 and controlled by a double-way cook or hydraulic shut-off 7.

The loading platform 8 is detachably held posed therein. The longitudinal sides 11 and 12 are likewise provided with downwardly-and outwardly disposed hooks 14:.

To remove the freight, grab hooks 15 and 16 are provided, each of which'comprises hooks 17 arranged in a circular manner on the end of a shank 18, which terminates in an eye 19 to which is attached the draft device. See Figures 2 and 4. Thedraft device includes

cables

20 and 21, one for each grabhook, which cables are passed over the roller members 13 of the loading platform 8 to

drums

22 and 23. These drums are mounted on the opposite ends of a jack shaft 24lfwhich jack shaft is held in position by

bearings

25 and 26 and driven by a power pulley 27 fixedly mounted on same.

The overhead conveyer B includes a pair of spaced grooved wheels 28 and 29 journaled in

suitable bearings

30 and 31 between parallel

side plate members

32 and 33. One of said grooved wheels 29 is driven by a suitable power means 34 through a train of gears 35. As is indicated, the overhead conveyer is electrically driven, one path of electrical current being through a rail 36, and the other path through an overhead trolley wire 37. To conduct the current from the overhead trolley wire 37 a trolley 38 is mounted. upon the side plate members 32 or 33'of said conveyer.

The overhead conveyer B is likewise provided with underslung supporting

hooks

39 and 40 bent as shown in Figure 3 so that the lowest angled portion of same is disposed in a'plane of the center of gravity of the overhead conveyer.

In order to use the overhead conveyer,

means such as load supporting cables .41-

and'4l2 having rings a3 and 1 1- attached at each end thereof and one ring at the median portion thereof, are provided. The rings 4:5 are passed over the

hooks

39 and 40 as shown in Figures 1 and 3, and the lower rings a3 and l are passed under the hooks 1a on the load receiving platfolin. ()f course this is not done until the load receiving platform 8 is filled with freight, after which the lugs 9 are released, the loadreceiving platform freed from the turntable disc 2, the hydraulic pressure relieved, and the turn-table lowered, at which time the load is ready to be conveyed to its destination to any part of the warehouse. Handles 16 are journaled at 47 to the platform 8. Upward movement of the handles will tilt the platform and aid in removing the load from same. 7 I It is obvious that many changes and moditications may be made in practicing the foregoing invention, all without departing from the spirit of same.

What I claim and desire to secure by Letters'Patent is: p V

1. The herein described means for unloadng freight cars, including a turn-table provided with means for adjusting the same as to height, a loading platform detachably mounted upon said turn-table, a draft device adapted to be extended over said platform, a grab hook joined to one end of said draftdevice, a shaft, and a drum mounted ed upon the upper ,disc of the turn-table platform, a draft device adapted tobe ex-' tended over said loading platform, a grab hook joined to one end of said draft device, a shaft, and a drum mounted uponsaid shaft and connected with the opposite end of the draft device and upon which same may be wound or unwound.

3. The herein described means for unloading freight cars including a turn-table platform having upper and lower discs, said lower disc being fixedly mounted on a hy-V draulic controlled shaft whereby the turntable platform maybe raised or lowered, there being roller members interposed between said upper and lower discs whereby the discs may be turned with respect to each 0ther, a loading platform detachably carried by the turn-table platform, a draft device adapted to be extended over said load ing platform, a grab hookjoined to one end of said draft device, a shaft, and a drum mounted on said shaft and connected with the opposite end of the draft device and upon which same may be wound or unwound. i

4. The herein described means for unloading freight cars, including a turn-table, a loading platform detachably mounted upon Said turn-table, a draft device adapted to be extended over said platform, a grabihook joined to one end of said draft device, a jack shaft, and a drum mounted upon said jack shaft and connectedwith the'opposite end of the draft devicev and upon which same may be wound or unwound said loading platform comprising a :bed plate the longitudinalparallel side's-of which are bent at right angles to said bed plate, and roller members transversely disposed'between said parallel bent portions to prevent friction when drawing freight over the loading plat- 7 form. r 5. The herein described means for unloading freight cars, including aturn-table, a loading platform detachably mounted on said turn-table, roller members mounted on said platform, a draft device passing over said-rollers," grab hooks attached to one end of said draft device, a jack shaft'and-drums mounted upon said jack shaft and connected In testimony whereof, I have signed my with the other end of said draft device, name to this specification in the presence of whereby same may be wound or unwound, two subscribing witnesses.

and an overhead conveyer, means being pro- ARCHIE R. SACKETT. vided whereby said conveyer and said load- \Vitnesses: ing platform may be joined, so that the EDNA TURNER,

latter may be carried to its destination. J. CALVIN BROWN.