US1809643A - Railway car drop door - Google Patents

Description

June 9; 1931. A. E. SMALL I 1,309,643

RAILWAY CAR DROP DOOR Filed April 25, 1929 3 Sheets-Sheet 1 o n -t1:5 E o E a I o O 1 3 O O O O O O .Ew/eizlor: firth urESmalZ H93 fllt'orne June 9, 1931. 'A. E. SMALL mmwmfi CAR DROP DOOR Filed April 25. 1929 5 Sheets-Sheet 2 lie 2225a urlfimall fliiarneg June 9, 1931. A. E. SMALL RAILWAY CAR DROP DOOR 5 Sheets-Sheet 3 Filed April 25, 1929 JIQQen for flrf/zza-E all fliorne a n .e. b 44 b \adiu am w 2 w p d 6 19 Patented June 9, 1931 UNITED r ARTHUR SMALL, or oHIcAGo, ILLINOIS, assreivon To tin-ION METAL rnonuors COMPANY, or cH'IcAGo; itLL'iiivo'rs, A coerce-Arron or DELAWARE RAILWAY am o? noon Application filed April 25,

The invention relates to railway cars of the dumping type but more specifically to the socalled general service gondola cars where in the floor consists of a plurality of doors, which doors usually have one end hinged to the center construction of the car and the other end supported by the side wall of the car when the door is in closed position. Such doors are usually each provided with a- ;plurality of hinge elements and support ele men-ts,and Iprovide a beam element "between each hinge element and its opposite supporting element. When two hinges are used to each door each of such beams supports substantially 50% of the load imposed upon the door and where three hinge elements are'used each beam supports substantially one-third of the load imposed upon the door.

carries substantially two-thirds of the :load

imposed upon the door. (See Fig. 2)

The object of this invention is to provide a hinged door for arailway car, which door is reinforced by beam elements which j'fun'ction when the door is in closed position and another beam element which functions when the door is in open position. Another object of the invention is tosecure co-operation between these. dilierent beam elements whereby each beam element reinforces each other beam element.

In the drawings:

Figs. 1, 2 and 3 show a typical applicatio of my invention to a railway car.

Figs. 4 to 8 inclusive show a form of the door in detail.

Fig. 9 shows a modified construction: Fig.

I element 13 extending 1929. serial 353,008.

10 is a section'on line 1'0'-10of Fig. 9 Fig. 11 is a section on line 11'*11 of Fig. 9;

Fi'gs. 1-2, 1 3 and 14 are illustrative diagrams.

In -the drawings, the usual parts of the car are shown, such as center sills or center construction 1; cover plate 2; crossdiaphragms' 3,"side-wall 4; operating shaft 5; raising 'chainfiandstop 7 The door is provided with hinge elements 10 adjacent one end thereof which engage the hinges 11 mounted on the center construction 1. The door is also provided with support elements 12adj acent the other end of the door to which the raising chain 6 is secured. The term support elements means any means ad acentthe outer end of the door which rests upon a partof thecar proper to support the door when it is in closed position. The door is further provided with a rib or beam between each of the hinge elements 10 and the opposite support elements 12. The bumpers 14 are preferably positioned adjacent the opposite sides of the door and another rib or beam element 15 substantially normal to the first mentioned rib or beam element is provided which extends between said bumpers.

I also preferably-provide brackets 36 extending from the ribstoward the corners of the door to prevent the drooping of these corners and reinforcing ribs 37 between the hinge elements and reinforcing ribs 38 be-, twee'nth'e support elements;

As the ribs forming the beam element be,- tweenthe bumpers must support a greater load than the other beam elements they are preferably deeperso tively stronger.

