US2655234A

US2655234A - Brake beam with fixed head and guide

Info

Publication number: US2655234A
Application number: US617966A
Authority: US
Inventors: Walter H Baselt
Original assignee: American Steel Foundries
Current assignee: American Steel Foundries
Priority date: 1945-09-22
Filing date: 1945-09-22
Publication date: 1953-10-13
Anticipated expiration: 1970-10-13

Description

Oct. 13, 1953 w. H. BASELT BRAKE BEAM WITH FIXED HEAD AND GUIDE Filed sept. 22, 1945 3 Sheets-Sheet l INVENTIOR. Lite/1714 Oct 13, 1953 i w. H. BAsELT l BRAKE BEAM WITH FIXED HEAD AND GUIDE 5 Sheets-Sheetl 2:'

Filed Sept. 22, 1945 n JNVENTOR.

Oct. 13, 1953 W H, BASELT 2,655,234

` BRAKEv BEAM WITH EIXEDHEAD AND GUIDE Filed Sept. 22,- 1945 3 Sheets-Sheet 5 yHWENTOR.

Patented Oct. 13, 1953 .BRAKE EAMvmH man HEADAND .GUIDE lWalteffH' Baselt, Chicago, 1111., lassigner"izo/Amer- ,-Chicago,;ll1., sa. corporaficanvSteelsFoundries tionrofzfNewJersey I .Applicazionisepierber zz, 1s45,-seriarNo.:s1z-,9ss

zziclaims. l (c1. rias-@22311) WAThis, invention 'relatesto'brake beamsand more particularly'toa novel fabricated truss type-brake beam adapted for utilization' in-the-brakeri ggi-ng of arailway car-truck.

A general object of the invention is"to-pro'vide a lnovel "fabricated ybeam "of -the *above-:described type wherein all of 'theparts are `,welded '1together 'to iform Aa relatively] light `structure capableofresisting the' loadsto which suchabeam issubjected underl railwayservice conditions.

-'A vmore-"specific object ',of the invention is `to design a brake ,beam structuresuch'as'aboveiiderscribed'wherein-'each'brake-head is Aprovided with a Abox-sectioni-portion*housing the adjacent ends of fthe -tension and :compression members of the truss structure, said structure being welded to thebrake head.

Another object :ofthe-invention is to designa beam'such as above 'described wherein-the boxsectionportion ofthe. brake hea-d is' provided with guide'meansfor' the tension memberoi' theI beam, thereby anording an exceptionally-rigid strucure.

'In -one embodiment ofn thev inventiontheV novel brake -beam is ofthe so-ca'lled .Unit type Whereinthe ends of' the-beamare provi'ded with relatively narrow guide portionsadaptediforreception Awithin brackets 'formed on theyY associated truck frame, .and in other illustratedembo'diments ofthe invention, the' novelgbeamiis of more standard 'design wherein r`the brake heads are provided with hanger sockets adaptedgfor ,connection to associated -hangers `'swingably ,supported 4by 4the truck. frame in conventional Vmanner.

-The-foregoing and other objectsn'd advantagesofthe invention .will become-.apparentffrom aconsideration of the'followrig specification and accompanying drawings wherein:

Figure V1 is a'fragmentary topplan View. of1,a brake beam embodying' the invention;

Figureis anend elevationof the, structure shown in'lFigure 1;

Figures 3 land 4 are sectional viewstakenrespectively in the vertical.. planes. indicated.v by the lines `3--j3 and 4-14 ofFigure 1`; A

"Figures 5,-8, illustrate. a modification. of f the, invention, Figure 5 being a fragmentaryitopgvplan view of the beam, Figure 6 being ancndview of the-.structure -showniinFiguregfFigurei'I .being f a fragmentary `:rear elevation @of :the st-ructure :shown in. Figure r5, and :Figure i8 A:being :a

. sectional `view taken in ftheaver-tical fplanef indicated by the line -pofiFiguref 5; Figures aand/.10 illustrateanotlfier modification "2 of'` thel invention, "Figure 9 beingv -a fragmentary top plan view of the-beamfand-Figurem being a side 'elevation ofi-the structure` shown infFigureS.

