¿'ëœp? 2%, ìglä?. ' E. c-s. Bussä RMLWAY BRAKE BEAM Filed Jan. 3l, l944 2 S‘ñeeis-Sheet INVENTOJL VEDWIN (_ìBUSS'E ATTORNEY Sep't. 24, 1946. E. G.- BussE ‘ 2,408,015 RAILWAY BRAKE BEAM Filed Jan. 31., 1944 2 Sheets-Sheet 2 9”» 32 ____ , , L 9_-> \37 - @i @9.6. ¿7^ 36 35'" ì v - ' î ` 'ry/111 3 I @Fvg-El 39 , i r’lll/111 Q 1N VEN TOR . _EDWIN e. Bassa. BYÉIDLM/4 Q2 ¿î ATTORNE Y Patented Sept. 24, 1946 2,408,015 UNITED STATES PATENT oFFicr 2,408,o1_.5. RAILWAY BRAKE. Edwin G. Busse, Chicago, Ill., assìgnor to Chicago` Railway» Equipment Company, Chicago, Illa. a corporation of Illinois Application January 31, 1944,Í Serial No- 5202459 14 Claims. 1 '2 Y `The invention relates to railway brake beams ci the built-np Ítnisstype .and consists primarily the brake heads so asv to facilitate the assembly in novel end structure for such beams. bling the beam, and to accommodate support of and replacement of the head, without disassem ‘ Beams of the` type referred to usually com prise a cambered compression member oi chan nel-shape, ll-.shape or similar cross section, brake heads at the ends` ci the compression member each arranged for mounting a brake shoe and 631.011 hallìng. @t PQQKQÜ ÍOl' .IQQQÍVÍQS’ @Il .Bild Qf. lille compression member, a strut at the middle of the. beam. apert edv for the brake lever iulcrum, a. tension., member with, its ends, secured to the ends. ci the compression member either directly or through the brake. heads cr other thrust block elements.t It has long beenL aseneral practice to suspend the brake beam _from the brake frame by swing hangers, the lower ends of which are received in recesses provided therefor in the brake head and the-upper ends. of which. are seated in brack the beam by swing hangers in the usual manner if the intended support vfrom the side frame is not available. Other detail objects as will appear below are attained by the structure, selected forms of which are illustrated in the accompanying drawings in Which- 20 line 2_2 of Figure 1. Figure 3 is `an end view of the beam._ Figure 4 is a front View of one end of the beam. Figure 5 is, a detail longitudinal section through the end of the beam and the adjacent portion 25 of- the supporting bracket and is taken` approxi mately Oil. the line 5_5 of Figure 1. Eigure 6 illustrates, the detail of a wear plate preferably applied to the end member but omitted from. the other views to avoid confusion. Figure ‘7’ is end View corresponding to lFig-V bracket may engage a. portion of the beam com pression member spaced inwardly from the brake 23, 1,9%0,v to the present applicant,v and in D» M ` 15 during application and releasefof the brake, The head., as shown in Patent 2.197.785, issued. April `1 the _type referred to showing adjacent portions or the truck side` frames and beam supporting brackets and of- the wheels to which the brake is applied. VFigure. 2 is a vertical transverse portion through the b_eam and showing the adjacent portion of the side frame and is taken approximately on the ets on the truck frame, Another manner of supporting the- brake beam is to provide the side frame, with a bracket ad jacent to. the end of the beam and underlying a part of the beam to slidingly support the beam - Figure 1 is a plan View of a brake beam of 30 ure 3 but illustrating another ¿form of the in Liebt Patent _2,201,4421z issued May 21, 1.940; or may engage an integral extension of the brake volitionV beam compression member, as shown in a co a brake beam and illustrates another 'form of Figure, t is. a horizontal .section ci one end of pending application bythe present applicant iiled July 8, 1942, Serial> N'o. 450,154; or by an exten the invention. 35 sion on the tension member or its nut or» by an extension on the brake head, asA shown in Pat ents 2,226,551, issued December 31, 1940, and 2,254,514, issued September 2, 1941, both- to the present applicant. Each of* these arrangements 40 involves a special construction of the compression member of the brake beam. Fiebre. 9 is a vertical ,section taken on line S-es or Figure 8. Figure 1D. is. a rear view of.v the .structure shown in Figures 8 and `9 1n the. arrangement Figures `1-ii the ' beam compression member I, is of channel Secf tion.. 