USRE7795E - Improvement in car-door-hanging devices - Google Patents

Description

E. E. PRATT. CAR DOOR HANGING DEVICE.

Reissued July 17, 1877.

scription. sufficiently through the by which a more eflect ve means and operating such or traverse, the door G being UNITED STATES PATENT OFFICE,

IMPROVEMENT INCAR-DOCR-HANGING DEVICES.

Letters W No. 104,903, dlfid Deeembfl 5, 1876; Reissue NoHLYIS, dated July 17, 187 7 application filed June 25, 1877.

- To all whom it may concern:

Be it known that I, ELIAS E. PRATT, of Horwobd, in the county of Norfolk, State. of Massachusetts, have invented certain new and useful Improvements in Devices for Hang,- ingGar-Doors, of which the following is a de full, clear, and exact to enable any person skilled in the art or science to which my invention appertains to make and use the same, reference accompanying drawings, forming a part of this being had to the specification, in which-:-

Figure 1 is an isometrical projection, showing the door partially opened and also detached portions of the'same Fig. 2, a vertical cross-section, showing the suspensory hanging devices; Fig. 3, a vertical cross-section taken center oi. avpair of the, trucks; and Fig. 4, a view of one of the staples.

Like letters of reference indicate corre-. sponding parts in the different figures of the drawings.

My invention relates, principally, to the doors of freight-cars; and consists in a novel construction and arrangement of the parts, as hereinafter more fully set forth and claimed,

for hanging doors is produced than is now inordinary use.

In' the drawing, A represents the side of the car; G, the door; and P, the opening in the car which the door is designed to close. Immediately above this opening there is a runlet, B, attached to the side or body of the car the screws a: f. This runlet is providedwith inwardly and. horizontally projecting flan or tips 0 0 near its base, forming a track on which the trucks or wheels .D D roll suspended by means of the staples or lugs F F, which work in a slot or longitudinal opening between the flaniess, and rest on the axles z 2, by which the true are connected. The upper ends 'or loops of the staples are flattened or laterally elongated, as best seen in Fig. 4, having a straight horizontal section from d to p.-

The lower end of the door is provided with a strap 1, and is prevented from swinging ardly by the friction-roller H. The end ofithisstrap is elevated at the rear edge of the door by means of that when the door is closed the thickened edge of the same, roller B, will cause the door to be pressed inwardly and make a tight joint at that section of the opening P.

. Substantially the same result is accomof the strap K, which is provided with .the cam-shaped projection or dog m, fitting into a correspondingly-inclined socket (not in. the frame of the door, so thatwhen the door is closed the incline m, striking the inclined side of the socket, of the door inwardly, and also form a tight. joint, effectually preveu sparks, dust, 8m, from without.

The top, sides, and track of the runlet B are mation of the runlet being such as to completely house or cover the track, wheels, loops, and top of the door, and prevent the working parts described from clogging with snow and ice, and also the entrance of sparks, dust, ram, car. v The elongated staples or lugs F give free play to the wheels, and prevent the parts from cramping orbinding in moving the door. They also materially lessen the friction, the axle z rolling on the under side of the lug F, instead of rotating in a fixed bearing or box ing and closing the same, for instance:

The door being closed, 9 or at that part of the lug farthest from the front edge of the door. If, now, the door is moved in, a direction to open the same, the truck D will traverse the track formed by the nder side or horizontal from p' to d, and vice the lift or wedge n, so

ner may be used readily for barns, werecoming into contact with the plished at the front edge'of the door by means shown) will force this part ting the entranceof mt.nietal,...ant.rneterablxcastintegrahthefon a.

&c., over the door into the body of v the as the door is moved back and forth in openr-v the axle z will be at flanges 0 O,-while at the same time the axle or closed,

houses, and in a variety of other places witnout departing from the spirit of my invention. Having thus explained my improvement, what I claim is-- I 1. In a. device for hanging the door ofa car, the runlet B; provided with the flanges '0; and otherwise constructed and arranged to gp'erate substantially as set forth and speeie 2. In a device for hanging the door of a. car, the laterally-elongated staple or log F, constrncted and arranged trucks D and .door forth and specified.

to operate withthe in combination G, substantially as set,

a. The door G, lugs F, trucks assemble: B, combined and arranged to operate'snhstantially as set forth and specified.

4. The door G, provided with the wedge. n, I

with the roller H, snbstantially as set forth and specified.

5. The inclined projection m, in combination with the door 0-, substantially as' set forth Witnesses:

0. A. SHAW, H. E. METGALF.

ELIAS E. PRATT;-

Images