Describing l'theinvention in detail Vand referring rst to rthe preferred embodiment thereof illustrated in Figures 1-4 inclusive, the 'brake beam com-prises a'truss v'strl'icture including-2a channel or U-section compressionmember-Q, -a tension -member v4, f-anda fulcrum 6 connected therebetween, said ffulerum-beingfslotted as -atf8 to accommodate an --associated brake lever (not shown). -Each end-of the beam=is provided with afbrake head iin comprising affb-ox-"section--truss vlcckportion including top-and 'bottom Walls f I`2 and Il, afrontwall If6,'-\an'darear wall |8-slotted as at 20 lfor the purposeishereinafter described. The outer or outboard-'end'of'thefbox-section portion "of the brake head is offset to afford r`a relatively narrow I'guidegportion for boss 22 AVprojectingfoutboardly :from-an outboard Vbrake head Wall 23-and adaptedf'forreception within Vaj-guicle bracket ofan associatedtruckfframe' (not shown) The tcp'andlbottomwalls I-2-and` I4 are-connected atfthefouterfextremity thereofbyan enld wall #24 cored `away fas Vat i26 for convenient foundryfpractice. "It'maybe-noted that the end wall "24 is vprovid-ed adjacente-the rear 4extremity thereof `with =an inwardly vextendinglug .21 :between-the offset'portions Of-.thetop and bottom walls `I22 and and deningfa -socket therewith receiving'theoutboardend of the tension member 4. "The lug21 presents-a diagonalguide surface" 2'9V engaging` the diagonal tension member 4 at i the outer'extremity thereof. 'The' lug 21 'also functions to dam weldV metal within-'the beforementioned slot '-20 -during a welding :process in which the Vbrake'headand;associated truss structure are fused together to form an integral structure,as`hereinafter described.

'Iheinnersextremities-of the top and bottom walls t2 :and Hare connected-by aninner end Wall 28 with Varslot or'socket 30.receiving the tension rmember "I to "aiord convenient guide means 4vtherefor. `A -bifurcated Vfiller block, generally designated f32, iis 4fitted within thecompression member l12 in labutment lwith the -rear web thereof rand comprises rspaced legs v34, -34 (Figure 4) snuglyembracing-thetension memberf4. rvThe blockaffordsrigidity to thestructure and Lprovdes i back-up metal for `a weld within the-'slot 2-0, said weld'beingv-eifective;to fusethe

members

2, 54, I I8 and 2321 into an integral structure, kthe fusedn area being vdiagrammatically 'indicated'by-'af'dotted 1ine'-`35 in-'Figure 4.

It may be noted, as best seen in Figures 1 and 4, that the tension member 4 at its outboard end is received within a complementary slot 36 in the rear web of the compression member and is seated against the rear wall 18 of the box-section portion of the brake head, the outboard end of the tension member 4 being diagonally sheared with respect to its longitudinal center line to afford a relatively great weld area contacting the slotted portion of the rear brake head wall 18.

The front wall 16 of the brake .head is of conventional arcuate form and is reinforced by top and bottom

vertical webs

38, 36 merging respectively with the top and bottom; brake head walls I2 and 14 which are slightly voset at 46 and 42 respectively adjacent their forward extremities which merge with the before-mentioned front wall 16. The front wall 16 is formed on the forward face thereof with end and intermediate brake

shoe engaging lugs

44, 44 adapted for connection in conventional manner to associated brake shoe means (not shown).

Figures 5-8 inclusive illustrate a modification of the invention wherein the truss structure comprises a channel or U-section compression member 52, a tension member 54, and a strut 56 connected therebetween, said strut comprising a slot 58 for the reception of an associated brake lever (not shown).

Each end of the 4modified beam is provided with a brake head generally designated 66 comprising a box-section portion including top and

bottom walls

62 and 64 offset adjacent their forward ends at 66 and 68 respectively to merge with an arcuate portion 16 of the front brake head wall 12, said arcuate portion 16 defining a hanger slot 14 adapted for the reception of an associated brake hanger (not shown). The box-section portion of the brake head also comprises a rear wall 16 slotted as at 18 to accommodate a weld as hereinafter described.

The top and

bottom walls

62 and 64 are connected at the outer or outboard extremities thereof by an end wall 86 slotted as at 82 for the reception of the tension member 54, and the end wall 66 is provided on the outer surface thereof with a hollow projection or lug 84 receiving the outer end of the tension member 54 which is snugly tted within a socket or slot 86 within the lug or boss projecting at 84 from the outboard brake head end wall 86. The compression member 52 is snugly tted within the box-section portion of the brake head, the top and bottom webs of the compression member being in snug abutment with the top and

bottom walls

62 and 64, as best seen in Figure 8, and the rear web 88 of said compression member being in abutment with the rear web 16 of the brake head.

