US417239A - Dumping-car - Google Patents

Description

X110 Model.)

2 Shets-Sheet 1. E. E. DWIGHT.

DUMPING OAR.

No. 417,239. Patented Dec.- 17, 1889.

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N, PETERS PhclmLiihagnphur. Washington, D. C.

UNITED STATES PATENT OFFICE.

EDVARD E. DVIGHT, OF TOLEDO, Ol'l'IO.

DUMPING-CAR.

SPECIFICATION forming part of Letters Patent No. 417,239, dated December 17, 1889.

Application filed June 6,1889. fielial No. 313,391. (No model.)

To all whom it may concern:

Be it known that I, EDWARD E. DWIGHT, a citizen of the United States, residing at Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Dumping-Oars; and I do hereby declare that the following is afull, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings,

and to the letters of reference marked thereon, which form part of this specification.

My invention relates to dumping'cars of that character in which the load is discharged at the side of the car.

The object of the invention is to construct a car with a normally fiat or horizontal bottom and sides hinged to close at right angles thereto, whereby to form a rectangular receptacle for the load, with means by which the longitudinal center of the bottom may be elevated to cause an inclination to the bottom from either side of the center, to cause the load to descend by gravity through an opening upon either side, caused by the outward swing of the hinged sides.

The invention consists in the parts and combination of parts hereinafter described, and pointed out in the claims.

In the drawings, Figure 1 is a longitudinal vertical section of a portion of a car. Fig. 2 is a plan view of a sufficient portion of a car to illustrate the power mechanism for raising the floor of the same. Fig. 3 is a plan View of the worm-wheel, bedplate, and anti-friction rollers journaled therein. Fig. 4 is a trans "verse section of the car, showing the floor in horizontal position upon the sills of the car; and Fig. 5 is a like View showing the floor elevated to the highest point and the doors swung outwardly to allow the load to discharge.

I-leretofore in the branch of the art to which my invention belongs it has been found impossible to construct the floor of the car horizontal to allow of the car being used as a dumping-car or as an ordinary freight-car, for the reason that no power has been found adequate to raise the loaded floor or bottom from a horizontal to a sufficient incline to cause the load to discharge by gravity; hence all attempts at a construction of this character have failed of success.

In the construction herein described there is employed a series of vertical screws so' connected with the floor and power mechanism that it is convenient and easy to raise the largest load within the car, and readily cause the same to discharge at the side of the car.

a designates a central beam running longitudinally of and through the center of the car, and to which is secured the two sections D of the floor by means of hinges b, secured to the beam a and to the floor-sections.

A and B designate longitudinal floor-sills to which the transverse flooring is secured, and are so arranged that when the sections of floor rest upon the sills of the car they will register between the same.

0 designates a screw running through an internally -threaded spirallygeared nut 71,, sustained below the sills P of the car upon a bed-plate S, sustained upon timbers O, secured to the sills P.

The bed-plate is formed with an annular channel concentric to the threaded opening, into which is journaled a series of conical anti-friction rollers r, which project. circunr ferentially above the channel somewhat more than one-half their diameter, and project into a corresponding annular channel in the lower face of nut h, whereby to reduce the friction upon nut h to a minimum when being revolved.

g designates a worm-gear intermeshing with nut h, worm g being secured upon. shaft f, upon which is secured at the opposite end a bevel-gear c, which inter-meshes with a bevelgear e" upon a shaft e, extending longitudinally of the car, the ends thereof projecting beyond the end sill of the car sufficiently to allow a crank (Z and pawl and ratchet to be secured thereon, by which means screw C is raised to cause the floor of the car to incline in each direction from the center and afterward lowered to rest horizontally upon the base-timbers of the car, the screw being prevented from turning, and also firmly connected with the beam a, by reason of the upper squared end '2; being inserted into a squared socket J in a plate secured to the beam. NVhen the screw is in its lowest position, the lower portion is inclosed by a tube or'case n, secured below bed-plate S.

K designates a covering of wood or metal to prevent dirt, tc, from lodging between the edges of the floor-sections and central beam.

tdesignates guides or ways secured upon the inner sides of the ends of the car, into which the ends of the beam to project to guide the same vertically when being raised or lowered. To complete the inclination of the bottom when raised to dump the load, there are secured planks it upon the two outer longitudinal sills w and 00, respectively, of each side of the car, these planks being inclined coincidently with the sections D of the floor when raised and in a position for the lower portion of each section to rest thereon, by which means the floor is continued to the edge of the car.