'rhe'tensicn rod i, comprises a round bar. Strut 3Y a casting or forging having apertures 4 4forseatmg the braise lever `idlerrrm pin (not shownl- Assembled with the conversing" beam The main object of the _present invention is to afford a simple, effective support from the truck _frame ior the end of a built-up truss` type brake tension and compression members are end mem-V bers. 5` each- having a pocket-forming portion 6 open. at one side to receive the end oi the oom beam having the usual compression member and tension member and, in some forms of the in vention, the brake bead. This object may be pression. member which is seated against the attained by providing separate thrust block for the end of the brake beam. adapted to seat the compression member and the brake head and the tensioningr device on` the tension member and to engage the supporting bracket. Additional inner face 1 of the pocket.. 'Ijhe outer face 8 of 50 the pocket structure `seats a tensioning nut il objects of the invention are to correlate the end of the beamI supported as indicated; above, with threaded on the end portion of the tension mem ber, The end member includes a sleeve 6a (Fig ure 2) which surrounds the adjacent portion of 55 the tension member, thereby preventing flexing 0f the tension member about its threaded portion 2,408,015 3 4 _ has a pair of vertically spaced flanges 36 extend ing from its closed side lengthwise of the beam member and the beam, as disclosed in E. G. Busse beyond nut 34 on the tension member and spaced Patent 2,319,440, issued May 18, 1943. above and below the same and inclined to the A flange structure projects from the end mem ber pocket structure and includes a portion I I CII general plane of the beam to receive between them supporting bracket structure (not shown) for mounting the brake head I0 which has verti `on the adjacent portion` of _the truck _frame simi cally spaced> jawsjreceiving"the-flange portion larly to the arrangement shown in Figures 1_6. II between them. Vertically disposed rivets R The brake head 31 is carried by end member secure the brake head to the end member inde 32 but is mounted directly upon the box-like body pendently of the beam tension and compression portion of the end member, the brake head jaws members. 38 being spaced apart vertically a greater dis The ñange has an end portion I3"projecting tance than- the jaws I2 in the head previously' longitudinally of the beam beyond the vends of described ‘and .extending over the top and bottom the tension and compression members and be and prolonging the useful life of the tension yond the side of the brake head and adapted to ’ walls’of the endmember pocket structure which receives the end portions of the beam tension . be received between brackets I 4 projecting in and compression members. The head is secured to the' end member by horizontally disposed rivets wardly from the adjacent truck side frame I5 l and to slide on the brackets transversely of the ' 39 and the details of this head and end member beam whereby the beam. is supported and guided in its movement towards-and ‘from’ the truck 20 .assemblyzare further< illustrated, described and claimed in a copending application by theA .pres wheels. Various arrangements of the side frame ent inventor, SerialY No.- 521,011, ñled February support elements are illustrated and described in an application liled by the present inventor, Se `It will `be understood that the details of the rial No. 503,865, issuedas Patent No. 2,383,955 on f Sept. 4, 1945. Il' preferred, the beam supporting 25 `_structures may be varied in other` ways than those shown without departing from thespirit element on the side frame may be integral with of the invention _and that some of the _features thersîde frame. _ ' described may be yusedwithout necessarily _in kPreferably ñange portions II- andV I3 of the end device are disposed angularly to each other fr cluding all of the features described.v iIt is con so that'the head mounting portion II is posi 30 templated, for example, that wear plates similar to those shown in Figure 6` may be provided in tioned in the same'general horizontal plane as each form of the invention and that each of the the beam members I, 2'and 3, whereby-the beam brake heads may receive thehanger in a top is adapted to receive the braking force »applied 4,1944. _ . ,_ __ , horizontally by the usual brake pull rods, -bottom recess, as indicated at I-I and I-I’, or may receive connections,l etc.,- while the support-engaging the hanger in _a central recess in the well known manner when the beam is applied to aftruclr ñange'portion I3,.is inclined at an angle` of ap frame having the usual brakehanger _bracket but not providedwith. support and guide brackets opposite to the Gnd