US1512234A

US1512234A - Car end

Info

Publication number: US1512234A
Application number: US609010A
Authority: US
Inventors: Walter P Murphy
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-06-04
Filing date: 1922-12-26
Publication date: 1924-10-21
Anticipated expiration: 1941-10-21
Also published as: US1591990A

Description

W. P. MURPHY CAR END Original Filed June 4, 1920 Patented 9st. 21, 15924.

parta e stares 1,512,234 hATEWT @FFHCE.

WALTER P. MURPHY, OF NEW YORK, N. Y.

CAB Fhlltl'ill Original application filed June 4, 1920, Serial No. 386,477. Divided and this application filed December as, 1922. Serial mi 609,010.

To all whom it may concern:

Be it known that I, WALTER P. MURPHY, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements .in Car Ends, of which the following is a specification.

My invention relates to reinforced metal end wall structures for railway cars, more particularly for box cars in freight service, and this application isa division of my coiplending application, Serial Number 386,477

led June 4, 1920.

The primary object of my invention is the provision of an improved sheet metal end wall, formed of one or more sections, which will be soreinforced as to withstand more adequately than structures of this sort heretofore constructed not only the stresses and strains set up by the thrusts against the same of shifting cargoes, but also the stresses and strains set up by the swaying and weaving of the car in transit, or those resulting from the stopping or starting of the train and the shock of one car against another in switching. It is particularly difficult to reinforce a box car against distortions of its superstructure due to the swaying and weaving thereof. Such swayin and weaving both lengthwise of the car am laterally thereof is caused, not so much by the contents of the car as by the inertia of the car body resulting from its height, bulk and arrangement above the planeof the forces, normal and abnormal, to which the car is subjected in service. 1

My invention consists in forming the sheet or sheets composing the end wall with vertical and diagonal corrugations, so disposed as to very effectively resist the forces tending to rupture, bend or distort the end wall, thereby preventing the weaving of the car body as a whole.

In the drawing,

Fig. 1 is a view in elevation of a car having an end wall constructed in accordance with my invention, and

Fig. 2 is a fragmentary side elevation of the car with certain parts of the car structure broken away and others in section.

Like characters of reference designate like parts in the two figures of the drawing.

In the drawing, my improved car end construction is shown as comprising a plate or panel 10 of sheet metal formed preferably in two sections '11 and 12, which are overlapped and suitabl riveted together along the vertical centra line 13 of'the car and are of such size and contour as to form the entire end wall of'the car body. The sections 11 and 12 are preferably formed with vertical marginal flanges 14 overlapping the side walls of the car by means of which the end sheet may be secured to the side framin of the car. The upper end of the end s eet is preferably formed with an inwardly extending flange 15 for securing the upper edge of the sheet to the roof of the car, which flange preferably increases in width toward the side of the car, as shown) in Fig. 2, and has its extremities bent downwardly toform attaching flanges 16 adapted to be bolted or otherwise secured to the sides of the car. The lower edge of the sheet is preferably secured to the under frame by means of two angle irons 17 and 18, between which the sheet is riveted or otherwise suitably fastened.

For the purpose of convenience I have illustrated a common form of roof structure 19. The particular design of roof structure used with my inventiom is obviously im-- material. In the construction of the drawing a diagonal brace 20 is shown (Fig. 2) running from the upper end of the car downwardly, to assist in bracing the car superstructure. The car may be provided with a wooden lining 21 extending either partially or entirely up the side of the car. At 22 I have shown a wooden lining for the end sheet. The use of a lining is optional. 23 designates the floor of the car and 24 one of the center sills of the car underfrarne.

The sections 11 and; 12 are formed with vertical corrugations and 12, respectively, extending substantially to the upper and lower .edges of the sheet and ta ring at the ends so as to mer e into the s eet. These corrugations are p aced ad'acent the riveted edges of the sections and orm, in efi'ect, an end post for taking up the usual stresses imposed on an end post, such as the roof load and thrusts of the cargo. In order to further stiffen the end wall both against distortion from cargo thrusts and distortion because of weaving and swaying stresses, I form the sections 11 and '12 of the end wall with a plurality of

diagonal corrugations

25, 26, 27 and 28, as shown. These corrugations extend from the opposite extremities of the corrugations 11 12, just referred to, and converge toward the outer margins of the sheet. The stresses set up by reason of the swayin of a railway box car in transit have a ten enoy to bend the end sheets about a diagonal axis extending from one upper corner downwardly to the region of the opposite lower corner. Such stresses tend to move the upper corners of the sheet relatively both to each other and to the under frame of the car and in directions both lengthwise and sidewise of the car. The above described arrangement of the diagonal corrugations with the centrally dis-' posed upright corrugations provides a very efiective means for resisting such stresses and thereby preventing the distortion of the car body. The diagonal corrugations, extending from oints of convergence adjacent the upper and lower extremities of the central corrugations and also converging adj acent the outer margins of the sheet substantially midway between the roof and floor of the car, transmit a portion of the thrusts and other stresses imposed on the vertical corrugations to the side framing of the car.

An end sheet formed as herein shown, with reinforcing corrugations running both vertically and diagonally, is not onl stiff and strong in itself, so as to be capa le of withstanding cargo thrusts, but also, there-' fore edectively resists the tendency of the car body to Weave.

