US1030757A - Brake-beam. - Google Patents

Description

H. ZIEMSS, JR.

BRAKE BEAM.

APPLICATION FILED FEB.21,1912.

"Q Q L [L Mn/asszs Mrs/wol 'a/rww. HENRY Z/EMSSJIf. ,W W M COLUMBIA PLANOGRAPH c0" WASHINGTON, u. c.

EETTED STATES PATEN T EETEE.

HENRY ZIEMSS, JR., OF CHICAGO, ILLINOIS, ASSIGNOR T0 CHICAGO RAILWAY EQUIP- MENT COMPANY, OF CHIOAGO ILLINOIS, A CORPORATION OF ILLINOIS.

BRAKE-BEAM.

Specification of Letters Patent.

Patented June 25, 1912.

Application filed February 21, 1912. Serial No. 679,177.

T 0 all whom 2'25 may concern.

Be it known that I, HENRY ZmMss, J r., a citizen of the United States, residing at Chicago, State of Illinois, have invented a certain new and useful Improvement in Brake-Beams, of which the 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, in which Figure 1 is a top plan view of my improved brake beam. Fig. 2 is a fragmental edge elevation of the beam. Fig. 3 is a sectional view of the compression member. Fig. 4 is a sectional view of a modified form of compression member.

This invention relates to a new and useful improvement in brake beams, the object being to provide a simple, cheap and strong beam, the essential feature of which consists in splitting and separating the web compression member from its flanges, so as to form a trussed member. Means are also provided for spacing and holding together the split portions of the compression member.

In the embodiment selected for illustration, the brake beam comprises a compression member 1 of trussed construction, a tension member 2, and a strut 3 extending between the middle portions of said com pression member and said tension member. The compression member may be formed from a commercially rolled beam, such as a channel or U-shaped bar, the channel por- -tion preferably facing toward the tension member 2 of the beam. In making the compression member 1, a pair of slits 4 are out longitudinally through the back portion of the channel bar, said slits forming between them a longitudinal portion or strip 5 integral at its ends with the channel bar. The strip 5 is then bowed or bent laterally out of its normal position in the body of the bar, and is held in such bowed position by strut means which may be integral with the main strut 3. The side portions of the compression member may be spread apart, as indicated in Fig. 2. The strut means above referred to comprise a portion 6 integral with one end of the strut 3, which portion surrounds the compression member 1 and has two lugs 7 thereon to hold the side por' tions of the compression member spread apart, as shown in Figs. 2 and 3. Lugs or ribs 8 upon the strut 3 determine the outward bend of the strip 5, and said strip may be held in its bowed position by means such as lugs 9 on the strut 3 bent into engage ment with the strip. If desired, sleeves 10 may be placed on the compression member to strengthen the same.

The ends of the tension member 2 lie in the channel of the compression member 1, and a sleeve 11 is placed upon the ends of the tension and compression members, the ends of the tension member extending beyond said sleeve, and having nuts 12 threaded thereon to secure said members together and to give the compression member more or less camber. The brake heads 13 are supported upon the sleeves 11. If desired, the compression member 1 may be in the form of an I beam, as shown in Fig. 1, the strip 5 being formed by slitting the web of the beam and bowing said strip laterally, as clearly indicated in said figure.

What I claim is:

1. A brake beam comprising a compression member, a tension member, a strut eX- tending between said members, said compression member comprising a body portion having a longitudinal portion divided therefrom, said longitudinal portion being bowed away from said body portion, and means for holding said longitudinal portion in such bowed position.

2. A brake beam comprising a compression member having a longitudinal portion bowed away from the body of said member, a tension member, truss means extending between said tension and said compression members, and means carried by said truss means for holding said longitudinal portion in its bowed position.

3. A brake beam comprising a tension member, a compression member having a longitudinal strip bowed therefrom, truss means extending between said tension and said compression members, and lugs on said truss means for holding said strip in its bowed position.

4:. A brake beam comprising a compression member formed by cutting a longitudinal strip from the body of said member, bowing said strip out of its normal plane, and spreading the portions at opposite sides of said strip, a tension member, truss means extending between said tension member and said compression member, and means carried by said truss means for holding said strip in its bowed position and for holding said portions spread apart.

5. A brake beam comprising a compression member, a tension member, a truss extending between said members, said compression member being formed from a channel bar, the back of which has a longitudinal strip bowed laterally out of the plane of said back, and means for holding said strip in such bowed position.

6. A brake beam comprising a tension member, a compression member formed from a channel bar, said bar facing toward said tension member and having a longitudinal strip cut from its back and bowed toward said tension member, and truss means extending between said tension member and said compression member, said means having a portion for holding said strip in its bowed position.

7 A brake beam comprising a tension member, a compression member having a longitudinal portion divided therefrom and bowed laterally toward said tension member, and truss means extending between said tension member and said compression member, said means holding said strip in its bowed position.

8. A brake beam comprising a tension member, a compression member formed from a channel bar, the back of which has I a longitudinal strip bowed laterally away therefrom, a truss extending between said tension member and said compression member, and projections on said truss engaging said strip to hold it in its bowed position.

9. A brake beam comprising a tension member, a compression member formed from a channel bar, the back of which bar has a longitudinal strip bowed laterally away therefrom, a truss extending between said tension member and said compression member, the end of said truss adjacent the compression member surrounding said member, and lugs on the truss engaging said strip for holding the latter in its bowed position.

10. A compression member for brake beams having a longitudinal portion bent laterally away from the body of the member, the parts of the member at opposite sides of said longitudinal portion being spread apart, and means for holding said longitudinal portion and said side parts in the said positions. V

11. A trussed member for brake beams comprising a commercial rolled beam having a longitudinal strip bowed out of its normal plane, the portions of the beam at opposite sides of said strip being spread apart, and means for holding said strip and side portions in the said positions.

In testimony whereof I hereunto atfix my signature in the presence of two witnesses, this 6th day of February, 1912.

HENRY ZIEMSS, JR. \Vitnesses:

ARTHUR M. HAMMANN, ROBERT W. HAMMANN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. G.

Images