It may be noted, as best seen in Figures 5 and 8, that the rear web 88 of the compression member is provided with a slot 66 extending inwardly from the outer extremity of the compression member and registering with the beforementioned slot 18. A ller block, generally designated 92, is tted within the compression member 52 in abutment with the top and bottom and rear webs thereof, said block aording back-up metal for a weld within the

slots

18, 82 and 96. This Weld, as in the previously described embodiment, fuses the outboard end of the tension member with the rear web 88 and the wall 16 of the compression member and brake head respectively and with the filler block 92 which is bifurcated as in the previously described Qm- 4 bodiment so as to snugly embrace the tension member 54 at the outboard end thereof to provide an exceptionally rigid beam.

It may be noted that the offset portions 66 and 6B of the top and bottom

brake head walls

62 and 64 are integrally formed with an inner end wall 96 comprising a slot or socket 68 receiving the tension member 54 to afford guide means therefor, as in the previously described embodiment.

The front wall 12 of the brake head is provided on the forward face thereof with end and intermediate lugs 166, 166 adapted for connection in the conventional manner to associated brake shoe means (not shown).

Referring now to Figures 9 and 10, another modification of the invention is illustrated wherein the brake head generally designated 162 comprises a box-section portion including a rear wall 166, top and bottom walls 108 and 116, and inboard and

outboard end walls

112 and 114. The beam also comprises a truss structure including tension and

compression members

126 and 122 interconnected by a strut 124 with a diagonal lever slot `121i. i

The compression member |22 is a channel or U-section member snugly fitted within the boxsection portion of the brake head with the rear web of said member bearing against the wall 166 and the top and bottom webs of said member bearing against the top and bottom walls |68 and 116 respectively.

The tension member extends through a diagonal socket or slot 128 (Figure 9) in the inboard end wall 112 of the brake head 162 and through a complementary opening 136 in the outboard end Wall 114 which is provided with a hollow boss 132 on the outboard face thereof. The boss 132 comprises an internal socket or pocket 134 receiving the outboard end of the tension member 126, the outboard extremity of which is sheared as in the previously described embodiments of the invention.

It will be understood that the tension member 126 is welded to the brake head 162 within the socket 134 which is conveniently adapted to receive the weld metal.

i As best seen in Figure 10, the top and bottom walls 168 and 116 are offset toward each other at their forward edges to merge with an arcuate portion |36 0f the front or forward wall 138 of the brake head, said arcuate portion affording a hanger socket for the reception of conventional brake hanger means (not shown).

The front or forward wall |38 of the brake head is provided with lugs E46 adapted for connection in the conventional manner to associated brake shoe means (not shown); and said wall 138 is reinforced by top and bottom vertical ribs 142, |42 as in the previously described embodiments of the invention.

. It is to be understood that I do not wish to be limited by the exact embodiments of the device shown which are merely by way of illustration and not limitation as various and other forms of the device will, of course, be apparent to those skilled in the art without departing from the spirit of the invention or the scope of the claims.

Iclaim:

1. In a fabricated truss type brake beam, a brake head with a hollow portion including a rear wall, top and bottom walls connected thereto, and an outboard wall connected to said rear wall and to said top and bottom walls, an opening through said outboard wall, a hollow boss formed on the outboardzface .of `said Loutboard -Wall and .comprising an internal socket .communicating ndthfsaid opening, .a -U -section compression member :fitted .within said portion in abutment with .all of said walls, a `tension member extending into saidcompression member .and outboardly through `said opening into said socket, and a weld insaid socket connecting said tension member `to said boss.

2.. -In a fabricated truss type brake beam, :a braise 'head with a hollow portion including .an outboard .end wall with an opening -therethrough and a boss on the outboard face thereoifasocket within said Aboss communicating withfsaid .fopening, v.a Ll-section compression member received within said portion, a tension member received Within said `compression member vand extending through-said opening into said socket, andiaweld in said-socket connecting .theontboardzend of :said tension memberto said. boss.

3. In a fabricated .truss `.type railway brake beam, a brake head having .a iront brake :shoe

supporting portion, and 'a rear hollow `:portion comprising a rear Walland an zoutboardendwall with an opening therethrough, a boss on the outboard face or" said end wall havingaso-cket communicating `with said opening, Va .U -section compression member `received Within said hollow-portion and Yhaving a rear .wall .bearing against the rear wall of said hollow portion, a tension memberreceived Within the .compressionimemben a slot .in said compression member Wall receiving a portion-of vthe tension member, the outboardend of said tension member extending through said opening into said socket, fand a Weld connecting said rear .Walls to saidtension member, said weld extending into said socket to .connect `the out board end of the tensionmember to saidfboss.