The different beam elements cross each-0th er-=and are so formed as to preventeith'erone of them from deflecting under stress, thereby co-operat1ng to strengthen each of then I prefer "to make the door of 'castmetal wherein .it is easier to distribute the metal in the 'door accordingto the stress imposed upon the various parts and a casting also'elimin ates fabrication and assembling of the various parts, and furthermore, assures that the various parts of the door will remain intact and as to make them rela- V will not be loosened or severed by the motion of the train in service. The invention, however, is not limited to a cast metal door and Figs. 9, 10 and 11 show a construction wherein the body of the door is made of a rolled metallic plate having a beam element 50, shown as a T section extending between the hinge elements 51 and the support elements 52. The beam element 50 is preferably attached to a flange 53 adjacent each end of the door. The door is also provided with a strap 54 which is secured to flanges 55 at the side margins of the door. lVhen the door is in open position it rests upon the end portions of the strap 56 which forms the bumpers and the strap in combination with the beam ele ments (forming struts) forms a truss between the bumpers. The metallic plate may be re inforced with corrugations 57.

Figs. 12, 13 and 14 are diagrams wherein Fig. 12 shows the beam elements a. extending between the hinge elements 2) and sup ports a and the. other beam elements (1 extending between the opposite bumpers a. The shaded portion in Fig. 13 shows the area of the load supported by one of the beam ele ments 0 which is one-half of the load. The shaded portion in Fig. 14 shows the area of the load supported by the beam d which is about two-thirds of the load, thus the beam d should be one-third stronger than the beam a.

The accompanying drawings illustrate the preferred form of the invention, though it is to be understood that the invention is not limited to the exact details of construction shown and described, as it is ObVlOllS that various modifications thereof within the scope of the claims will occur to persons skilled in the art.

I claim:

1. A door for a railway dump car comprising hinge elements adjacent one end thereof, support elements adjacent the other end thereof, bumpers adjacent the opposite sides thereof, a rib extending between each of the hinge elements and the opposite support elements, and another rib substantially normal to the first mentioned ribs extending between said bumpers.

2. A door for a railway dump car comprising hinge elements adjacent one end thereof, support elements adjacent the other end thereof, bumpers adjacent the opposite sides thereof, a rib extending between each of the hinge elements and the opposite support elements, brackets extending from said ribs to- Ward the corners of the door, and another rib substantially normal to the first mentioned ribs extending between said bumpers.

3. A door for a railway dump car comprising hinge elements adjacent one end thereof, support elements adjacent the other end thereof, bumpers adjacent the opposite sides thereof, arib extending between each of the hinge elements and the opposite support elements, and a deeper rib substantially normal to the first mentioned ribs extending between said bumpers.

4. A door for a railway dump car having hinge elements, support elements, andv bumpers, said door provided with a beam element extending from the hinge elements to the supporting elements, respectively, and another beam element substantially normal to the first mentioned beam element extending between said bumpers.

5. In a railway car having a door opening, hinge butts adjacent one end thereof, door supports adjacent the oiher end thereof,a door stop adjacent each side thereof, and a door having hinge elements engaging said hinge butts, support elements engag ing said supports when the door is in closed position, and bumpers positioned to engage said stops when the door is in open. position, said door provided with a beam element extending from the hinge elements to the sup porting elements, respectively, and another beam element substantially norn' al to the first mentioned beam element extending between said bumpers.

G. A door for a railway car comprising hinge elements adjacent one end thereof, support elements adjacent the other end thereof, bumpers adjacent the opposite sides thereof, a reinforcing rib extending between said hinge elements, another reinforcing rib extending between said support elements, a rib extending between each of the hinge elements and the opposite support elements, brackets extending from said ribs toward the corners of the door, and another rib substantially normal to the first mentioned ribs extending between said bumpers.

7. In a railway car having a door opening and a door therefor, the combination of hinge members adjacent one end of the open- .ing, support members adjacent the opposite end of the opening to support the door in closed position, and door stops on the opposite sides of the opening to support the door in open position, said door provided with a rib extending between each hinge member and the opposite support member, and another rib extending between the portions of the door which engage said stops.

ARTHUR E. SMALL.

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