US1853936A - Car construction - Google Patents

Description

April l2, 1932. A. E. SMALL 1,853

Y CAR CONSTRUCTION Filed Sept. 5, 1929 5 Sheets-Sheet l l l Invfenor April l2, 1932. i A, E, SMALL Y1,853,936

- CAR CONSTRUCTION Filed Sept 3, 1929 3 Sheets-Sheet 2 April 12, 1932. A, E. SMALL CAR CONSTRUCTION 3 Sheetsj-Sheet 5 Filed Sept. 5, 1929 jwenof Hihi/rE. 211

Patented Apr. 12, 1932 UNiTED; STATES ARTHUR Persa? ortica' E. SMALL, OE CHICAGO, ILLINOIS, ASSIGNOR TOk NION lVlflli'l'.IJAI'. PRODUCTS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION F DELAWARE can CONSTRUCTION Y Application led September 3, 1929. Serial No. 390,067.

Myv invention relates to theconstruction of railway freight cars, and more particularly to that type of gondola car wherein a portion of the floor consists of doors hinged to thecar gebody sothat they may be dropped -to dis- .charge part of the lading. Such cars are used largely to transport coal andballasting. ma-V terial, such as sand, chats, gravel, etc.

By nature of their requirements railway freight train cars are out of doors substantial-Vr ly allof the time, therefore, are subjected tocorrosive. action of the elements, and while paint and other non-corrosive coatings have, been appliedto the car parts, such protection '15 not only has been found to be expensive in time and money,'but the lading Iremoves the coating. This is particularly true of the in-V side of open type cars which are turned upside down in unloading machines causing the load to slide across the inside surfacevof the car body and also when the discharging load slides across the surface of a drop door and also when the long lading rests upon the lowered drop end gate of a gondolacar the fric- 25. tion therebetween caused Aby the movement of the car also removes the protective coating from the end gate. Furthermore, certain ladings, such as sulphur, wet coal, which forms sulphuric acid, and, salinewater (in refrig- 3o erator and stock cars) cause rolled steel or iron to corrode. On account of its lincreased strength'rolled steel inthe form of plates and bars has supplanted wood in Vcar construc-V tion but the corrosive action of the elements eats away the rolled steel or iron material reducing their strength and their length of life. This applies to both the load carrying members, such as the'sills, plates and diaphragms and also the lading retaining mempers, hopper doors, etc. It has been found that cast metal, particularly castl steel, has

more than twice the resistance to corrosion than rolled steel, therefore, one of the objects of the invention .is to make,v the door frame of cast metal, preferably cast steel, to enable it to resist corrosion, and furthermore, to produce a construction wherein the metal can be disposed and positioned to accommo-V date the stresses set up by the .car in service.

bers, such as side and end walls, oors, hop-V lative motion-between the component parts..V of the frame, as it is common knowledge that the vibration ofthe car vin motion, due to" rough and uneven track, andfsteel nwheels rolling on steel rails, togetherwth longer trains and high speeds in present day practice, cause riveted joints and built up sec,-l

tions fto'work. Mloose and the railroadsV look with .favor upon any device Vwhich Vreduces thenurnber of parts and vjoints `as these `are the weak parts of the car and the more such' weak 4parts are eliminated, the Vlonger the life of the car.

Another object of the invention is to pro-v vide a'frame vfor the door `opening' which also is capable of resisting Vthe torsional 'and weavingY movements of the carin service," which movements tend to distort the car out` of shape. Such distortion not only weakens the car structure, but also prevents the doors t from properly closing the 1door opening, al-

lowing a leakage of the lading.

In the drawings:

jFig. l'shows atypical application of Ymy cast metal frame to a railway car.

Fig.y 2 is a section Online' 2-2 of Fig. l. Fig. 3 rshows a modified `cross-bearer of cast metal. Y Y

. Fig.V 4 is a section on line 4 4 of Fig. 3. t. Figs. 5 and 6 show a modified construcion. l Y f i Figs. 7 8 and 9 show another modified construction. Y

Figs. 10 and 1l show still another modified construction; Y

Figs. 1 to 4 inclusive show a typical application of myconstruction to a railway oar, wherein the center sills l; lside Wall 2; side sill' 3 and side stake 4 are of the usual construction. My cast metal frame 5 comprisesH a part @secured to the center sill 1 under which the door 7 fits, which part is preferably providedwith a depending flange 8 to form la seal for the door and a stilfener for the frame. The outer portion of the frame comprises a portion 10 which is also preferably provided with a depending flange 11 to form a seal for the door. This outer portion is also preferably provided with an upstanding flange 12 secured to the side wall of the car. The meeting edges of adjacent door frames (13-14) are secured to the diaphragm or cross bearer 15 of the car. The center sill cover plate 17 is also preferably made of cast metal and I also prefer to use cast metal doors with my construction.

From the above it will be noted that the entire portion of the floor of the car in contact with the lading is of cast metal, thus practically eliminating corrosion due to the lading coming in contact with parts of the car. My cast metal frame 5 notonly forms a frame for the door opening but also forms i. the upper member of the cross bearer (15) which is a girder; furthermore, the iioor portions ofthe door frame 5, with the cover plate, forms theJ rigid floor of the car. The

floor is assembled by putting the several frames in place. Y

In the form shown in Figs. 1l to l in elusive, I provide a cast metal diaphragm or cross bearer (15) which preferably fits between flanges 2O of the adjacent frames and is riveted or otherwise secured thereto. (See Fig. 4.) The bottom portion of this cross bearer or diaphragm comprises oppositelyprojectingobliquely disposed flanges 21. lIhey are obliquely disposed so as to shed the lading when the door is dropped. I also form these flanges to provide a stop 22 for the door. That portion of the flange (23) behind the stop may be flared, as shown in Fig. 2, to better brace the car structure against weaving. This cross bearer is provided with a flange 24 to secure it to the center sill 1 and other anges 25 to secure it to the side sill 3.

