US2383955A - Railway truck brake beam support - Google Patents

Description

p 5- E. G. BussE 2,383,955

RAILWAY TRUCK BRAKE BEAM SUPPORT Filed Sept. 27, 1943 2 Sheets-Sheet l 5 F' 3. I H INVENTOR. EDWIN 6 BUSSE v A BY QM A T ORNEY Sept. 4, 1945. E. G. BUSSE RAILWAY TRUCK BRAKE BEAM SUPPORT Filed Sept. 27, 1943 2 SheetsSheet 2 0% M .mw Y 5 4 M @m 4 5 V 0 .5 7 6 7W 6 a 5 5 j m A J. l l/ D V. i ww fi F E w a J Z Y a 5 3 34 W2 .4 a I J Patented Sept. 4, 1945 UNITED STATES PATENT OFFICE nmwar TRUCK BRAKE nnau surroa Edwin G. Busse. Chicago,

Railway Equipment Co corporation of Illinois Application September 27, 1943, Serial No. 508.885

17 Claims. (Cl. 18m?) The invention relates to railway trucks. and more particularly to the support of the brake beam from the truck side frame.

It is a well known practice to carry the brake beam by swinging links pivotally suspended from brackets on the upper \portion of the side frame and received in recesses in the brake head. Another arrangement of supporting the brake beam is to provide brackets on the side frame adjacent the end of the beam and to slidably support the end portions of the beam on such brackets. The present invention relates particularly to the latter type of support.

in place of a sliding support, or vice versa, in 25 case it is necessary to replace the beam and the same type of beam is not available.

Another object is to safeguard the bracket,

' beam and side frame from accidental disassembly from each other.

These and other detail objects are attained by the structure illustrated in the accompanying drawings. in which- Figure 1 is a horizontal section through the lower portions of the side frames of a railway truck adjacent to one of the brake beams, the brake beam and the adjacent portions of one pair of wheels being shown in elevation.

Figure 2 is a side elevation of the structure shown in Figure l.

Figure 3 is a vertical transverse section taken onthelineHofFigure 1.

Figure 4 is a detail vertical section and view taken on the line H of Figure 3.

Figure 5 is a section corresponding to Figure '3 but showing the bracket in a reversed position for thepurpose described below.

Figures 6 and 7 correspond generally to Figure 3 but illustrate. different forms of the invention.

Figure 8 is a horizontal section taken on the line H of Figure 'l'.

The truck side frame indicated in Figures 1-5 is of a familiar cast steel type having a com- Ill.. alllgnor to Chicago mranr. Chi o. 111.. 1

.preferably of hollow box section with spaced struts or bolster posts ,3. The frame will be carried upon the usual journal boxes (not shown). The brake beam indicated generally at B is of built-up type with adjustable tension and camber and comprises a channel-shape compression member I. a tension member I, a strut, thrust blocks 1 seating the ends of the compression member. and the tensioning nuts 8 threaded on the ends of the tension member. Brake heads 9 are mounted on the thrust blocks and carry the brake shoes 8 which are applied to the wheels W This beam is disclosed and claimed in detail in another application flied January 31, 1944. Serial No. 520.459, but it will be understood that features of the present invention may be used in a truck equipped with a diiferent form of brake beam.

20 The tension member of the side frame inpression member I and a tension member 2 eludes an upright web li, a portion of which is extended upwardly and downwardly from the box section as indicated at I! and I3, and these extensions terminate in vertically spaced ledges it and II respectively extending longitudinally of the truck and projecting inwardly of the truck from webs l2 and I3.

The brakebeam supporting bracket it has an upright web ll arranged to fit against web' II, I 2, l3 and between ledges It and. Preferably, an upturned lip II on ledge It provides the latter with a groove receiving the lower edge of web I1, and one or more downturned lips I! on ledge it provides the same with groove-like sections for receiving the upper edge of the bracket. Recesses 20 in the bracket may be aligned with lips I! when the bracket is applied and removed, but when these elements are disaligned the bracket will be securely held against movement away from the side frame. Readily detachable bolts 2i hold the bracket in lip-engag ng p sition. If desired, lips l8 and II, and even ledge It, may be eliminated and bolts 2| relied upon to hold the bracket assembled with the side frame but, preferably, the support will be afforded by an integral element on the side frame such as the ledge ll.

Vertically spaced bracket flanges 22 and 23 extend inwardly of the truck from web ll and projecting,

Preferably, flange 22 and member 24 have and bracket web ll.

elements 2! and 26 opposing each other transversely of the truck and limiting movement of the beam away from the side frame, thus tendof flange 23 nearest the bolster spring window to limit the movement of the brake beam away from the wheels and prevent its contact with the side of the truck bolster (not shown).

This arrangement provides a substantial support directly between the end of the brake beam and the side frame and accommodating the ready application and removal of the beam to and from its support and avoiding expensive and otherwise undesirable additions to the side frame as would result from the casting therewith of integral brackets for supporting a and guiding the brake beam. The elements for attaching the bracket to the side frame practically render it impossible for the bracket to be loosened and detached and drop thebrake beam from the 'side frame, and this result is attained without placing shearing or tension strains in the holding bolts.

