US1145547A - Pressed-steel carline. - Google Patents

Description

W. A. BREWER.

PRESSED STEEL CARLINE.

APPLICATION FILED Aue.I9. 1914.

Patented July COLUMBIA PLANOORAPH cm, WASHXNGTDN. D. c.

Fl i

WILLIAM A. BREWER, .OF PITTSBURGH,PENNSYLVANIA, -ASSIGNQR TO'P. I-I. MURPHY COMPANY, OF PARNASSUS, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

I PRESSED-STEEL CARLINE.

master.

Specification of Letters Patent;

Patented July 3, 1915.

:Applicationfiled. August 19, 1914. Seria1Noa857A33.

To all whom it mayconoem Be it known that I, WILLIAM A. BREWER, a citizen of the United States, and a resident of the city of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Pressed-Steel Car-lines, of which the following is a specification.

My invention relates to carlines TOI'rl'fl-llway box cars and similar cars; and has for its objects to provide a metal carline which can be cheaply made and which will have the metal distributed therein to produce a strong and yet light carline; gtoprovide a carline which can be strongly fastened to the side plates of the car without cutting said side plates to any great. extent; and to attain certain advantages which will be more fully set forth hereinafter.

In the accompanying drawing which forms part of this specification, and in which like symbols refer to like parts throughout, Figure 1 is a top plan view of part of a carline embodying the invention, showing the ridge pole and purlins attached to said carline, and said carline attached to one of the side plates of the car; Fig. 2 is a side elevation of part of the carline showing the ridge pole, purlins and side plate in vertical section; Fig. 3 is a cross-section on the line 33 on Fig. 2; and Fig. 4; is a crosssection on the line 4c4; on Fig. 2.

The carline shown in the accompanying drawing is preferably made of a single metal plate. Said plate is bent along longitudinal lines to form a carline which is substantially Z-shape in cross-section. Said carline comprises a vertical web 1, an upper flange 2, and a lower flange 3. The outer longitudinal edge portion of the lower flange 3 is bent upwardly to form an auxiliary flange 4 on said lower flange. The outer longitudinal edge portion of the upper flange 2 is bent downwardly to form an auxiliary flange 5 on said upper flange.

The web 1 has its greatest depth or vertical height at the middle of the carline, and

the depth of said web decreasesuniforrnly toward the ends of said carline. The lower flange 3 is widest at the middle of the carline, and the width of said lower flange de creases uniformly toward the ends of said carline. The upper flange 2 is narrowest at the middle of the carline, and the width of said upper flange increases toward the ends of the carline proportionately to the amount that the web 1 decreases in height and the lower flange 3 decreases in width. Vertically extending corrugations 6 are pressed out of web 1 at intervals throughout its length and preferably alternately in opposite directions therefrom. A longitudinally extending corrugation 7 is pressed up from each end portion of the upper flange 2.

Each end portion of the carline is constructed the'same and is fastened to each s de plate in the same way; and a descriptlon of'the connection between one side plate and the carline will suflice for both. The web 1 of the carline is 'cut away from the upper flange 2 and the lower flange 3 for a short distance inwardly from the end of the carline. The end portion 8 of the upper flange 2, which projects beyond the end of the web 1, is longer than the corresponding end portion 9 of the lower flange 3. The auxiliary flange 5 of the upper flange 2 is flattened out for a short distance inwardly from the end of said flange. The auxiliary flange 4 of the lower flange 3 is also flattened out for a short distance inwardly from the end of said flange. The end portion 9 of the lower flange 3 is bent along a line extending transversely of said flange to can tend downwardly in the plane of the end of the web 1. A shallow groove is cut in the upper face of the wooden side plate 10, and the end portion 8 of the upper flange 2 is fitted in said groove, the end of the web 1 and the end portion 9 of the lower flange 3 being in contact with the inner face of the side plate 10. The tip end portion 11 of the upper flange 2 is bent downwardly to engage the outside face of the side plate 10. The carline is secured to the side plate 10 by bolts, one bolt 12 passing horizontally through the end portion 9 of the lower flange 3; another bolt 13 passing horizontally through the tip end portion 11 of the upper flange 2; and two bolts 14: passing vertically through theend portion 8 of the upper flange 2. The ridge pole 15 and the purlins 16 are bolted to the upper flange 2 of the carline at the desired points.

A carline is subjected to a greater downward stress at-the ridge, due to the weight of the car roof, than at the eaves. At the eaves where the carline is connected to the side plates, it is subjected to a horizontal bending stress when the car is in service, due

to the tendency of the framing ofthe car to be thrown out of line. The carline shown and described has its greatest depth or vertical height at the ridge, and its greatest width at the eaves. Thus, the metal is distributed in the carline to the best advantage.

. said top flange is subjected to a sidewise bending. The auxiliary flanges 4E and 5 stiffen the lower flange 3 and upper flange 2, respectively.

When the carline is applied to wooden side plates, it is not necessary toeut said side plates to any great extent). shallow groove as deep as the thickness of the upper flange 2 being all that is necessary. The carline is shown applied to wooden side plates, but it may be applied tometal side plates; and when applied to metal side plates, the Wooden fillers generally used for making the top of the side plates between the carlines even with the tops of the carlines need not be thick.

The upper flange 2 and the lower flange 2 3 of the carline engage the outside face and the inside face respectively of each side plate 10; and thus the side plates are 7 strongly held against movement either closer thereof, and an upper flang d a lower flange projecting horizontally from said web in opposite directions, said upper flange increasing in width from the middle of the carline toward the ends thereof, said lower flange decreasing in width from the middle 45 of the carline toward the ends thereof.

WILLIAM A. BREWER. Witnesses:

J. P. DESMOND, (Ms. C. SHORT.

Gopiesof this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. 0.

Images