US1439195A - Metal end for freight cars - Google Patents

Description

Dec. 19, 1922. 1,439,195.- v. E. SISSON.

METAL END FOR FREIGHT CARS.

ORIGINAL FILED OCT. 1, 1920. zsnzns-sutn I.

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V. E. SISSON.

METAL END FOR FREIGHT CARS.

ORIGINAL man OCT. i. 1920. 2 suzns-snsn 2.

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Patented Dec. 19,1922.

NITED srarss PATENT OFFICE.

VINTON E. SISSON, OF CHICAGO, ILLINOIS ASSIGNOR TO WALTER P. MURPHY, OF CHICAGO, ILLINOIS.

METAL END FOR. IFREIG'H'II.v CARS.

Application filed October 1, 1920, Serial No. 414,053. Renewed June 9, 1922. Serial No. 567,194

This invention relates to improvements in.

end structures for railway cars and more particularly to sheet metal ends for freight cars.

The-end of a freight car is subject to very severe shocks and stresses on account of the '15 tendency of the cargo to shift when the train starts and stops and in switching and also to the tendency of the supcrstructureof the car to weave while the train is in motion. To strengthen this type of car, ends have been constructed, of one or more sheets or panels of metal, usually steel, which sheets or panels are formed with corrugations for rigidifying the structure to more readily meet impacts from without, cargothrusts from within, and the racking strains from weaving.

It is theobject of this invention to-provide an end of the sheet metal type which is adaptableto either wooden car frames or all metal freight cars and that may be employed for strengthening gondola cars, box cars, or-other similar cars. It is afurther object of this invention to provide the sheets or panels of the end with corrugations of particular contour that from their form and duration'are peculiarly adapted to meet the stresses and strains already described. While the corrugations are preferably formed parallel, their relation to each other 40 or their direction is immaterial, likewise'the corrguations may be all pressed from one side of the sheet of metal or m be formed from theopposite sides, as des'red.

While the preferred form of this invention is illustrated upon the accompanying sheets of drawings, yet it is to be understood that minor detall changes may be made without departing from the scope thereof. In the drawings: p I Figure 1 is a viewrin end elevation of a box car illustrating an embodiment of this invention.

Figure 2 is a view in horizontal section through the end taken on the line 2-2 of Figure 1.

Figure 1, illustrating the attachment of the end to a car having a wooden frame.

F igure- 3 i's'a view'similar to Figure 2 illustrating the attachment of the end to an all metal box car.

igure 4 is an enlarged detail view in vertical section taken on the line 44 of- Figure 5 is an enlarged detail plan view of a fragment of the corner of an end sheet or panel.

Figure 6 is an enlarged detail sectional view taken on the line 6-6 of Figure 5, looking in the direction of the arrows, with the parts beyond the line shown partl'yin perspective and partly in section.

The box car end, as illustrated, comprises two ormore sheets or panels 1, preferably of pressed steel, which are attached to the corner posts, end plate and end sill in the usual. manner. Figure 2 illustrates a means of attaching the panels to a wooden corner post 2 by flanging the ends of the panel and, securingthe flanges to the post, while Figure 3 illustrates the attachment to an all metal car 'in which the corner post 3 is usually in the form of an angle iron which secures the. end in the manner shown. 1

Aplurality of parallel strengthening corrugations are formed in. each panel 1 and merged at their ends into the lane of the panel so that the panel has a at marginal portion about its edges.

The enlarged sectional view, Figure 4,

clearly indicates the shape or contour of the corrugations, and from which it is seen that each corrugation is formed with flat main walls 4 substantially at right angles tothe plane of the panel connected by portions 5 which are semi-circular in cross section and tangent to the main walls. The corrugationsare similar and continuous and extend from opposite sides of the neutral axis of the panel. The semi-circular portions 5 having equal radii and being joined by the fiat main walls 4 of equal depth, the 0 depth of a corrugation exceeds its width by the depth of the main walls.

A wooden end lining 6 is preferably pro:

vided on the inner side of the end and a plurality of filler blocks 7 are received 1% within and attached to a number of the corru tions, as shown, to which the wooden limng is nailed. The width of each corrupreferably remains constant throughout the greater part but gradually diminishes at each end until the corrugation mer es into the plane of the panel, as shown in igures and 6. In theory,'the ideal form of corrugation for this purpose would have fiat mainv walls extending at right angles to. the plane of the panel as having the greatest strength to resist the stresses imposed on car ends. -,In

practice, in pressing corrugations from a panel by dies, it is very diflicult to form the main walls in this relation. In the 'corrugation illustrated, from itsipeculiar contour, it is possible to form the main walls' 4 substantially at right angles to the plane of the panel. The semi-circular portions 5 between the walls 4 act in the manner of an arch or bridge whereby stresses occurring at the apex are distributed through the curved portions to the 'main walls which, as above said, are most advantageously arranged to meet such stresses. The majority of impacts received by the end of a car arefrom within and are paused by shifting of the cargo. The cargo thrusts are first received on the wooden lining 6 of the end and as this lining is continuous and is in contact with the apices of the respective corrugations, the thrusts will be transmitted from the lining 6 through the curved portions 5 of the corrugations and be distributed through the main walls 4.

What I claim is:

1. A metal panel for car ends having a plurality of corrugations formed therein, with the main walls of the corrugations parallel and formed substantially at right angles to the plane of the panel, and having semi-circular portions connecting said walls.

2. A metal panel for car ends having a plurality of corrugations of constant width throughout their major length formed there in, said corrugations having main, walls formed parallel and substantially at right angles to the plane of the panel and having semi-circular portions connecting said walls.

3. A metal panel for car ends having a plurality of corrugations of constant width throughout their major length and merged into the panel-at the ends with the main walls of the corrugations formed parallel and substantially at right angles to the plane of the panel, and semi-circular tangential portions connectin said .walls.

4. A metal pane for car ends having a pluralit of corrugations formed on alternate si es of the neutral axis of the panel and having parallel main walls formed substantially at right angles to the plane of the panel, and having semi-circular portions connecting said walls, the depth of. the corrugations exceeding their width.

5. A metal panel for car ends having a plurality of corrugations. formed on alternate. sides of the neutral axis of the panel and having parallel main walls formed substantially at right angles to the plane of the panel, and having semi-circular portions tangentially connecting said walls, the depth of each corrugation exceeding its width by the depth of the main walls.

6. A metal panel for car ends having a plurality of corrugations formed therein, with the main walls of the corrugations parallel and formed substantially at right angles to the plane of the panel, and having semi-circular portions connecting said walls, said corrugations terminating within the edge of the panel.

7. A metal panel for car ends having a plurality of corrugations of constant width throughout their major length formed therein, said corrugations having main wallsformed parallel and substantially at right angles to the plane of the panel and having semi-circular portions connecting said walls, said corrugations terminating within the edge of the panel.

8. A metal panel for car ends having a plurality of corrugations formed on alternate sides of the neutral axis of the panel and having parallel main walls formed sub stantially at right angles to the plane of the panel, and having semi-circular portions tangentially connecting said walls, the depth of each corrugation exceeding its width by the depth of the main walls, said corrugations terminating within the edge of the panel.

VINTON E. sisson."

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