US1502354A - Corrugated metal end structure for cars - Google Patents

Description

July 22, 1924.

V. E. SISSON coxnueuzn METAL END STRUCTURE FOR CARS Filed Oct. 1, 1920 3 SheeLs-Sheet 1 FIG.2

July 22, 1924.

v. E. SISSON CORRUGATED METAL END STRUCTURE FOR CARS Filed Oct. 1, 1920 3 Sheets-Sheet 5 F'IGJO FIG.9

FIGJI FIGJZ FIG-13 jive/liar llzzorz 625-501;

Patented Jul 22, 1924.

. I, 1,502,354 PATENT OFICE.

vmron E. sIssoN, or CHICAGO, ILLINOIS, ASSIGNOR To WALTER r. MURPHY, or

' cmcaeo, ILLINoIs.

CORRUGATED METAL END STRUCTURE FOR CARS.

Application filed October 1, 1920. Serial No. 414,058..

To all whom it may concern:

Be' it known that I, VINTON E. Srsson, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Corrugated Metal End" Structures for Cars, of which the following is a specification.

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 tendency of the cargo to shift when the train starts and stops and in switching and also to the tendency of the superstructure of the car to weave while the train is in motion. To strengthen this type of car, ends have been constructed of one of 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, cargo thrusts from within, and the racking strainsfrom weaving.

It is the object of this invention to provide an end of the sheet metal type which is adaptable to either wooden car frames or all metal freight carsand that may be employed for strengthening gondola cars,'bo-x cars, or otherqsimilarcars. It is a further object of this invention to provide the sheets .or panels of the end with corrugations of particular contour that from their form and length are peculiarly adapted to meet the stresses and strains already described. While the corrugations are preferably formed parallel, the relation to each other or their direction is immaterial, likewise the corrugations may be all pressed from oneside of the sheet of metal or may be formed from opposite sides, as desired.

-While the preferred -forms of this invention are illustrated upon the accompanying sheets of drawings, yet it is to be understood that minor detail changes may be madewithout departing from the scope thereof.

In the drawings I Figure 1 is a fragmentary view in end elevation of a box car illustrating an embodiment of this invention.

Figure 2 is a- View in horizontal section taken on the line 2-2 of Figure ,1. a

Figure 3 is a View illustrating i'n diagram a cross section of a corrugated end plate or panel.

Figure 4 is a similar view showing the effect of a blow or impact upon such a panel.

Figure 5 is a fragmentary view in front elevation of a corner of a panel illustrating a form of this invention.

Figure 6 is a sectional view taken on the line 6-6 f Figure 5.

Figure 7 is a sectional view taken on the line 77 of Figure 5. Figure 8. is an enlarged fragmentary view in front elevation of a corner of a panel illustrating another form of this invention.

Figure 9 is a sectional view taken on the line 99 of Figure 8.

Figure 10 is a'sectional view taken on the line l010 of Figure 8.

Figure 11 is an enlarged fragmentary view in front elevation of a corner of a panel illustrating another form of this invention.

F i ure 12 is a sectional view taken on the line 12-12 of Figure 11. 1

Figure 13 is a sectional view taken on the line 1313 of Figure 11. An embodiment of this invention is illustrated as applied to a box car in which the ends each comprise two or more sheet 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 panel to a wooden corner post 2 by fianging the panel and securing the flange to the post.

In all forms. shown, a plurality ofstrengthening corrugations having main walls 3 substantially flat and perpendicular to the plane of the panel connected by por tions 4 substantially flat and parallel to the plane of the panel, and of greater width than the height of the main walls, are formed in each panel, which corrugations merge at their ends into the plane of the panel so that the panel has a flat marginal .portion about itsedges. a

This general type of corrugation is shown in diagram in Figure 3 in its normel position. When a panel of this form receives a blowof great force, such as an impact from shifting cargo, the panel will be bowed or bent outward "in the direction of the blow on account of the resiliency or spring like action of the bend in the metal between the main walls and connecting portions and if the blow is extremely severe causing an extreme bulging of the panel the resiliency is not sufiicient to return the panel to its normal plane leaving it bulged to a certain extent, defeating the object of the strengthened end.

It is an object of this invention to reinforce the corrugations to resist such bending or bulging action of the panel so that the endwill be sufiicient'ly rigid to meet such.

. v o u exceptional impacts and remain 1n its normal plane. The resiliency of the panel is caused, as aforesaid, by the spring like action of the bend of the'metal where the main walls are joined by the connecting portions and also by the tendency of the metal in the connecting portions to spring or buckle at the same time. It is therefore desirable to rigidify the juncture of the main walls and connecting portions, or the surface of the connecting portions, orboth, to carry out this invention.

