US1208897A - Metallic car end. - Google Patents

Description

P. M. BEARD.

METALLIC CAR END.

APPLICATION FILED MAR-8.1915.

Patented Dec. 19, 1916.

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PAUL M. BEARD, OF ST. LOUIS, MISSOURI, ASSIGNOR TO AMERICAN CAR AND FOUNDRY COMPANY, OF ST. LOUIS, MISSOURI, A. CORPORATION OF NEW JERSEY.

METALLIC CAR END.

To all whom it may concern Be itknown that 1, PAUL M. BEARD, a citizen of the United States, residing at the city of St. Louis, State of Missouri, have invented a certain new and useful Improvement in Metallic Car Ends, of whichthe following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification. I

My invention relates generally to railway car structures, and pertains specifically to certain improvements in box car ends which may be employed either as a portion of the.

original car structure, or may be utilized as a repair part to replace ends which have been broken or damaged in service.

My improved car end is designed as a unitary structure having the various parts formed with particular reference to one another so as to secure maximum efiiciency, and possessed of features which enable it to cooperate effectively with other portions of the car structure to provide a very strong and stable construction.

Heretofore it has been the practice to form car ends of a plurality of sections of sheet metal which are secured together in divers fashions, and which are formed with variously disposed stiifening .ribs or corrugations. This portion of the car structure is subjected in service to a variety of shocks and stresses resulting from various flexing and swaying movements in the car structure, impacts andpressures from the lading of the car when the same is shifted in transportation, and various other shocks and impacts arising from vibration, collisions and the like.

.Among the purposes of my invention are, the provision of an end structure which may be easily and cheaply manufactured and installed, which may be repaired with a minimum of waste, and which is designed particularly to resist the various destructive stresses to which the structure is subjectedi y Other objects of my'invention will be obvious or pointed out hereinafter.

As illustrated in the accompanying drawings, Figure 1 represents a front elevational View of one form of my improved car end; ga verti al section taken substantially Specification of Letters Patent. Patented De 19, 1916 Application filed March 8, 1915.

Serial No. 13,001. Y

fragmentary vertical section of a second modified form.

Referring to the drawings in detail, it

.will be understood that 1 represents an upper section of suitable sheet metal, and 2 a lower section. These sections have their edges turned to provide suitable attaching flanges 4, and are formed with duplicate stampings consisting of transverse ribs or corrugations 5 and longitudinal ribs or corrugations 6. Inasmuch as the ribs or corrugations of section 1 are duplicates of the ribs or corrugations of section 2, said ribs orcorrugations may be formed in both sections by the same dies.

.As is obvious from the illustration, the longitudinal corrugations 6 are disposed adjacent the meeting edges of the sections 1 and 2, and the transverse corrugations 5 extend at substantially right angles to the longitudinal corrugations 6. The margin of section 1 is overlapped upon the margin of section 2 to provide a joint which will act as a water-shed to prevent the ingress of water or dust. At the inner side of the sections, a tie plate 7 is disposed so as to overlap the longitudinal corrugations 6, and is secured to these sections by the lines of rivets or suitable fastenings 8 disposed in the sections at the inward sides of the longitudinal corrugations 6. The marginal portions of the sections are offset, as shown, to accom-" attaching plates 7 which may be of any form or length desired or necessary to enable their being attached to suitable portions of the car body to firmly anchor the end structure. This construction provides a particularly strong joint between the sections. In case of the shifting of the ,car lading such as would subject the end to internally applied stresses, tie plate 7, to-

gether with the overlapped margin, forms a compression member and the corrugations 6 a tension member, which members 00- operate to resist the internally applied stresses. The tie plate iseffective in this manner not onlyshorizonta lly, but also in a vertical direction,'and eliec tivelyresists any tendency of the sections to be sprung out along the line on which they are joined. This disposal of the tie plate to act'as a compression member relative to internally applied stresses, takes the stresses off of the rivet heads, as the tendency of movement of the sections relative to the tie plate will be such as to place the rivets in shear. This is due to the fact, of course, that the portions of the sections adjacent to the corrugations 6 function as a tension member relative to the tie plate 7, and hence there will be a relative sliding tendency between the tie plate and the portions of the sec- .tions afiixed thereto.

.The provision of the corrugations 6 adjacent the edges of both sections 1 and 2- is very effective in preventing the rivets .being torn out by local impacts from either within or without the car, as these corrugations strengthen the edges locally by transmitting stresses received thereat across the entire structure. This prevents either of the sec- .tions being bent at a local area" and the rivets torn out.

In the modified form illustrated in Figs.

