US2944640A - Railway brake beam structure - Google Patents

Description

July 12, 1960 Filed Jan. 24, 1957 Theinvention relates "to railwayrolling stockbrakie beams and theirsupport from'associated truck structure.

One object of the invention is to support a brake beam in close relation to a truck frame part immediately above the beam so that the beam may have the swingmg movement provided by the usual elongated hanger suspended from the truck frame.

Another object is to adapt a brake beam end member for support by a swing hanger positioned at the rear of the beam without interfering with a desirable mounting of the head on the beam involving the presence of a rivet extending forwardly and rearwardly of the head, diagonally of the length of the beam.

Another object is to arrange the end member of a brake beam, which pivotally mounts a separate head, so that the end member and adjacent main elongated part of the beam may be secured together by a rivet extending diagonally forwardly and rearwardly of the brake head.

These and other detail objects are attained by the structure illustrated in the accompanying drawings, in which: Figure 1 is in part a top view and in part a horizontal section through a beam embodying the invention, a portion of the beam being broken away to show the parts on a larger scale. I Figure 2 is an elevation of anend of the beam with adjacent truck parts also shown. V Figure 3 is a top view of'the beam end member with the rotatable adjustable head, removed.-

Figure 4 is a detail transverse se tionon line 4- 4 .of Figure 3. i

' Figure 5 is a detail topview of one end of another form of beam embodying the invention? Equipment Company,"Chicago, 11]., a corpoi U t d W8.

i i and pression member and substantiallyat right angles toth mounting end member 4 is provided 18 (Figurell) projecting laterally from the head-mountingperiphery 6 andrearwardly from the rear faceofcompression-"member 1 (Figure 1)." A horizontal passage through bracket lug'1 8 receives a'bolt 19 by which the beam is pivotallyconnected tothe bifurcated lower rend-of an elongatedhanger' lll (Figure l) supported from '1 a' -b'racket "211pro jet ;ting rearwardly of the beam from frame member '15.-

tanned-mamas is disposed diagonally of the com maiii portionof the tension member. Its "-'h'eadsgrip correspondingly inclined surfaces on the sleeve,lthe 'fo'rwar'df surface being on a flange-like projection 6a onthe sleeve projecting laterally outwardly from the 'head' mountingperiphery, the rear surface being on a portion of the sleeve similarly inclined and forming a recess'22 in thecylindrical periphery 6 whereby the rivet head is received within the circular periphery of the brake head. Preferably, an additional rivet 23 is applied to a flange 24 on bracket 17 .and to the adjacent portion of the compression member.

With this arrangement the beam may swing to and from the wheels about the usual radius irrespective of the close approach of the truck frame to the brake beam and to the wheels.

The end member 4 may be interchanged with a brake head mounting end member which involves the suspension of the brake beam from the adjacent framing by a link connected directly to the brake head.

Figure 5 illustrates another form of the invention in -,,ing elements. The beam would be supported by swing The beam is of a truss typefembodying a compression member 1 of channel section, atension' member-2 of rectangular bar section, a strut 3 holding the intermediate .portion of the compression and tension member apart,v

end members or sleeves 4 riveted at 5 to the converged end portions of the compression and tension members. End member 4 includes a body portion having a cylindrical periphery 6. A brake head 7 is rotatably mounted on each end member cylindrical portion. A spring pressed pawl 8 is seated in each brake head and engages a ratchet 9 in the end member, whereby the head is-held in an angular position upon the sleeve determined by the application of the brake to the truck wheels. The head is provided with forwardly facing shoe mountingelements 19 for supporting the renewable shoe 11.

All the above described structure is conventional. It is common practice to support the brake beam from lateral brackets on the truck side frames by elongated swing hangers, the lower ends of which pass through or are pivotally bolted to the head body immediately at the rear of the shoe-mounting elements. The present beam support is adapted for mounting the beam on a truck frame having parts indicated at 15 and 16 extending transversely of the truck immediately over the brake beam and therefore making it impractical to suspend the beam in the usual manner. To meet this condition, the head hangers, as indicated at 20 in Figure 2.

The details of the invention may be varied otherwise than as shown without departing 'from the spirit of the invention and the exclusive use .of those modifications What is claimed is: 1 y

, comingwithin the scope of the claims'is'contemplated. I

1. A railway truss' brake beam structure comprising compression and tension members, converging from the middle of the beam towards the ends of the beam, there being rigid unitary'structure at each end of the beam 1 comprising a'member for mounting a brake head and provided with a projection extending transversely of the beam and offset from the end of the beam lengthwise thereof inboard from the brake head mounting and inrounding the ends of the compression and tension members and seated thereon and holding them assembled and adapted to mount a brake head, and a bracket on said portion extending therefrom inboard of the beam and having a bearing rearwardly of the beam compression member for a hanger-engaging pivot bolt.

3. A railway brake beam including compression and tension members converging from the middle of the beam towards the ends of.the beam, the ends of said with a bracket 17;

45 whichsecures sleeve l to the compression members. extending alongside. each other, there being an nd. member. e h nd of, he. beam with. av sleeve-like body portion surrounding the ends of the compression and tension members and seated thereon, a brake head ro a ahly mounted. on. saidend 'memberr, there. being a bracket on: the,- rear of said and member extending in board from said, body, portion andzprovidedswith, a hangetreceiving; lug; offset rearwardly of theeomgression memr belt, and a rivet extending, through, said: compression and; tension members. and diametrically through thepaet ofsaidsleeve-like body portion: nearestit-hel end of the. beam. 4t. A railway brakebeam according to-claim 3- in; which; the rivet is inclined to the length ofthebeamz and the; periphery, of. the end, member is recessed. to.- accommodate helr r; head of the rivet etweenythesides oi. the: brake: head.

. A; railway; brakebeam end; member constructedand anra nged to mount an. adjustable brake: head; and}. GQHl-r prising a body part with-a. cylindrical sea-tkforx the bnake; he d, and provided, with. an. axial-v passage; for receiving the: ends, ot a, truss type brake beam compression and,

tension member, there being alateral extension on; saidbody" at one 'side of said seat and disalig ned' with said eatlengthwise. of. the. beam. n provid d. with. an. open.-

ing for receiving a brake beam hanger inboard of the brake beam head.

6. A railway truss type brake beam end lock member having a brake head mounting body portion and having a rearwardly extending hang er engaging part ofiset inboard from the head mounting body portion;

References Cited in the fileof this patent UNLTE-B STATES PATENTS 361,009 Hien ...Q Apr; 12; 1887 362,773 H Neichter' May 10, 1887 485,823 Robischung Nov. 8, 1892 902,055 Crone Oct. 27, 1908 1,213,996 Applebaugh et a1 Jan. 30, 1917 1,349,407 Burton Aug. 10, 1920 1,389,121: Bur-ton, Aug. 30,. 1921 2,515,886- Moline. July 18, 195.0? 2,597,287 Busse M-ay20,i1 952 2,722,292. Qpsahl Nov. 1,.1955

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