US742983A - Grain-door for railway-cars. - Google Patents

Description

No. 742,983. PATENTE'D 1107.3, 1903,

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' GRAINDOOR FOR RAILWAY (mus APPLICATION FILED JUNE 19, 1902. RENEWED KAEfO; 1903.

No. 742,983. PATENTED NOV. 3, 1903.

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GRAIN DOOR P03, RAILWAY CARS. APPLIOATION FILED JUNE 19 1902. 'B ENEWED MAR. 30, 1908.

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No. 742,983. PATENTED ov. 3, 1903 F. HAOHMANN.

GRAIN DOOR FOB. RAILWAY CARS;

APPLIOATION FILED JUNE 19, 1902. RENEWED MAR. 30, 1903.

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UNITE STATES Patented November 3, 1903.

PATENT OFFICE.

FREDERICK HAGHMANN, OF ST. PAUL, MINNESOTA, ASSIGNOR TO BRAINARD SJ GRIFFIN AND BENJAMIN F. SIMON, OF ST. PAUL, MINNESOTA.

G RAIN-DOOR FOR RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent No. 742,983, dated November 3, 1903.

. Application filed June 19,1902. Renewed March 30, 1903. Serial No. 150,279. (No model.)

To all whom it may concern.-

Be it known that I, FREDERICK HACHMANN, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota,have invented certain new and useful Improvements in Grain-Doors for Railway-Oars, of which the following is a specification.

My invention relates to improvements in grain-doors for railway-cars, which while securely holding the grain within the car when closed may yet be readily and easily opened out of the way. I accomplish these results by means of the features of construction and combination hereinafter particularly described and claimed.

Inthe accompanying drawings,forming part of this specification, Figure 1isa side elevation of part of a box-car, showing my improved grain-door in closed position as seen from the outside of the car. Fig. 2 is a longitudinal vertical section of the same, showing the grain-door as seen from within the car. Fig. 3 is a vertical section taken on line a: m of Fig. 2. Fig. 4 is a horizontal section taken on line y y of Fig. 2, showing one door open and one closed; and Fig. 5 is avertical section of part of the car, showing one of the grain-doors in open position and the other supported under the roof of the car.

In the drawings, A represents the side of the box-car, and B the ordinary door-casing. Fitted within the door-casing are two similar doors 0 and 0', supported by means of straps 2 and 2, having hinge connection 3 and 3 with plates 4 and 4, secured to the door by means of rivets or bolts 5. The upper ends of the straps are formed with balls 6 and 6, respectively, which fit within the fingers 7 and 7 of the brackets 8 and 8. Hinged to the upperends of the doors 0 and O by hinges 9 are the extensions 10 and 10. Secured to the bottoms of the doors 0 and 0, near their outer edges, are plates 11 and 11, carrying downwardly projecting trunnions 12 and 12, projecting into openings 13 and 13 in the floor of the car, as shown in Fig. 2. The doors are adapted to be held closed, as shown in Fig. 1, by a bar 14, having pivotal support 15 upon one of the doorsand adapted to be turned into looking engagement with the clips 16 and 16, secured upon the outside of the doors. Hinged in plates 17 and 17 upon the upper ends of the doors adjacent to the inner edges are the rods 18 and 18, having sliding connection with rods 19 and 19. The ends of the rods 19 and 19 are formed with eyes 20 and 20, adapted to receive the hooks 21 and 21, projecting inwardly from the upper horizontal crossbeam of the car for the purpose hereinafter set forth.

In use with a car filled with grain the doors would be secured in the closed position shown in Fig. 1, the upward extensions 10 and 10 being held raised by the pressure of the grain. When it is desired to empty the car of its contents, the bar 14 is adapted to be turned to release the doors, when the weight of the grain against the doors will turn them upon their trunnions 12' and 12 into open position, as illustrated in Fig. 5, allowing the outflow of the grain through the door-opening. When the car is empty and it is desired to carry the doors out of the door-opening and support them at the top of the car, the doors may be either secured together by the bar 14 and in this position carried to the top of the car or they may be separately carried. Assuming that the doors are to be separately carried to the roof of the car the rods 18 and 19 and 18 and 19 would be extended and hooked over the hooks 21 and 21, as shown in Fig. 2. The extensions 10 and 10 would preferably be turned against the body of the door and secured underneath the hooks 22 and 22. The doors would then be swung upward underneath the roof the car and the hooks 23, which project downwardly from the upper beams of the car, he passed through the eyes 24, secured to the upper ends of the doors. The doors would thus be held up under the roof of the car until'again taken down for use. It will be seen that in carrying the doors singly to raised position the rods 18 and 19 and 18 and 19 serve as supports for'the inner sides of the doors, the straps 2 and 2 supporting the outer sides of the doors. If the doors were held secured together by the bar 14 when being carried to raised position it would be evident that it would not be necessary to use the rods and they couldbe left in the positions shown in Fig. 1.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination with a car, of a graindoo'r having pivotal support in the floor of the car, and an upwardly-projecting strap having hinge connection with said door, said strap having swing-support above said door.

2. The combination with a car provided with a door-opening, of a car-door fitted in said opening and having pivotal support in the floor of the car, a hinge connection between said door and the upper framework of the car, and means for holding said door in suspended position underneath the roof of the car.

3. The combination with a car formed with a door-opening, of a door fitted in said opening and having pivotal support in the floor of the car, an upwardly-projecting strap having hinge connection with said door, and swingsupport on the framework above the door, and means 'for supporting said door in raised position underneath the roof of the car.

4. The combination with a car formed with a door-opening, of a door fitted in said opening, a pivot projecting downwardly from said door and fitted in an opening in the floor, a vertical strap having hinge connection with said door, a ball-and-socket support for said strap on the upper framework of the car, and

.means for holding said door in raised position underneath the roof of the car.-

5. The combination with a car formed with adoor-opening, of a pair of doors fitted in said opening, pivotal connection between each of said doors and the floorof the car, swing-support for said doors, and means for supporting said doors in raised position underneath the roof of the car.

6. The combination with a car formed with a door-opening, of a pair of doors fitted in said opening, a pivotal connection between the outer end of each door and the floor of the car, independent swing-supports for said doors, and means for holding said doors supported in raised position underneath thereof of the car.

7. The combination with a car formed with a door-opening, of a pair of doors fitted in said opening, straps having hinge connection with the outer ends of said doors and having swingsupport in the framework of the car above said doors, telescoping rods having hinge connection with the inner ends of said doors and means for detachable support to the framework above said doors,'and means for holding said doors in suspended position underneath the roof of the car.

8. The combination with a car-formed with a door-opening, a pair of doors fitted in said opening, upwardly-projecting hinged extensions for said doors, a pivotal connection between the outer end of each door and the floor of the car, independent swing-supports for said doors, and means for holding said doors in suspended position underneath the roof of the car.

9. The combination with a car formed with a door-opening, of a pair of doors fitted in said opening, upwardly-extending supports having hinge connection with the upper ends of said doors and rotatable swing-support upon the framework above said doors, means for connecting the inner ends of the doors with the framework above the same, and means for holding the doors in suspended position underneath the roof of the car.

10. The combination with a car formed with a door-opening, of a pair of doors fitted in said opening, means for securing said doors together, a pivotal connection between the outer end of each door and the framework below the same, rotatable swing-support for the outer end of each door, and means for supporting said doors in suspended position underneath the roof of thecar.

In testimony whereof I aftix my signature in presence of two witnesses.

FREDERICK HACHMANN.

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