US479070A - Edwaed a - Google Patents

Description

y(No Model.)

E. A. HILL.

GRAIN DOOR PoR GARS.

No. 479,070. Patented July 19, 1892i aQvl l, l; MMM

'mE nnnms versus co., Nor u o msnm un n c UNITED STATES PATENT OFFICE.

EDWARD A. HILL, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO .I AMES L. MALLORY AND EDGAR A. HILL, OF SAME PLACE.

GRAIN-DOOR FOR CARS.

SPECIFICATION forming part of Letters Patent No. 479.070, dated July 19, 1892.

Application filed January 5, 1892. Serial No. 417,053. (No model.)

.To all whom it may concern,.-

Be it known that I, EDWARD A. HILL, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Grain-Doors for Cars, of which the following is a specification, reference being had to the accompanying drawings.

The devices forming the subject-matter of this specification are applicable to grain-doors generally, the improvement embodied herein relating to the connection of the vertical side rods on which the door is elevated, and the corner-pieces projecting from the doorJ and to the combination of devices for holding the top edge of the door when the latter is lowered.

My invention consists in the parts and combinations hereinafter described and claimed.

In the drawings, Figure l is a side View of the door in its lowered position and of va portion of the car adjacent thereto as seen from within. Fig. 2 is a vertical cross-section of the same. Fig. 3 shows in detail, on an enlarged scale, the corner of the door and the parts adjacent thereto. Figa shows a crosssection of the corner of the door and shows, also, the adjacent parts; and Fig. 5 shows a modified form of the ring or shackle forming the connection between the pivot on the door and the vertical rod.

2 is the grain-door, provided at or near each upper corner with pivots 3 3.

4 4 are the side posts of the car, which are preferably grooved, as shown, to permit the setting in of the guide-rods 5 5 Hush with the inner surface of the posts. Saidrods 5 5 have ledges 6 6 at their top upon which the pivots 3 3 may rest when the door is raised.

7 designates the hook bywhich the inner edge of the door is held when raised.

The connection between each rod 5 and its corresponding pivot 3 consists of a shackle 8 of clevis-like forni which surrounds the rod 5 and the pivot 3, as shown in Fig. 3. It may have either one eye, as shown at 8f in Fig. 5, or two eyes, as seen at 8 in the other figures, encircling the pivot 3, these eyes being in either case at right angles, or approximately so, to the opening through which the rod 5 passes. .Thus a universal joint is formed which permits free rotation of the door upon its pivots and also permits it to be raised and in rising to pass easily over the bends forming the ledges 6 in the rods.

By providing a separate aperture for the guide-rodand for the pivot I preserve the freedom Vof motion of the door upon its pivot .at every point and also allow the door to easily pass the bends forming the ledges at the upper end of the guide-rods, while the connection may be made as a Whole to Work smoothly with very little slack.

At the upper edge of the corner-piece, upon which the pivot 3 is formed, is made a pocket or recess 9, in which the hook l0, secured to the door-post, may engage when the door is lowered, the latter being thus prevented from rising and being held close to the car-side. The hook lO is slotted at its outer end to receive the bolt 1l, which secures it to the carside. This slot-ting of the hook l0 allows it to be made long enough to reach across the top of the door, while it can still be swung back in the limited space between the grain-door and the outer door.

I claim- The combination of a door, a pivot at or near each upper corner thereof, a guide-rod at each side of the doorway, and a shackle connecting each pivot and rod, said shackle having separate apertures through which the pivot and rod respectively pass, substantially as described.

EDWARD A. HILL.

'Witnessesz IRWIN VEEDEE, A TODD MASON.

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