US2460248A - Hanger support - Google Patents

Description

Jan. 25, 1949. v w. H. BASELT 2,460,248

HANGER SUPPORT Filed Nov. 1, 1945 2 She'ets-Sheet 1 i l-Z INVENTOR.

Jan. 25, 1949.

W. H. BASELT HANGER SUPPORT 2 Sheets-Sheet 2 Fild Nov. 1, 1945 AQL mmvron.

Patented Jan. 25, 1949 UNITED" STATES AENT OFFICE American Steel Foundries,

poration of New Jersey Application November 1, 1945, Serial No. 626,021

, 15 Claims. I 7

My invention relates to brakehangers for railway car trucks and more particularly to sup porting means therefor;

An object of my-irivention is to provide novel means for supporting a brake hanger from an associated vehicle, such as a railway car truck, in a manner eliminating'wear on the hanger and the supporting portionscf the vehicle.

A further object of my invention is to provide novel support means for a hanger and an associated brake beam in which resilient means are utilized between thehanger and the vehicle frame to afiord a resilient cushion between the same and functioning to-restrain free swingingmovement of the hanger and the beam while permitting the necessary lateral movement of the beam and lateral angling of the hanger.

My invention comprehends an arrangement in which resilient means, such as rubber, may be compressed between sleeves respectively fixed to a brake hanger bracket on the vehicle frame and to a brake hanger and wherein stop means are provided for preventing further compression of the resilient means upon the before-mentioned movements of the'hanger to an extent permanently distorting the resilient means by the induced flow thereof or splitting the same with consequent failure of the same to return the hanger and its associated brake shoe to their original positions in alignment with the braking surface afforded by the periphery of an associated wheel.

My invention further contemplates an arrangement as above described wherein the resilient means is placed in shear during actuation of the hanger by the beam to facilitate return of the hanger and the beam to their normal positions. These and various other objects will be apparent from the following description and drawings and will be more particularly pointed out in the claims.

In the drawings:

Figure 1 is a fragmentary side elevation of a truck embodying my novel invention;

Figure 2 is an enlarged sectional view of a portion of the structure shown in Figure 1, the section being taken substantially inthe vertical plane indicatedby the line 2-2 of Figure 1 with only a portion of the hanger being shown;

Figure 3 is a. sectional view taken in the vertical plane indicated by-the line- 3-3 of FigureZ; and

Figure4 isaa view similar'to Figure 2,.showing a modification oi the. invention:

Describing my inventionin detail andrefer- Qhicago, ill, a cortaining the brake head and its shoe in operative relationship to the wheel.

The hanger 2 is pivotally connected at its upper end as at E8 to the brake hanger bracket 23 integrally formed with the truck frame member 22 by my novel hanger support means now tobe described.

Referring now to Figures Z-and 3, the hanger 2 extends with n a slot 2d allel lugs 26, 25 forming the bracket '29 and is formed with an eye end 28 havingtightly fitted therein, as by a press lit, a collar 38 receiving a bolt 32 extending therethrough and through aligned openings 3 1,39 in the lugs 26, 2S. Positioned within the openings 35, i l in said lugs 2 5, 2d and disposed on opposite sides ofthe hanger Z are it, 3 each of said bushings comprising an outer sleeve 38 press-fitted in the associated lug 2% and an inner sleeveb sleeved over the bolt said sleeves 38 and as being in spaced relationsh p and silient mater'al, such as rubber, be preferably formed as for a purpose hereinafter described; Each of the sleeves id, lt are formed with annular flanges i t and 35 at opposite ends thereof, said flanges and which may M, 3 having abutment as at 38, 8 with the adjacent sides of the hanger 2 Each of said flanges i5 is preferably formed by a spinning operation to confine the associated insert 42 and portion of sleeve 38 between the same and It may be noted that one of saidthe flange ie. flanges 35 has abutment as at 59' with the head 52'. of the bolt and the other of said flanges 48, it has a lock washer 55 urged into engage merit therewith as at 56 by a nut 58 on the threaded end fill of said belt, a cotter $2 extending through said bolt end 68 in said nut to prevent accidental disassembly of the nut and bolt. It will be apparent that the bolt and nut assembly operatively urges sleeves All, =33 into tight engagement with the hanger so that the hanger sieeves id and the bolt and nut assembly will rotate as a unit relative tohanger 2 comprises shoe ill in conventional manner defined by spaced 'parthe bushings generaly designated opening 34 in thehaving compressed therebetween a tubular filler or insert 42 of rea laminated structure into aligned slots the bracket 20 and the sleeves 38, 38 fixed thereto. It may be further noted that the rubber inserts 42, 42, under compression between the sleeves 38 and 40 of the respective bushings, serve, through the resistance afforded by their substantial area of contact therewith as at 04 and 60, to maintain the hanger in a central position between the lugs 26, 26 of the bracket 2 as well as by the engagement of each insert 42 at opposite sides thereof with the annular end flange 08 on the associated sleeve 38 and the flange 44 on the associated sleeve 40 and under compression therebetween whereby the hanger and its associated shoe will be maintained in alignment with the periphery of the associated wheel to insure the proper braking application of the shoe to the wheel.

