US475802A - B rake-beam - Google Patents

Description

(No Model.)

H. B. ROBISOHUNG.

BRAKE BEAM.

Patented May 31 UNITED STATES PATENT OFFICE.

HENRY B. ROBISCHUNG, OF KALAMAZOO, MICHIGAN, ASSIGNOR TO THE NA- TIONAL HOLLOW BRAKE BEAM COMPANY, OF CHICAGO, ILLINOIS,

BRAKE-BEAM.

SPECIFICATION forming part of Letters Patent No, 47 5,802, dated May 31, 1892.

Application filed September 28, 1891. Serial No. 407043- (No model.)

To aZZ whom it may concern: I will now proceed to describe my inven- Be it known that I, HENRY B. ROBISOHUNG, tion more specifically, so that others skilled acitizen of the United States, residing at Kalain the art to which it appertains may apply mazoo,i11 the county of Kalamazoo and State the same. 5 of Michigan, have invented certain new and In the drawings, which, for purposes of useful Improvements in Brake-Beams; and I illustration, show a trussed cambered beam, hereby declare the following to bea full,clear, A indicates the compression member, B the and exact description of the same, reference tension-rod or tension member, and C the being bad to the accompanying drawings, in brake-heads, all of which may be of any of the IO Whicllseveral well-known forms.

Figure 1 is a plan view of a brake-beam D indicates the strut or post, which is comcomplete, having a strut or post embodying posed of a number of sections or members, my invention. Fig. 2 is a detached View, preferably four in number, so formed as to partly in section, of a strut or post, showing interlock and support each other.. When 15 the character of the union between the lateral composed of four sections or members, there and end sections thereof. Fig. 3 is a detail are preferablytwoendmembersViz.,1,wh1ch perspective view of the parts composing the is the collar for the compression member A or strut or post. Fig. 4 is a transverse section beam-collar, and 2, which is the nose-piece and of the post or strut on the line w 00, Fig. 1, informs the seat for the tension-rod B-and the 20 dicating by dotted lines the reversible charlateral sections 3 3, which form the support acter of the structure. Fig. 5 is an elevation of the brake-lever L. The beam-collar 1 and of the preferred form of beam-collar. nose-piece 2 are each provided with an annu- Like symbols refer to like parts wherever lar flange 1 2 adapted to enter correspondy ing recesses in the twin lateral sections 3 3,

2 5 My' invention relates to trussed brakeand the nose-piece 2 may have eithera curved beams, and is particularly directed to the seat or a slot for the passage of the tensionproduction ofastii'f and strong reversible post rod B, according as required by the general or strut therefor and to means whereby all character of thestructure. The beam-collar slack between the coacting parts is taken up, 1 in ordinary trussed beams and even in cam- 0 so as to uniformly distribute the strains and bored beams, if desired, may be the usual avoid torsional strains on the compression closed collar; but in case of camberedbeams member of the beam. I prefer to form the same with a slot 1 (see To this end the main feature of my inven-' Fig. 5) to obtain an open spring or clamption embracesthe combination, in a strut or collar, so that when said end member or beam 8 5 post, of lateral and end sections or members, section 1 is clamped by the lateral sections 3 together with means for causing the said sec- 3 all slack between the beam and strut shall tions to bind upon and support each other, be taken up. whereby a rigid and strong structure is ob- 3 3 indicate the lateral sections which contained. stitute the intermediate portion of the post 40 A secondary feature and one which relates and connect the end sections 1 and 2. Each more especially to cambered brake-beams, of said sections is provided with a recess at embraces the combination, with a strut or each end, as at a b, to receive the annular post, of a divided compressible or clampflanges 1 2 of the end members 1 and 2, is beam collar adapted to hug the compression recessed, as at 3', to form a lever-slot to ac- 5 member of the structure and take up any commodate the brake-lever L, and should slack between said member and the strut or have bolt-holes 3 and 3 to receive the clamppost. ing-bolts 4 (or equivalent clamping mechan- There are other minor features of invenism should be provided to secure the mem- 7 tion relating to particular features of the comhere together) and the pivot 5 of the bracket- 5c bining parts, all as willhereinafter more fully lever L.

appear. in addition to the features before specified I prefer to form on either one or both of the lateral pieces 3 3 between the brake-lever slot and the bolt-holes 3 3, preferably adjacent to said bolt-holes 3 3, ribs or heads 6, which, coacting with the bolts 4, cause the bottoms of the recesses a a and b b to bind on the annular flanges 1 2" of the end members 1 and 2, While at the same time the said ribs or heads 6 prevent the lateral members or sections 3 3 from binding on or impeding the movement of the brake-lever L.

The construction of the several members or sections of the post orstrut being substantially such as hereinbefore specified, the parts are assembled, as indicated in Fig. 1 of the drawings, and combined by means of the bolts 4 or their equivalents, the brake-lever L having first been set to the right or left, as desired, after which the nuts 4 are tightened up by suitable means. The tightening of the nuts next to the compression member A of the beam will not only close the clamp-beam collar 1, so as to take up all slack between the compression member and the post, but will also cause the lateral members of the post to bind on and embrace the annular flanges 1 of the beam-collar, while a like tightening of the nut 4 next the tension-rod B will cause the lateral members 3 3 to bind on and embrace the annular flange 2" of the nose-piece 2, so that a practically rigid and integral strut is obtained wherein all slack is taken up and the whole body of metal in the structure bears an equal and uniform strain.

WVhen it is desired to change or shift the lever, so as to change the strut from a righthand to a left-hand strut, it is only necessary to loosen the clamping-nuts 4, turn the strut to any desired position, and again tighten the nuts, and to facilitate the setting of the lever at any desired angle indicator-notches may be formed on the shoulder K of the nose-piece 2.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. A strut or post for trussed brake-beams, composed of lateral members or sections, interposed end members, and means for causing composed of end members having projecting flanges, lateral members having recesses to receive the projecting flanges of the end members, and means for clamping the several members together, substantially as and for the purposes specified.

A strut or post for trussed brake-beams, composed of lateral members, one of which is provided on its inner face with transverse ribs or equivalent projections, interposed end members, and means for causing the lateral members to bind on the interposed end members, substantially as and for the purposes specified.

4:. A strut or post for trussed brake-beams, composed of end members, each provided with an annular flange, lateral members, each of which is provided with semicircular recesses adapted to receive the annular flanges of the end members, and means for clamping the parts together, substantially as and for the purposes specified.

5. A strut or post for trussed brake-beams, composed of end members, each of which is provided With an annular flange, lateral members, each of which is provided with a semicircular recess adapted to receive the annular flanges of the end pieces and one of which has transverse ribs on its inner face, and means for clamping the parts together, substantially as and for the purposes specified.

6. In a trussed brake-beam, the combination, with the tension and compression members, of an interposed strut or post, and a clamp beam collar for connecting the strut and compression member, substantially as and for the purposes specified.

In testimony whereof I affix my signature, in presence of two witnesses, this 26th day of September, 1891.

HENRY B. ROBISOHUNG.

Vituesses:

E. T. WALKER, E. B. LEIGH.

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