I 4 and 5, it will be seen that the corrugations 5 extend approximately to the corrugations 6, crossing both the margins of the tie plate 7 and the lines of fastenings 8. This gives added strength to the construction which resists any tendency of the sections to bend on the lines of fastenings 8. The tie plate 7, in addition to the functions. indicated above, has the further efiect of preventing the corrugations'fi being flattened out or having their crosssectional contour distorted by stresses received by the sections, as it is secured to the sections at both' sides of the corrugations 6, and tends to hold the uncorrugated'portions of the sections in their proper plane. The transverse ribs ,5 of the respective sections codperate with their associated longitudinal ribs 6 to strengthen: the structure-by stiffening 1t vertically to support vertical loads, the transverse-ribs giving the necessary vertical stiifeiiiiig, and the longitudinal ribs operat' ing to hold the verticalfribs in the line of thrust and prevent the lateral bulging or flattening out of the verticalv ribs. The pro vision of a longitudinal rib 6 in each of the sections and extending from-corner post to corner post, not only gives the structure added-stability, but permits the depth of the transii erse ribs being somewhat decreased, thus enabling the handbrake shaft or other car fittings being positioned close to the end.

I am aware that ale device is susceptible of changes and ,modifications not herein illustrated but within the intended scope of my invention. For example In Fig. 6, I

have shown a second modified form in which the second section 2 is very narrow, being disposed intermediate the first section 1 and a thirdsection 3 This arrangement gives three longitudinal box girder members, formed by the corrugations in the re-' spective sections and the .tieplate 7, which 1n this form spans all three corrugations and is-secured to all three sections.

' substantially from margin to margin of the sections, said sections having their meeting edges secured together, and a tie plate extending continuously from margin to margin of the sections and overlapping said corrugations and secured to'the respective sections by lines-of fastenings on both sides of the respective corrugations.

3. In a car end, a pair of sheet metal sections provided at their opposite margins A with means for attachment to car framing members and provided adjacent-their meeting e'dges with longitudinal corrugations extending approximately to their opposite margins, said sections having their meeting edges overlapped and secured together, and a tie plate overlapping said corrugations and secured to said sections at opposite sides of said corrugations, said tie plate being provided at its opposite ends with means whereby it may be afiixed to a car.

4. In a car end, a pair of sheet. metal sections liaving their meeting edges secured together and each provided with an outwardly pressed corrugation adjacent said edges, and

a tie plate overlapping the reentrant sidesof said corrugations and secured to the sections, said tie plate extending continuously between opposite margins of the sections.

5. In a car end, a pair of sheet metal sections having their meeting edges secured together and provided adjacent said meeting edges with outwardly pressed corrugations forming truss" members extending substantially from margin to margin of the sections, and a tie plate secured to said -'sec tions on the inner side thereof, and forming a truss member codperating with said vcorrugations. r

6. In a car wall structure, a pair of sheet metal sections having their meeting edges secured together and provided adjacent thereto with longitudinal corrugations, and a tie plate secured to said sections at opposite sides of said corrugations and cooperating therewith to form box girders in the wall structure.

7 In a car end, a pair of sheet metal sections having their meeting edges secured together and provided adjacent thereto with longitudinal corrugations, and a tie plate secured to said sections and cooperating with said corrugations to provide a pair of juxtaposed box girder members extending'intermediate opposite margins of the end structure.

I 8. In a car end, a pair of sheet metal sections having their meeting edges secured together and provided adjacent thereto with longitudinal corrugations and offset portions and a tie plate disposed in the offset portions and secured to the respective sections across their line of jointure.

9. In a car end, a pair of sheet metal sections having their meeting edges secured together and provided adjacent thereto with longitudinal corrugations, said sections being further provided with corrugations extending in directions transverse of said longitudinal corrugations, and a tie plate overlapping said longitudinal corrugations and the near extremities of said transverse corrugations and secured to the respective sections intermediate the extremities of the transverse corrugations thereon.

10. In a car end, a pair of sheet metal sections, a tie plate overlapping the meeting edges thereof and secured to the respective sections, each of said sections-being provided with a longitudinal corrugation disposed intermediate the edges of said [tie plate, and said sections being provided with transverse corrugations terminating intermediate the edges of said tie plate.

11. In a car end, a pair of sheet metal sections having their meeting edges secured together, one of said sections being provided with a longitudinal corrugation extending substantially parallel to said meeting edges, and a tie plate secured to both of said sections along the meeting edges and cooperating With said corrugation to form a box girder extending longitudinally of the sections adjacent their conjoined edges.

12. In a car end, a pair of sheet metal sections disposed together to form a wall and having their meeting edges conjoined, each of said sections being provided with a corrugation extending longitudinally thereof along the lineof jointure, and a tie plate disposed across, the reentrant sides of said corrugations and secured to the sections along the line of jointure intermediate the corrugations and along the remote sides of the corrugations, and cooperating therewith to provide a reinforcing member extending longitudinally of the sections.

In testimony whereof I hereunto afiix my signature in the presence of two witnesses, this 27th day of February, 1915.

PAUL M. BEARD.

Witnesses OSCAR HooHBnRG, RODNEY BEDELL.

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