.4.:In .a fabricated .truss Vtype railway brake beam, asbrake Aheadhavinga front brake shoe supporting portion, anda rear A,hollow .portion comprising arear wall-and Yan outboard 1endwall withzan opening therethrough, a boss on theoutboard face of said end wall having a socket communicating with said opening, aU-section compression member :in .telescopic .relationship with said hollow portion, .said compression :member having a rear wall bearingagainst the rear'wall of saidhollow portion,aztension memberreceived within said hollow portionand saidcompression memberA and extending through saidopening into saidfsocket, a weld in said socket connecting the outboardiend of .the 'tension fmember to 'said' boss, a bii'in'cated filler block seated onthev-tension member, said block having a surface seated againstoneof the rear walls and having spaced legs seated against the top and bottom of the tension .member and having a surface diagonal to said rear walls seated against the tension member and joining :the first-mentioned surface, said block being secured by said weld to the tension member and to said one rear wall.

5. Atruss type brake beam comprising a U-section compression member havingtop andbottom walls and an upstanding web .extendingtherebetween, .a brake head havinga front brake shoe supportingportion and having airear hollowportion including an upstanding web bearing against the nist-mentioned web along complementary surfaces, a tension member housed Within the compression member and said hollow portion and having a rear surface positioned adjacent one of said webs, a bifurcated ller block having a surface diagonal to said webs and bearing against said tension member from approximately the top to the bottom thereof, said block having spaced lees with opposed top and .bottom surfaces ,seated against the top and bottom respectively "of said tension member -andioiningtbefdiaeonal surface. said block -andflgegs having nat coplanar surfaces bearing againstsaidone web and joining said ydiagonal surface and said top and bottom y.Surfaces to aiord -a dam preventing ow 7of vmolten weld metal between lthe tension ymember and said one web, `and -a Weld ,joining the block, the tension member lrear surfaces, .and said one .web in an integralstrueture.

-6. in .a fabricated .truss type railway brake beam, va :brake head having .a Vfront brake shoe supporting portion, and a rear hollow portion .comprising v.a rearwa11.-.and an outboard end :wall .with an :opening therethrough, .fa boss on/the outboard face ofsaidrend--wall having a ,socket oommunicating with .said opening, a U .-.sectioncompression member having a rear -Wall bearing against therear-:wali.ofitbe'brake head portion, a tension member received within ythe compression-,member and extending .through said opening into .Saidsookeu a bifurcated-ller block embracing the tension member and seated against one of said rear walls along :the top andbottom margins 0i. the tensionpmember vand extending o utboardly Ytosaid opening, fsaidpblock comprising surfaces diagonal to -said -rear lwalls land seated against zthetension member.and a yweld connecting said tension :member to saidone rear wall, said Weld extending into said socket-to connect .the .tensionmember'to said boss, the block being ormedand arranged to afford -a darn preventing owiof molten weld-metal alongthetension member-.and saidtone. rear wall andibeingffusedstosaid one rear fwall .and lto the ztensionrmember .by said web Vto reinforce the connection therebetween.

"7. A truss 'brake beam, 'including Aa compressionmember,.aztensionnmemberibent in the middlefandhaving divergent .halvesaway from the bend, and each half extending substantially at the .same .slantasthe otheran'd continuously at QReSlantQrthe full length :thereof to its terminal, :and :the terminals .crossing the ends of `the 'oompressionrmember a-tf such'slant and. extending heyOnd the compression member, vand ftruss locks aroundithe crossings ofthe members and Ahaving beam fguding Yextensions .receiving :the thus continuously :slanted extended .ends of rthe 'tension member,

:8. A truss brake beam,zinc1uding separate compression and tension members, `trusslocies fixing ltheendsof the .members together and having longitudinal :extensions Aconstituting -means `for guiding the vbeamen side members of a car truck, the truss locks .having openings yadjoining the ends of the compression and ytension members, and the compression :member having .openings registered with the-aforesaid openings-.the ends of .the 'tension member extending -intothe truss lockextensions, and the openings in the truss locks being ;in .the .shape of ilongitudinal vslots extending `into the extensions of the locks, where their outer v'ends areoppositethe extendedvends of ttheztensionzmember, andthe openings in the compression =member .registered .with the inner ends .of theslotdfands through theslots and compression member openings uniting the truss locks, the extensions thereof and such members by Welding.