The end sheet shown herein may be formed of a single piece of material, but owing to the difiiculty of handling a single sheet and also of the waste resultmg from distortion of the-same when pressing the corrugations therein, it is preferable to formthe end sheets of two or more sections, preferably two, as above described. The car structure is further rigidified by means of a diagonal brace 29 on each side of the car which is secured to the marginal flanges 14: of the end sheet, at the point 30 near the meeting point of the pair of diagonal corrugations. The braces 29 extend downwardly and are secured, as shown at 31, to the underframe of the car. These diagonal braces transmit stresses from the

diagonal corrugations

25, 26 and 27, 28 to the underframe of the car. By a very simple construction an effective reinforcement of the car is provided which does not involve the difficulties encountered in pressing a large number of corrugations in the end sheet.

I claim:

1. A sheet metal end structure for railway cars having a pair of vertical corrugations therein forming an end post and having diagonal corrugations formed therein extending from the upper extremities of said vertical corrugations substantially to the edge of the end sheet to resist distortion of said end structure.

2. An end structure for railway cars comprising a. sheet metal panel having a vertical reinforcement therein to provide an end post and having diagonal corrugations formed therein extending u wardly and outwardly from the region of t e lower extremity of said reinforcement to points intermediate the upper and lower margins of said panel adjacent the vertical edges thereof, and rearwardly extending dia onal braces secured to said panel adjacent the upper extremity of said corrugations and attached to the under frame of the car.

3. A sheet metal end structure for railway cars comprising two sections riveted together along their meeting vertical edges formed with a pair of vertical corrugations adjacent said riveted edges providing an end post and formed with a pair of diagonal corrugations extending downwardly and outwardly from the upper extremities of said vertical corrugations and terminating near the outer vertical marginal portions of the sheet.

4. A sheet metal end structure for railway cars comprising two sections riveted together along their meetin vertical edges formed with a pair of vertical corrugations adjacent said riveted edges providing an end post and formed with a pair of diagonal corrugations extending downwardly and outwardly from the upper extremities of said vertical corrugations and terminating near the outer vertical marginal portions of the sheet at points intermediate'thei upper and lower edges of said sheet.

5. A sheet metal end structure for railway cars comprising two sections riveted together along their meeting vertical edges formed with a pair of vertical corrugations adjacent said riveted edges providing an end post and formed with a pair of diagonal corrugations extending from the upper extremities of said-vertical corrugations to the outer vertical marginal portions of the sheet at points approximately midway between the upper and lower edges thereof, and brace members for securing the end sheets adjacent the lower extremity of said diagonal corrugations to the underframe of the car.

6. The combination with the underframe and side walls of a railway car, of a metal end shcet'provided with marginal attaching flanges to secure said end wall to the underframe and superstructure of a car, composed of two sections riveted together along their meeting vertical edges and formed with a pair of corrugations adjacent said riveted edges providing an end post and formed with disconnected diagonal corrugations extending from the upper aeiaaee and lower, extremities of said vertical corrugatlons and converging toward the man gins of said sheets to resist distortion of said end sheet and diagonally extending members smured to the underframing of the car. and to said. end sheetadjacent the points of convergence of said diagonal corrugations. v

7. The combination with the underframe and side walls of a railway car, of a metal end sheet secured to said underframe and side walls and composed of two sections riveted together along their meeting vertical ed es formed with a pair of corrugations a acent said riveted edges, terminating within the edges of the sheet and con stituting an end post and with diagonal corrugations formed therein extending from the extremitiesof said vertical corrugations substantially to the lateral edges of the end sheet for resisting distortion of said end sheet by' weaving stressesan'd for transmitting such stresses to the underframe of the car. 7

8. A sheet metal end structure for railway cars having a pair of vertical corrugations therein constituting an end post and having dia onal corrugations formed therein exten ing from the upper and lower extremities of said vertical corrugations substantially to the edge of the and sheet.

9. A sheet metal end structure for railway cars havingapair of vertical corrugations therein constituting an end post and having diagonal corrugations formed therein extending from said vertical corrugations and converging toward the outer man gin of the sheet.

10. A sheet inetal end structure for rail way carsh'aving a pair of vertical corrugations therein constituting an end post and having diagonal corrugations formed therein extending from the upper and lowerextremities of said vertical corrugations and converging toward the outer margins of the sheet.

11. The combination with the underiirame and side walls of a railway car, of a metal end sheet secured to said underirame iii" and side walls and composed of two sections riveted together along their meeting vertical edges and having a pair of corrugations ad acent said riveted edges constituting an end post and having dia onal corrugatlons formed therein exten mg from the upper and lower extremities of said vertical corrugations and converging toward the margins. of said sheet, and diagonally extending truss members secured to the underframing of the car and to said end sheet ad'acent the points of convergence of said iagonal corrugations.

12. A railway car end structure compris formed corrugations which extend down-- ward diagonally from near the upper end of said reinforcement toward the lateral edges of said panel, said diagonal corrugations, on each side of the vertical reinforcement converging to a point at the. lateral edge ofth'e panel substantially midway between the roof and floor of the car and merging into the plane of the sheet at their point of convergence.

13. In an end structure for railway cars, a sheet metal end panel provided. with a centrally disposed vertical reinforcement comprising vertical corrugations pressed in said panel the panel being formed with corrugations which extend upward diagonally from nearithe lower end of said reinforcement toward the lateral ed es ofthe panel and with corrugations whic extend downward diagonally from near the upper end of said reinforcement toward the lateral edges of said panel, said diagonally disposed corrugations on opposite sides of said reinforcement converging toward a point at the lateral edge'of the panel substantially midway between the roof and floor cf the cart