US1565346A - Brake beam and method of making same - Google Patents

Description

Dec. v15, 1925. Y 1,565,346

L. L. WHITNEY BRAKE BEAMl AND METHOD OF MAKING SAME "ym ummm Dec. 15,1925. 1,565,346

l.. l.. WHITNEY BRAKE BEAM AND METHOD 0F MAKING SAME Filed Jan, 10. 1923 s sheets-sheet 2 Dec. 15,1925. y 1,565,346

L. L. 'WHITNEY BRAKE BEAM AND METHOD OF MAKING SAME F'ledJan. l0. 1923 3 Sheets-Sheet 5 Patentes Das. is, icas.,

F HAMMOND, INDIANA, AISSIGNOR TO AMERICAN STEEL LOBEN L. WHITNEY,

roommates,v or omesso, ILLINoIs,

PATENT OFFICE. y

A CORIORATION OFNEW JERSEY.

g YBrauns Bram: AND Martien or MAKING SAME..

Application led January 10, 1923. Serial 11o. 611,726.

To all whom t may comma* Be it known that I, LOREN .L. -WH1TNEY, a citizen ofl the United States residing at Hammond, in the county of Lak of Indiana,

have invented certain Anew and useful Improvements in Brake Beams and.l

Methods of Makin Sama-of which the following is a speci cation. This invention relates to a method of makin same. v v f One object of, lie invention is to provide a simple and-efficient method of making'a l truss-type of brake beam. f

' Another object is to provide' a truss type by means of the arrangement and method.

I, disclosed on the accompanying sheets of drawings, in which- Figures 1', 2 and 3 are, respectively, a rear` Aand compression members are upset, collar elevation, topplan view, and end elevation of a channel shaped blank for the-compres` sion member of the brakev beam;

Figures 4; 5 and 6, respectively, are simi-` lar views showing camber bent ltherein;

Figures 7 and 8 are top and side tions ofthe strut forming a part of the vsaid blank with the truss type of brake beam;

Figures. 9 and 10, are, respectively, a rear elevation and top planview showing the strut applied to the compression member;

. Figure 11 is an end view of the end of the compression x'nen'iberbefore further treatment;

elevation and top plan view of the strut and compression member showing the outer ends 'mem r Figures 15 andk 16 are, respectively, a top' plan view and -an end view member blank; 1

- Fi re 17 is a top plan View of the tension ofthe tension mediate its ends;

Figures 18 andy 19 are, respectively, rear elevation and top e` and State brake beam completely embraced .by the. compression eleva.

Figures12 and 13 are, respectively, a-rear' after itis given its V shape inter@ intermediate portion of the tension member applied to the strut and the\end portions seated within the expanded endportion's of thel channel shaped compression member; f

l'Figure 2O isan end view of the end portions of the'tensionand compression members showing the former seated in the latter; Figures 21 and l22 are rear elevation and top plan views. respectively, of the same brake'beam-parts after the expanded flanged portions of the compression member are wrapped around or embrace the ends of the tension member.; v Figure 23 is an `end view 'of the end portions of the tensionA and .compression members showing the end of the tension member member; v- Figures 24, 25 and 26 amon other things, show ends of the tensionl an compression 'membersafter the irst forging operation.y

in which the end portions of said tension portions being formed on both the tension andeompression members;

Figures 27', 28 and 29 are similar views after the second forging operation showing the ends of the tension and compression.

on more' perfectly formed and Figures 30, 31 .and 32 are similar views, i

respectively, after the third for ing operal tion 1n which the trunnions for rake heads' tension member Within the collars of the bers together.

tion will be apparent vfrom thefollcwing de'- it will be noted` that the com-pression member 1anl views of Athe three", l main parts of the rake beam showing the i l "i as f members `further upset and the'collars there# so' are completely formed and the -collars on the The various novel -features of th'e invenl vscription-and drawings' and willbe particu larly pointed out in the appended claims.-

, Referring tofthe vfigures of the drawingsfl is lormedfrom the blank 4() channel shaped section, having a web '41 andflanges 42. iThe blank is first provided vwith a c'amber as shown. at 43.

A strut, 44 having' abanded portion 45 is l then applied over Y -so that the latter is embraced bythe banded the compression member portion 45. Then the ends of the compression member are treated ina manner to form rounded` seat portions 46 for the tension member and also to expand laterally the ends of the compression member `anges 42 to, form enlarged embracing por-tions 47, which, 'will be pointed out later, embrace the enr-7" othe tension member.

'tension member blank 48 is then pro! vided 'ond given. V shape intermediate its ends, as shovvn'iin Fiffures 15, 16 and 17, the .tension member in thls instance being circular in section. 'lThe intermediate portion of the tension member 48 is then applied to the strut and the ends e9 of the tension member seated within `the rounded seat portions 46 of the compression member, whereupon the expanded' portions 47 of the compression member are Wrapped around to completely embrace the' ends of the tension member,as

' shownin Figures 21, 22 and 23.

' meet the various requirements for successful' commercial use, the method being simple,

The ends of the tension and compression members are then heated and given 1their first forging operation, in which thel ends of the tension and compression members are both upset, as shown in Figures 24, 25 and 26, shoulders and 51 being started, as shown in said ligures. The ends of the tension and compression members are then given the second forging treatment in which they are urthenupset as shown in Figures 27, 28 and 29. 'lln this connection it will be noted that the shoulders 50 and 51 on tension and compression members, respectively, are substantially completely formed, the shoulder 50 being withinthe shoulder 51.

Then the tension and compression members are given their third forging operation in which the ends of the tension and com# pression members are 4further upset and additional collars 52 and 5,3 formed on tension and compression members, respectively, the collar 52 lbeing located Within the collar 53. The cooperating collars 50, 51, 5 and 53 rigidly hold the tension and com pression members together. In this Way, also, the ends of the bra'ke beam are pro vided with trunnions for brake heads, said trunnions having an intermediate groove 54.- 'for the reception of a locking block to prevent accidental lateral movement of an associated brake head.

By means of this method, a. truss type of brake beam is provided which is adapted to ellicientand practicable.

` It is my intention. to cover all modiications of the invention falling Within the spirit and scope of the following claims.

I claim:

1. The method of making a truss type of ,ends'around the tension member, ao moselle.

' brake head trunnions.

2. rlhe method o nir-tiring e type oi brake beam consisting lirst in rovidin channel shaped compression in then connecting the strut there o, t pending the. ends of blank, then applying the tension member o said strut and placing the ends sion member between the expanded then bending said expanded eren the ends of said tension member, and then upsetting and forming shoulders the embrec ing portions oi said tension and compression members to firmly connect same and term "5' brake head trunnions.

3. rlhe method of securing together the ends or the tension and compressie?. om ffof a truss type of brake beam consistir. expanding the end portions nl sion member, then folding seid e forging shoulders on the ends or said sion and compression members to .irmlj/ con-- neet same and form brak-e head trnnnions.

Il. The method securing together ends of the tension and compression me bers of a truss type or breite beam' consist g in folding one of seid members around the other` and then forging shoulders on the er 'of said tension and compression members te firmly connect same and form braise trunnions.

5. A brake beamincluding tension compression members connected outer ends, shoulders being formed on i. tension and compression members con ing to rmly holdy together said 6. A brake boem including t compression members connected -outer ends, said .tension member he shoulder portions, and said compressi member also having shoulder portions I bracing the shoulder portions on said 't lodi

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