L designates the side doors of the car, of which there may be any desired number, and are hinged at the top to the top rails m in a manner to allow the doors to swing outwardly when not secured in closed position against the outer edges of the floor-sections.

E designates a rod, journaled in the lower timbers of the car-frame and projecting through the end sills sufficiently to allow a crank to be placed upon the squared end E to revolve the same.

y are a series of grooved drums upon shaft- E, to which are secured ropes or chains F, which are secured to metal bars G, fastened to the doors, by which means, when the shaft is revolved to draw upon the rope or chain F, the doors are securely closed, and may be so held by a pawl H and ratchet I, or in any preferred manner.

In each metal bar G is formed a notch G, which engages with a plate G upon the side of the car to hold the doors open.

In operation, the floor being in horizontal position, rod E is turned to cause ropes or chains F to wind upon drums 1 and close the doors L, the rod being secured from turning. The car is now loaded, and if with dirt, coal, or matter to be dumped, when the car is in proper position to discharge the load the rod E is allowed to revolve, permitting the doors L to swing outwardly by reason of the pressure of the load against the same, and allowing as much of the load as will fall by gravity to be discharged, when upon turning crank (1, through the medium of gears e e and worm-gear g, the nut 71. is revolved, forcing the screw upward and with it the beam a, (which is preferably a metal I-beam,) and by reason of the hinged connection of the sections D of the bottom with the same the bottom is caused to assume an inverted-V shape, with an angle of about thirty-five degrees, thereby causing the remainder of the load to discharge by gravity, after which the rod eis rotated in an opposite direction, causing the nut h to lower the screw and with it the floor, whereupon rod E is revolved, causing ropes or chains F to raise the metal bars G from engagement with plates G and to drop into position, when the shaft is further revolved to cause sufficient tension of the ropes or chains to secure the doors, the ratchet holding the same securely.

It will be seen that the entire lifting mechanism is out of the way and fully protected from breakage, and that any desired power may be brought upon the screw to raise the bottom of the car with its load.

\Vhat I claim is 1. In a dumping-car, one or more verticallymovable screws, geared centrally of the bottom, a central section of the floor connectedwith the screws, and side sections of the bottom hinged to the central section, as and for the purpose set forth.

2. In a dumping-car, a floor composed of a central section, and side sections hinged thereto, screws secured beneath the central section and traveling in a centrally-threaded nut formed with a geared periphery, in combination with a worm-wheel intermeshing with the nut and revolved by means of a shaft longitudinally of the car, as and for the purpose set forth.

3. In a dumping-car, a floor formed of a central metal I-beam, side sections hinged thereto, in combination with a series of screws secured to the metal beam, and threaded into revoluble nuts sustained upon a framing beneath the car, as and for the purpose set forth.

4. In a dumping-car, a floor formed of a central section and hinged side sections, screws secured to the central section beneath the same and traveling in centrally-threaded nuts formed with a spirally-geared peripherv, a worm-gear intermeshing with each revoluble nut, the wormgear being driven by means of a shaft longitudinally of the car, upon which is secured a bevel pinion inter meshing with a bevel-gear upon the wormgear-shaft, as and for the purpose set forth.

5. In a dumping-car, the lower sills, a framing suspended from the same, a bed-plate secured upon the framing, anti-friction rollers upon the upper face of the bed-plate, and a revoluble nut mounted upon the rollers, in combination with a screw traveling in the nut and connected with a central section of the carfloor having side sections hinged thereto, as and for the purpose set forth.

(3. In a dumping-car, in combination with an upwardlymovable floor, hinged doors, bars G, secured to the doors, each formed with a notch G, a metal plate G" upon the side of the car, a shaft journaled longitudinally of the car and provided with drums, and ropes secured tothe drums, andbars G, as and for the purpose set forth.

In testimony that I claim the foregoing as my own I hereby affix my signature in presence of two witnesses.

EDWARD E. DIVIGHT.

Witnesses:

WILLIAM WEBsTER, ANNA LEHANEY.

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