US794252A - Draft-beam for railway-cars. - Google Patents

Description

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DRAFT BEAM FOR RAILWAY GARS.

` APPLICATION FILED AUG. 5. 1904.

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iii/msgs r No. 794,252. PATENTBD JULY 11, 1905. W. P. RICHARDS. `DRAFT BEAM FOR RAILWAY GARS.

APPLICATION llLED AUG. 5, 1904.

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No. l794:,252.

UNITED STATES Patented July 1 1 1905.

PATENT OEEICE.

VVILLAED F. RICHARDS. OF BUFFALO, NEITv YORK, ASSIGNOR TO GOULD OOUPLER COMPANY, OF NEW YORK, N. Y.

DRAFTfBEANI FOR RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent No. 794,252, dated July 11, 1905.

Application filed August 5, 1904. Serial No. 219,602.

To (1r/ZZ whom, t may concern:

Be it known that I, WILLARD F. RICHARDS, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented a new and useful Improvement in Draft-Beams for Railway-Cars, of which the following is a specification.

This invention relates to draft-beams for railway-cars, and more particularly to composite metal draft-beams composed of commercial rolled-steel beams and castings.

The draft-beams are secured beneath the center sills of the car and usually extend from the body-bolster to the end sill of the car and carry the draft and bufng attachments. The outer ends of the draft-beams usually extend beneath and must be suitably shaped to conform to the end sills, which vary somewhat in dimensions and in contour in cars of different construction, and in the case of draft-beams consisting entirely of flanged steel beams this means that the {ianges must be eut and the stiness and rigidity of the beams thus materially lessened. Draft-beams made entirely of cast or malleable metal can be formed in the necessary shapes, but they are unduly heavy, cumbersome', and expensive to manufacture.

The object of this invention is to overcome these objections in draft-beams made in whole of steel beams or castings by providing strong, rigid, light, and comparatively inexpensive composite draft-beams consisting in part of flanged steel beams and in part of castor malleable metal.

In the accompanying drawings, consisting of two sheets, Figure l is a longitudinal sectional elevation of a portion of a car-frame provided with draft-beams embodying theinvention. Fig. 2 is a view thereof one-half in plan and one-half in horizontal section and showing bybroken lines a tand em-spring draftgear applied thereto. Fig. 3 is a transverse sectional elevation thereof. Fig. 4 is a view one-half in plan and one-half in horizon tal section, showing draft-beams employed for friction draft-gears.

Like letters of reference refer to like parts in the several figures.

A represents the center sills, b the body-bolster, and c the end sill, of a railway-car, the same being of well-known construction and arrangement.

Referring-particularly to Figs. 1 to 3, which illustrate draft-beams employed for the wellknown tandem-spring draft-gear, D D represent the draft-beams, which are located longitudinally beneath the center sills between the body-bolster and the end sill and are secured to the center and end sills. Each draft-beam comprises a rolled-steel beam E,'extending from the bod y-bolster to the end sill and having parallel flanges extending practically throughout its length and a part F of cast or malleable metal. A steel channel-beam is preferably employed arranged with its web vertical and' its top and bottom flanges projecting laterally outward. The cast or malleable part F has an attaching extension f, which is rigidly secured by rivets or the like f on the inner face of the outer 'end of the steel beam and is reduced in depth or otherwise fashioned to extend beneath and conform to the end sill. The cast or malleable metal part F has an outwardly-projecting vertical rib or web f2, against which the outer end of the steel beam abuts to relieve the rivets f connecting the parts of the draft-beam from shear, and is provided with an upwardly-extending lug f3, which bears against the inner face of the end sill to transmit the draft strains thereto. The composite draft-beams made as described are secured to the center sills of the car by vertical bolts g and to' the end sill by vertical bolts g in the usual manner. The inner ends of the draft-beams are attached to the body-bolster, as by riveting them to lugs t, formed on or secured to the bolster.