Figures 5, 6 and 7 show a means for rigidifying the bendin the metal between the main walls 3 .and'theconnecting portions 4 which comprises in providing a plurality of triangular rigidifying ribs pressed from the main walls between connecting portions. The ribs are preferablyarranged in 'equidistant pairs extending-from opposite sides 'of the corrugations, and preferably comprise one series of ribs 5 pressed inwardl from the opposite main walls 3. and the a ternating portions 4 connecting said walls, terminating at the juncture of the oppositely dis osed connecting portions with said vwa s, and another series of similarly equidistant bosses 6 pressed outward from the main walls 3. and the other alternating portions 4 connecting said walls, terminating at the juncture of the walls and first mentioned connecting. portions 4, which alternate with the first series with each pair of one series lying midway'between the adjacent pairs of theother series. The ribs 5 act as rigidifying ribs for the bend in the metal between the main walls an one series of alternating connecting portions and the ribs 6 act as rigidifying r1bs for the bends on the opposite sides of the main walls and their alternating connecting portions. These rigidifying ribs counteract the spring or bending tendency of the juncture between main walls and connecting portions upon receiving asevere blow or impact and func tlon to maintain the panel in its normal plane. 1

As aforesaid, there is also a tendency of the metal comprising the surface of the connecting portions between the main .walls to give or buckle in the direction of the blow. Another means for rigidifying the end, in accordance with this invention, is to press transverse elongated indentations or corrugatlons 1n the respectlve connecting portions 4, as shown in Figures 8, 9 and 10;

It is preferable to press the indentations 7 in the series of alternating connecting portions 4, which lie in the same plane, in-

wardly between the main walls 3 connected thereby, as shown in Figure 9, andto press he indentations 8 in the opposite series of indentations 8'of the other series similarly equidistant with the indentations of one series lying midway between the indentations of the other series, as shown in Figure 8.- These indentations form strengthening or rigidifying ribs for the surfaces of the connecting portions 4 to resist any force which would normallv bend or buckle the surface in a direction at right angles to the length of. the corrugations.

Figures 11, 12 and 13 show a panel 1 in which the bosses 5 and 6, shown in Figure 5, and the indentations 7 and 8 shown in Figure 8, are combined: In this form the pairs of bosses 5 and 6 and the indentations 7 and 8 are all equally spaced apart and so arranged that the center lines of the indentations 7 will pass through the bosses 6 and the center lines of I the indentations '8 through the bosses 5. This latter form, shown in Figures 1 and 11, strengthens the panel against bulging by rigidifying the parts having a natural tendency to, give or buckle and further strengthens the panel against all'strains' and stresses by disposing an equal amount of metal at a distance from the neutral axis of the panel in each corrugation. v

A wooden lining 9 is preferably provided on the inner side of the end and a plurality of filler blocks 10 are received within and secured .to a number of the corrugations to whichthe lining is attached. The filler blocks being beyeledto pass between the bosses and transversely grooved to accom- 'modate the transverse indentations.

Either series of ribs or either series of indentations may be used alone or any combination of ribs and indentations may be employed as may be desired without departing from the scope of this invention.

What I claim is:

1. A metal panel for cariends having a plurality of reinforcing corrugations formed therein, said corrugations formed with wall members and wall connecting portions, and

substantially triangular reinforcing ribs connecting said wall members and wall connecting portions.

2. A metal panel for car ends having a plurality of reinforcing corrugations formed therein, said corrugations having wall mem bers and wall connecting portions, said wall connecting portions having indentations formed therein.

3. A metal panel for car ends having a plurality of reinforcing corrugations formed therein, said corrugations formed with main walls and connecting portions, and substantially triangular reinforcing ribs connecting said wall members and wall connecting por tions, said wall connecting portions having indentations formed therein.

4. A metal panel for car ends having a plurality of reinforcing corrugations formed therein, said corrugations formed with main walls and connecting portions between said walls, said co eating portions having elongated indentations formed therein terminating within said connecting portion.

5. A metal-panel for car ends having a plurality of corrugations therein formed with main walls and alternating connecting portions between the opposite sides of the main walls, and ribs pressed in the main walls extending alternately into the respective alternating connecting portionsadjacent thereto.

6. A metal panel for car ends having a.

with main walls and alternating connecting portions between the opposite sides of'the main walls, and ribs pressed in the .main walls extending alternately into the respective alternating connecting portions adjacent thereto, and indentations pressed in the said connecting portions.

7. A metal panel for car ends having a plurality of corrugations therein formed with main walls and alternating connecting portions between the opposite sides of themain walls,and ribs pressed in the main nating connecting portions adjacent thereto,

and transverse indentations in the connecting portions arranged in line with the ribs extending from the adjacent main walls into the oppositely disposed connecting portions.

9. A metal panel for car ends having a plurality of reinforcing corrugations formed therein, said corrugations formed with main walls and connecting portions between said walls, one of said connecting portions having elongated indentations formed therein terminating within said connecting ortion.

VINTON E. SIS ON.

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