of _the beam, _Exclusivel‘use proximately 12° so that thebeam moves along-a radius of the wheel W as the brakeshoes »S are applied to the‘wheels, thus avoiding a twisting f moment in the beam tension and compression 40 of those modifications coming within- the scope of the claims is _coriiaemplatedl ’ ' _and head members when the beam -as awhole What is claimedis: __ __ ' __ _ _, is inclined from the horizontal. YThis gives the beam greater strength for a given size and weight of material. _ 1. In a railway trusstype brake beam having a compression member and- a tension member . Preferably the support engaging portion I3 ofV the -thrust block is .provided with a renewable wear plate. I 'I to extend the useful life of the converging at the end ofthe beam with the yten sion memberextending diagonally through the end portion and beyond the end of the compres. sion member, an end device having a pocket be- facilitated'by extending it under the brake. ‘ receiving the end portions of said members, a head jaws I2 (see Figure 6). tensioning device on the tension member holding » In an emergency, or- if the beam is applied to the same and the devicewandlthe compression a truck frame without the brackets opposite the member in assembledv relation'with each other ends of the beam, the beam may be suspended by and having a structure projectingbeyond said beam, and-the application of this wear plate may a conventional hanger H. _ » Figure 7 illustrates another form of _the inven tion in which the support-engaging portion I8 of the thrust block flange is disposed in the same _ general plane as the brake head mounting flange pocket to form a »seat for a brake head -and ex tending longitudinally and. transversely of _,_the beam beyond said seat and' arranged to Vslidably engage a support on an adjacent truck part. _. 2. A brake beam as described in claimA 1 -in and the beam compression member, tension mem which the support-engaging structure is inclined ber and strut, which arrangement may be prefer GO from the general plane-of the compression and able if the Vline yof .thrust of the brake force on tension members s0 as to-move the beam transF thebrake beam is inclined or if the twisting mo ment resulting from _the application of the brake force horizontally and the movement of the brake . versely `of its general plane as_the support-en gaging structure slides over-a support inclined to the general plane ofthe beam.- .- .. . beam along an incline is not objectionable.__ 3. .Abrake .beamas describedin claiml in Figures -8,--10 illustrate another form of the in which the support-engaging structure comprises vention in which the channel compression mem vertically spaced flanges. arranged to receivea ber 30 and the round rod tension member 3I support flange» between them. , A . ' correspond to those shown in Figures 1-6. The 4. In a railway truss type. brake beam having beam end member 32, similar to the end member 70 a compressionv memberßand a tension member previously described, has an inner seat for the converging at theirr ends, an Aenddevice having end of the compression member and an outer a pocket structure mounted on the adjacent ends seat, for the tension member nut 34, and a sleeve of said members and. having a flange extending 35 for holding the tension member against ilex- . ing about its threaded end. longitudinally of the beambeyond .the ends -of The end member 75 the compression and tension >members to slidably 2,408,015 engage a supporting bracket, and also extending forwardly from the pocket structure, a tensioning element seated against the end device and hold ing the latter and said members assembled, and a brake head spaced inwardly of the beam from the support-engaging portion of the flange and having a rearwardly opening jaw receiving said flange to mount the head., 5. A brake beam as described in claim e in which the portion of the flange projecting beyond the end of the beam tension and compression members ‘is there twisted from the general plane of the beam to slidably engage a similarly in . clined support. ' 6 brake head, and a brake head mounted on said latter-mentioned seat in line with said tensioning device transversely of the beam, said end device having a flange projecting lengthwise of the beam beyond the ends of said members and beyond the side of said head and elongated transversely of the beam beyond the seat for the head to pro vide extended downwardly and upwardly facing surfaces arrangedY to slidably engage vertically