If desired, the cast or malleable outer portions of the beams can be extended inwardly and formed with integral projections or ribs z' and longitudinal flanges z" to constitute abutments and guides on the inner sides of the beams for the movable followers of the draftrigging, as shown in Fig. 4. In the preferred construction, (illustrated in Figs. l to 3,) however, the cast or malleable part of the beam is not made so long and is provided at its inner end with a single rib or projection 7c, which constitutes the outer abutment or stop for the outer or front follower of the tandem-.spring draft-gear, while the inner abutment or stop 7c for the inner or rear follower and theintermediate abutments or stops 192 for the followers consist of separate castings or parts riveted to the channel-beam part of the draft-beam. The follower-guides in this construction are preferably formed by wrought-metal bars Z, riveted or bolted to the upper and lower sides of the castings forming the abutments or stops.

The composite draft-beam constructed as shown and described has the requisite stiffness and strength between the end sill and body-bolster supplied bythe rolled-steel beam with the continuous or unbroken parallel flanges, and the cast or malleable outer portion of the draft-beam can be made of sufficient weight or provided with sufiicient strengthening ribs and flanges to give it the necessary strength, while permitting it to be made of less depth than the iianged steel beam or of the irregular shape required to properly conform to the car-end construction and properly position the draw-bar. The composite beam is lighter, less cumbersome, and less expensive than an all-cast beam of the same strength and is stronger than one consisting entirely of a iianged steel beam cut to conform to the car-end construction.

I claim as my invention-- 1. A composite metal draft-beam comprising two separate parts rigidly secured together, one of said parts consisting of a steel beam having flanges extending throughout substantially its entire length, and said other part extending beyond the end of and constituting a longitudinal continuation of thel steel beam, and being shaped to conform to the end sill of the car, substantially as set forth.

2. The combination with a car having an end sill, of a composite metal draft-beam therefor comprisinga flanged beam which terminates at or near the innerside of the end sill, and a separate metal part which is secured to the flanged beam and extends under and is secured to the end sill, substantially as set forth.

3. A composite metal draft-beam for railway-cars, comprising asteel beam having parallel ianges extending continuously throughout substantially the entire length thereof, and a cast-metal part which is riveted to and extends longitudinally beyond the end of said flanged beam and is shaped to conform to the end sill of the car, substantially as set forth.

4. A composite metal draft-beam for railway-cars, comprising a steel beam having flanges extending continuously throughout substantially the entire length thereof, and a cast-metal part which is rigidly attached to and extends longitudinally beyond the end of said ianged beam and is shaped to conform to the end sill of the car, said cast part having an integral portion which constitutes an abutment for the follower of the draft-gear, substantially as set forth.

5. A composite metal draft-beam for railway-cars, comprising a steel beam having flanges extending continuously throughout substantially the entire length thereof, a castmetal part which is rigidly attachedto and extends longitudinally beyond the end of said flanged beam and is shaped to conform to the end sill of the car, and abutments for the followers ofthe draft-gear secured to said flanged beam, substantially as set forth.

6. A composite metal draft-beam for railway-cars, comprising a flanged beam and a separate metal part which is rigidly attached to and extends longitudinally beyond the end of said flanged beam, and has an integral projection against which the end of the flanged beam abuts, and a lug which abuts against the end sill of the car, substantially as set forth.

7. A composite metal draft-beam for railway-cars, comprising a channel-beam arranged with its web vertical and its lianges projecting outwardly, said flanges extending continuously throughout substantially the entire length of the channel-beam, and a castmetal part riveted to the inside of the web of said channel-beam and having an inwardlyprojecting lug which constitutes an abutment for a follower of the draft-gear, said castmetal part being shaped to conform to the end sill of the car, substantially as set forth.

Witness my hand this 28th day of July,

VVILLARD F. RICHARDS. Witnesses:

CHAs. W. PARKER, C. M. LAMB.

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