9. A truss brake beam, including a tension member and a compression member longitudinal surfaces of the two members in mutual contact at members thereat, and truss locks maintaining 7 the connections and 4provided with sockets having transverse outer end walls and receiving the ends of both members, the compression member abutting the outer end walls of the sockets, and the end walls having openings into which extend the ends of the tension member.

l0. A truss brake beam according to claim 9, wherein the truss locks are provided with relatively reduced longitudinal channels forward of the sockets and receiving forward edge portions of the ends of the tension member.

11. A truss brake beam, including tension and compression members, the ends of the tension member being substantially flat in the horizontal plane of the beam and the compression member of channel form, and the rearedges of the ends of the tension member contacting the web of the compression member along between the flanges thereof and spaced away from the flanges, means for attaching the ends of the two members, and truss locks having sockets receiving the attached ends of the two members, the outer ends of the sockets provided with horizontally slotted walls, and the thus spaced ends of the tension member extending into the slots.

12. A truss brake beam according to claim 1l, wherein the truss locks are provided in front of the sockets with channels forming forward reductions thereof and in which fit the front edges of the ends of the tension member.

13. A lock for the truss of a brake beam, comprising a block-like body having a socket with an outer end wall and extending from its inner end to the wall at its outer end and the socket located at the back portion of the body, a front wall, and an intermediate, reduced, neck-like portion between the upper and lower surfaces of the body and extending longitudinally of the body between the front wall and the socket, the outer end wall having a transverse slot opening Yinto the socket.

14. A truss brake beam including compression and tension members connected together at their ends, housings around the connected ends of the members, and in each housing a pair of mutually facing spaced walls between and by which the ends of the tension member are engaged, said walls terminating in rearwardly facing surfaces defining sockets with interior forwardly facing and interior upper and lower surfaces of the housings, said sockets receiving the ends of the compression member.

15. A truss brake beam including compression and tension members connected together at their ends, truss locks around the connected ends of the members, each truss lock having interior walls with substantially horizontal surfaces spaced apart sufficiently to engage across the end of the tension member positioned between them, said walls terminating in rearwardly facing surfaces defining sockets with forwardly facing interior surfaces and with upwardly and downwardly facing interior surfaces of said locks, and the compression member engaged in said sockets, the middle horizontal plane of the locks extending between said horizontal surfaces and said hori- Zontal surfaces projected rearwardly from the front walls of the truss locks.

16. A truss lock having a rear socket adapted to receive the end of a channel compression member or a truss brake beam, the lock having interior spaced apart walls projected rearwardly from the front wall of the lock, said walls having mutually facing surfaces extendingy rearwardly from said front wall at approximately the mid-height thereof, said lock having rearwardly facing surfaces terminating the spaced walls, said rearwardly facing surfaces in conjunction with interior forwardly facing and interior upper and lower surfaces of the lock defining the socket, and said mutually facing surfaces adapted to engage between them the end of a tension member of such a brake beam.

17. A truss lock, according to claim 16, wherein the back wall of the lock is provided with means adapted for assuring the rigid securement of the lock to such a compression member.

18. A truss lock, according to claim 16, wherein the back wall of the lock is provided with a longitudinal slot adapted for the rigid securement of the lock to such a compression member by welding.

19. A truss lock, according to claim 16, wherein the lock has a hollow longitudinal extension adapted to guide the end of such a beam and is provided with a slot which runs along the extension.

20. A truss lock, according to claim 16, wherein the spaced apart walls are connected with the upper and lower walls of the lock to afford reinforcement therefor.

21. A truss look in the form of a housing adapted for receiving an end of a truss of a brake beam, said lock comprising a socket, the wall of which is continuous to completely surround such end, and a slot in the back of the lock communicating with the socket, the slot adapted to receive a weld, and the lock provided with a hollow end extension adapted for guiding a brake beam, and the slot in the lock running along such extension.

22. A truss brake beam including tension and compression members, the tension member having divergent ends extending outwardly therefrom in substantial alignment, truss locks provided with sockets receiving the ends of the two members, the outer ends of the sockets having walls provided with openings and the terminals of the compression member abutting the walls, the tension member having engagement with the locks inwardly and outwardly of said walls.

WALTER H. BASELT.

References Cited in the rile of this patent UNITED STATES PATENTS Number Name Date 979,668 Haskell Dec. 27, 1910 2,182,210 Osner et al. Dec. 5, 1939 2,270,610 Spaeth et al. Jan. 20, 1942 2,319,484 Welp May 18, 1943 2,356,720 Aurien et al. Aug. 22, 1944 2,398,917 Busch Apr. 23, 1946