spaced upwardly and downwardly `facing surfaces on the adjacent part of a truck frame to support and guide the beam in its movement towards and away from the truck wheels. ' l0. A‘brake »beam as described in claim 7 in 6. In a railway truss type brake beam, a com which the compression member and tension mem pression member, a tension member provided with ber are positioned in a common plane and the a tensioning element, said members being posi projecting ñange on the end device is inclined tioned in the same general plane, an end device at an angle to said plane whereby the beam as having a pocket-forming portion receiving the a whole may be disposed horizontally but may ends of said members and having seats extending 20 be raised and lowered as it slides along the sup transversely of said plane and facing in opposite port on the truck frame. directions and arranged to engage said tensioning l1. A railway brake beam end member com element and the end of said compression mem prising a pocket structure open at one end for ber respectively and having a flange forwardly of receiving the converging end portions of the com the end portions of said members and positioned 25 pression and tension members of a truss type in said plane, and a brake head having an open brake beam, its other end being apertured for ended jaw receiving said `ila-nge and secured the passage therethrough of the tension member of the beam, and -forming a seat for a tensioning 7. In a railway truss type brake beam, a com , device on the tension member, there being a part pression member, a tension member provided with 30 projecting from the pocket structure forming a a tensioning device, an end device having oppo seat for a brake head and forming a relatively sitely facing seats for the end of the compression wider ñange projecting longitudinally and trans member and for the tensioning device and also versely of said pocket structure beyond said head forming a seat for a brake head, and a brake seat and arranged to support the beam upon an head mounted on said latter-mentioned seat, said 35 adjacent truck part. end device having a flange projecting lengthwise 12. A railway brake beam end member as de~ of the beam beyond the ends of said members and scribed in claim 11 in which the support engag beyond the side of said head and extending trans ing portion of the ñange is disposed at an angle versely of the beam beyond the head mounting to the head mounting portion of the flange so as seat and arranged to slidably engage an element 40 to move the beam transversely of its general plane on the adjacent part of a truck frame to sup as the brakes are applied and released.` port the beam. 13. A railway brake beam end member com 8. In a railway truss type brake beam, a com prising a pocket structure open at one end for pression member, a tension member provided with receiving the converging end portions of the a tensioning device, an end device having seats compression and tension members of a truss type for the end of the Icompression member and for brake beam, a wall at the opposite end of the the tensioning device, and a brake head mounted pocket structure, one side of which wall forms a on said end device andl in line with said tension seat for the end of the compression member and thereto. » ' ing device, transversely of the beam, said end device having a ñange projecting lengthwise of the beam beyond the ends of said members and beyond the side of said head and extending trans the other side of which wall forms a seat for a tension device on the tension member, and flange structure projecting beyond said outer seat and forming a brake head mounting, insertable trans~ ' versely of the beam beyond the ends of said mem versely of a brake head between its jaws, and a bers and arranged to slidably engage an element relatively wider terminal for engaging a support on the adjacent part of a truck frame to support 55 on an adjacent truck part. and guide the beam as the brakes are applied 14. A railway brake beam end member as de-> and released. scribed in claim 13 which includes a flange eX 9. In a railway truss type brake beam, a com tending from the front of the pocket structure pression member, a tension member provided with in a plane extending lengthwise of the pocket a tensioning device, an end device having a seat 60 structure and arranged to mount a brake head. for the end of the compression member and a seat for the tensioning device and a seat for a EDWIN G. BUSSE.