Preferably. flanges 22 and 23 are disposed asymmetricalLv between the top and bottom edges of the bracketand the lower edge of the bracket is notched (see 200) like the top edge. By removing bdlts 2 I the bracket may be removed and turnedupside down and positioned as shown in Figure hen the flanges will be at a lower level and clear the projecting 'nut 28 on the end of an A. A. R. standard truss type beam suspended from the brake frame by the usual hanger .29. Hence the bracket is adapted for the ready interchange of different types of brake beams and without loss of the bracket in case the end supported beam is temporarily replaced by one sus pended by the usual hanger.

Preferably, a rubber-like element 21,. or other spring-like element. is applied to frame web I! This element is distorted when the nuts on bolts 2! are tightened and prevents undesirable movement and wear of the parts.

Figure 6 illustrates another form of the invention in which the side frame tension member 30 has its inner upright wall 8| offset away from the center of the truck to form a ledge. 32 for supporting the bracket 33, the upright leg 34 of which abuts an upward extension 35 of the side frame web'Il and the upper end of the bracket leg forms a hook I receivingthe upper edge of extension II. The bracket is held to the side frame by one or more bolts TI and these bolts are relieved of all thrusts lengthwise or vertically of the side frame by one or more lugs ll received in corresponding apertures in the side frame web 35. The bracket flanges 38 and 40 guide and support the brake beam B which has an end member ll corresponding generallyto member 24 in the structure previously described, but the lug 42 on end member ll extends downwardly and the opposing lug 43 extends upwardly be reversed to agree with that shown in Figure 3.

assasss The cushioning element ll corresponds to element 2'! previously described. This arrangement does not contemplate the reversal of bracket 88 and the side frame upright inner web is modifled accordingly.

Figures 7 and 8 illustrate another arrangement similar to that shown in Figures 1-5 in that the side frame web 50 is provided with ledges Ii and 52 to receive and supportthe brake beam engaging bracket 53, but neither the bracket nor the side frame web has a groove or a hook receiving the other member. Instead, the web and the from flange II. This disposition of the lugs may bracket have cooperating lugs 54 and 55 respectively opposing each other longitudinally of the side frame and the two parts are locked together by pins 58 each retained by a cotter 51. A single long bolt may be substituted for each aligned pair of short pins 56. The bracket shown in these figures can be readily demounted by removing pins 51, particularly as the ends of the bracket do not extend beyond the pin lugs attached to the side frame. Cushion element 58 correspondsto elements 21 and 44 previously described.

This arrangement eliminates the interlocking elements on the bracket and beam and the latter may be slid .into and out of assembled relation with the bracket without aligning lugs and recesses as in the previous forms. In this arrangement the upper and lower portions of the bracket are symmetrical and the bracket may be reversed top for bottom in the event of wear of the beam supporting flange and thereby prolong the useful life of the bracket.

Each of the arrangements described above embodies one or more novel features by which are attained the objects set forth in the preliminary portion of the specification. Some of the details may be varied in accordance with the disclosures of other figures and some of the features may be omitted without affecting the functioning of other features. For example, the interlocking of the side frame and bracket in each instance may correspond to that shown in either of Figures 3, 6 or 7 and the interlocking of the bracket and beam may be as shown in Figures 3 or 6 or may be omittedas in Figure 7. These structures may be varied in detail otherwise than as shown without departing from the spirit of the invention, and the exclusive use of those modifications coming within the scope of the claims is contemplated.

What is claimed is:

1. In a railway truck, a truss type side frame, the inner side of the lower portion of the tension member of the frame having extensions pro- Jecting downwardly and upwardly from the member proper and being provided with an upwardly facing element, and a bracket seated on said element and detachably secured to the extension above said element and including vertically spaced parts projecting away from the side frame to support and guide the end of a brake beam abreast of the side frame.

- 2. In a railway truck, a truss type side frame having a lower member with extensions proi ecting downwardly and upwardly from the member proper and including an upwardly facing supporting element offset inwardly of the truck from the downwardly projecting extension, a bracket carried on said element and having vertically spaced flanges projecting away from the frame to engage downwardly and upwardly facing elements on a brake beam to support and guide the same in its movement during application and release of the brake, and means spaced from the supporting element and cooperating with the upwardly projecting extension to hold the bracket against movement laterally of the frame.

a box section member provided with an upright web at its inner side and 'of substantially greater vertical extent than the box section member facing inwardly of the truck and having vertically spaced projecting ledges extending longitudinally of the truck and facing each other, and a bracket comprising an upright leg adapted to abut the side frame web and to extend between said ledges and thereby be positioned on the side frame, there being detachable means passing through said web and bracket above and below the box section to hold the bracket against the web, the bracket having vertically spaced flanges extending away from said leg and adapted to receive between them the projecting end of a brake beam and to support and guide the same during application and release of the brakes.