In the modified form shown in Figs. 5 and 6 I have provided the cast metal frame with a.v continuous inwardly sloping flange 30 forming awell below which the door is positioned. This construction permits of a very much smaller, and consequently, lighter door, which is easier to manufacture and operate. It also increases the cubical capacity of the car. Thellower part of the depending flanges 30 are flared to form bearing surfaces for the door. The usual'parts of the car are shown, such as center sill 31; side wall 32; side sill 33; cross beam 34 and door 35.

The cover plate 36 is preferably of cast metal and is shown formed with attaching flange 37 and stiffening flanges 38. The diaphragm 34 is shown of pressed steel with an upper angle 39 and lower plate 40.

Another advantage of the construction shown in Figs. 5 and 6 is that long, Vheavy lading, such as rails, pipe, telegraph' poles,

etc., are supported by the cross bearers and not by the doors.

In Figs. 7, 8 and 9 I have shown my construction applied to a so-called one hundred percent dump general service car, wherein the floor line 49 is positioned above the center sills 50. The usual parts of the car are shown, such as side wall 51; diaphragm 52; door 53 and door stop 54. p

Figs. 10 and 11 show a modified construction wherein the cast metal frame is provided with an outwardly projecting dependingflange 60 (preferably continuous) around the door opening and the door is provided with an outwardly inclineddepending flange 61 at its periphery'which co-acts withthe flange 60 of the door frame to completely close the door opening. The usual parts of the car are shown in these figures, such as center sill 62; side wall 63 and cross bearer 64;. f

Where rolled steel members are used I preferably form the cast metal frame so as to cover them and protect them from the lading.

Any convenient door raising or lowering mechanism may be used with my'construction. The form shown in Figs. 2 and 5 consists of a revolving shaft which rests in the slot 71 in the cross bearers and is rolled below the door to support it after the door is in closed position.

The doors may be hinged to or adjacent' the center sill, as shown in the drawings, orY they-may be hinged to any other portion or part of the car and still come within the scope of the invention.

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 obvious that variousmodilicationsthereof within the scopeof the claims will occur to persons skilled in the art.

I claim: p l

1. In a railway car having a substantially horizontal floor, comprising a cast metal door frame having a door opening and horizontal oor portions, said ioor portions provided with integral reinforcing flanges surrounding said openings.

2. In a railway car having a substantially horizontal floor, comprising a cast metal door frame having a door opening, horizontal fioor portions, and integral depending flanges adjacent the edges of said opening.

3. In a railway car having a substantially horizontal floor, comprising a cast metal door frame having a door opening, horizontal floor portions, and integral depending flanges spaced away from the edges of the door opening to form a rabbet for the reception of a door.

4. Ina railway car having a substantially horizontal floor, comprising a cast metal door frame having a door opening, and horizontal floor portions, secured to the center construcf tion, said ioor portions provided with integral .reinforcing ianges surrounding said opening.

5. In a railway car having a substantially horizontal` ioor, and a side wall, said floor comprising a cast metal door frame having a door opening and horizontal floor portions, one of said iioor portions secured to the center construction and the opposite side of the frame secured to the side wall.

6. In a' railway car having a ,substantially horizontal floor, a side wall, and a stake, said Hoor comprising a cast metal door frame having adoor opening, and horizontal floor portions, said door frame secured to the center construction, side wall and side stake.

7 In a railway car having a substantially horizontal floor, and a side wall, said floor comprising a cast metal door iframe having a door opening and horizontal oor portions, said door frame provided with an upstanding flange secured to the side wall.

8p. In a railway car having a centerV con? struction, a side wall, a cross vbearer secured 4to the center construction and the side wall, Y

the center construction and the side wall and between said cross bearers.

10. In a railway car having a center construction, a side wall and a pair of cross bearers extending between the center construction and side wall and secured thereto, the combination of a cast metal frame surrounding a door opening and having iioor portions forming the floor of the car between the center construction and the side wall and between said cross bearers, said frame having an extension overlying said center construction and secured thereto.

11. In a railway car vhaving a center construction, a side wall and a pair of cross bearers extending between the center con-y struction and side wall and secured thereto,l

the combination of a cast metal frame surrounding a door opening and having floor portions forming the floor ofthe car between the center construction `and the side wall and n between said cross bearers, said frame having depending flanges secured to said cross bearers respectively.

12. In a railwaycar having a center construction, a sidewall and a pair of cross bearers extending between the center construction and sidewall and secured thereto, the combination of a cast metal frame surrounding a door opening and having floor portions forming the ioor of the car between the center construction and the side wall and between said cross bearers, said frame having tion and secured thereto and having depend` ing flanges secured to said cross bearers, re-

spectively, and having an upstanding flange secured to said side wall.

14. In a railway car having a substantially horizontal floor and a center construction,

the combination ofV a cast metal door frameV ARTHUR E. SMALL.

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