4. In a railway truck, a truss type side frame including a chord of hollow section having a portion of a side wall extended vertically to form a web of greater depth than the section and-provided with a ledge extending longitudinally of the truck and projecting inwardly of the truck frame, and a bracket comprising an upright web in abutting relation with said side frame web and supported on said ledge and having a laterally extending arm for supporting the end of a brake beam, one of said webs having a vertically facing hook fitting over a vertically facing edge of the other web to hold the bracket against movement away from the side frame.

5. In a railway truck, a truss type side frame including a chord of hollow section having a portion of a side wall extended vertically to form a web of greater depth than the section and provided with vertically spaced ledges extending longitudinally of the truck and projecting inwardly of the truck frame, at least one of said ledges having a vertical lip parallel with and spaced from a. web, and a bracket comprising an upright leg inserted between said ledges and behind said lip in abutting relation with said web, there being a detachable element for holding the bracket against movement from behind said lip, said bracket including an arm extending laterally from said leg for supporting the end of abrake beam.

6. In a railway truck, a truss type side frame including a chord of hollow section having a portion of a side wall extended vertically to form a web of greater depth than the section and provided with vertically spaced ledges extending longitudinally of the truck and projecting inwardly of the truck frame, the lower of said ledges having an upwardly facing groove, and a bracket comprising an upright leg seated in said groove, there being a vertical lip on the upper ledge paralleling and spaced from the web, said leg being movable in said groove longitudinally of the truck into position behind said lip to be held in assembled relation with the web, and an arm on said bracket extending inwardly of the truck to support the end of a brake beam.

7. In a railway truck, a truss type side frame including a chord of hollow section having a portion of a side wall extended vertically to form a web of greater depth than the section and provided with vertically spaced ledges extending longitudinally of the truck and projecting inwardly of the truck frame, said ledges having vertical lips paralleling and spaced from the web, and a bracket comprising an upright leg inserted between said lips and the web and held thereby against movement away from the web, and detachable means securing the bracket leg against movement along the web, there being an arm on said bracket extending inwardly from said web to support the end of the brake beam.

8. In a railway truck, a side frame includingan upright web having vertically spaced-ledges extending longitudinally of the truck and projecting inwardly of the truck, one of said ledges having a series of lugs spaced from the web and spaced from each other longitudinally of the truck, and a bracket having an upright leg slidable lengthwise of the truck behind said lugs with spaced recesses corresponding to said lugs and adapted to be aligned therewith to permit the bracket to be applied to and removed from the side frame or to be disaligned therewith to hold the bracket against movement away from the web, there being an arm on said bracket projectin: laterally the web to support the end of a brake beam.

9. Structure as described in claim 1 in which the beam supporting part of the bracket is positioned asymmetrically of the top and bottom edges of the bracket so that its vertical relation to the side frame may be varied by turning the bracketupside down.

10. Structure as described in claim 2 in which at least one of the beam-engaging flanges is positioned asymmetrically of the top and bottom edges of the bracket so that its vertical relation to the side frame may be varied by turning the bracket upside down.

11. Structure as described in claim 1 in which the beam-engaging p rt on the bracket is positioned asymmetrically of the top and bottom edges of the bracket and is adapted,. when the bracket is in one position, to support the adjacent end of a brake'beam provided with a cooperating projection and is adapted, when the bracket is in the other position, to clear a brake beam having a link suspension from a brake hanger bracket.

12. In a railway truck, a side frame provided with a bracket extending inwardly of the truck and comprising vertically spaced flanges one of which terminates in a vertical lip extending towards the other flange, a brake beam having a member projecting from its end and extending into said bracket between said flanges and supported by the lower flange and having a vertical 7 lip opposing said bracket lip but normally spaced therefrom and limiting the movement of the brake beam away from the side frame.

13. In a railway truck, a side frame including an upright web having a ledge extending longitudinally of the truck and projecting inwardly of the truck, a bracket comprising an upright web in abutting relation with said side frame web and supported on said ledge and having a laterally extending arm, a brake beam with an extension at its end supported on saidarm, one of said webs having a down-tumed hook fitting over an upwardly facing edge of the other web to hold the bracket against movement away from the side frame. and said arm and brake beam extension having elements opposing each other transversely of the truck and limiting the movement of the brake beam away from the side frame.

14. A structure as described in claim 12 in which at least one of the lips on the bracket and beam member is notched and the opposing lip is restricted in length so as to pass through the notch when the beam and bracket are disaligned from their normal position and moved relative to each other transversely of the truck. whereby assembly and disassembly of the beam and aid frame are facilitated.

15. Structure as described in claim 1 in which the bracket is reversible top for bottom to interchange the position of the vertically spaced parts.

16. A railway truck truss type side frame structure having a chord of hollow section with a portion of a side wall extending vertically to form a web of greater depth than the section and provided with vertically spaced ledges opposing each other and extending longitudinally of the frame to form a recess for receiving a brake beam supporting bracket having an upright portion seated against said web, at least one of said ledges hav. ing a vertical lip spaced from the inner race of the recess to overlap an upright portion of the assaoss frame, and cooperating extensions on the bracket passed, between and behind them to cooperate with the groove to hold the bracket against movement away from the web.

EDWIN G. BUSSE.

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