In the arrangement described above, the hanger 2 is resiliently supported from the bracket 20 of the truck frame member 2 and, as there is no metal-to-metal contact between the relatively movable sleeves 38 and 40 of each bushing, frictional wear is prevented during movement of the hanger relative to the bracket 20 as well as wear occurring due to the severe vibrations to which the brake hanger is subjected in service. Also, as the rubber inserts 42, 42 are under considerable compression between the sleeves associated therewith, free swinging of the hanger and the beam about the pivot point I8, represented by the bolt 32, will be restrained by the resistance of the inserts in shear to such movement and, accordingly, the hanger will be maintained in a position spaced from the adjacent truck parts, resistance of the inserts to the adjacent lateral movement of the beam and lateral hanging of the hanger being insufficient to affect actuation thereof by the associated brake rigging to position the shoe in braking application to the wheel.

In the actuation of the brake hanger by the brake beam for the application of the brake shoe to the periphery of the wheel, the rubber inserts 42, 42 will be placed in shear and the resultant torque action on the hanger 2 to return the same and the brake beam to their original positions will be of material assistance in effecting the return of these brake parts as well as those associated therewith to their normal positions. This condition is illustrated in Figure 1, the torque angle resulting from travel of the beam and hanger being indicated as approximately six degrees when new friction shoes and a new wheel are utilized and as at approximately twenty-six degrees when the same are fully worn. In order to permit movement of the beam and hanger to the maximum torque angle, the rubber inserts are preferably laminated, as illustrated, to prevent excessive shearing action of the same resulting in injury thereto.

Referring to Figure 2, it may be noted that radial movement of the hanger outwardly of the bracket 2 will be limited by abutment of the perimeters of the flanges 44, 44 of the sleeves 40, 40 with the adjacent inner cylindrical surfaces 70 of the sleeves 38, 3B and also that angular movement of the hanger in the plane of the bolt is also limited by the aforesaid engagement of the surfaces with the perimeters of the flanges during movement of the beam and hanger so that additional compression of the inserts will be limited to an extent preventing the same from splitting or becoming permanently distored by the induced flow thereof during the aforesaid movements of the hanger with resultant failure of the inserts to function to return the hanger and its associated brake shoe to their original positions in alignment with the wheel. In the assembly of the device, each of the bushings 36, 36, previously assembled as a unit, are respectively fixed within the openings 34, 34 in the lugs 20, 26 of the bracket 20 by press-fitting the outer sleeves 38, 38 in the lugs. The hanger 2 may then have its upper end positioned within the slot 24 of the bracket 20 between the bushings 36, 36, whereupon the bolt may be passed through the inner sleeves 40, 40 and the collar 30 of the hanger 2, and the assembly completed by positioning the lock washer 54, nut 58 and cotter B2 on the threaded end of the bolt.

The modification illustrated in Figure 4 is substantially identical to the structure illustrated and described in Figures 1 to 3, differing therefrom by the formation of the outer end of each of the inner sleeves I02, I02 of the bushings as a continuation of the cylindrical portion I04 of the sleeves and positioning annular washers or plates I06, I00 on the bolt at opposite ends thereof, one of said plates having engagement as at I08 with the bolt head and as at H0 with the end of the portion I04 of the adjacent sleeve, the other of said plates having engagement as at II2 with the lock washer 54 and as at I I4 with the end portion I04 of the adjacent sleeve.

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 a spirit of the invention or the scope of the claims.

I claim:

1. In a railway car truck, a frame having a brake hanger bracket comprising spaced depending supports, a brake hanger extending between said supports, a pivot member extending through aligned openings in said supports and said hanger, bushings in the openings in said supports and sleeved over said member, each of said bushings comprising a pair of telescoping tubular elements, and resilient means compressed therebetween, the outer elements of said bushings being fixed to the associated supports and having an inwardly directed annular flange at one end thereof, the inner elements of said bushings having an annular flange at one end thereof cooperating with said inwardly directed flange to position said resilient means therebetween, a pair of annular plates sleeved over said pivot member at opposite ends thereof and having abutment with the adjacent other ends of said inner elements, and

abutment means on said pivot member in engagement with said plates and urging said inner elements into engagement with opposite sides of said hanger, whereby said hanger, said inner elements and said pivot member are rotatable as a unit during movement of said hanger relative to said bracket, said resilient means being placed in shear during such movement.

2. In a railway car truck, a frame having a brake hanger bracket comprising spaced depending supports, a brake hanger extending between said supports, a pivot member extending through aligned openings in said supports and said hanger, bushings in the openings in said supports and sleeved over said member, each of said bushings comprising a pair of telescoping tubular elements, and resilient means compressed therebetween, the outer elements of said bushings being fixed to the associated supports and each having an inwardly directed flange at one end thereof; each of the other of said elements having outwardly directedfianges receiving said last-mentioned flange therebetween and having one of the flanges thereof cooperating with said inwardly directed flange to position said resilient means therebetween, and

abutment means on said pivot member at opposite endsthereoi in engagement with the other of said flanges on said inner elements urging said parallel supporting Inemberaa brake hanger extending between said members, a'bolt extending through aligned openings in'said members and hanger, a bushing in the opening in-each member and comprising telescoping sleeves with the outer sleeve fixed tosaid member and the innersleeve surrounding said bolt and abutting the adjacent side of said hanger, a tubular resilient member compressed between said sleeves, flanges on respective sleeves in engagement with opposite ends of said tubular membenand means on the threaded end of said bolt in engagement with one or said inner sleeves and a head on said bolt in engagement with the other of said inner sleeves, said inner sleeves, bolt, and means and said hanger being rotatable as a unit relative to said bracket and said outer sleeves for placing said resilient members in shear, the flanges on one of said sleeves being engageable with the other of said sleeves for limiting movement of said unit radially outward of said bracket.

4. In a railway car truck, a frame having a brake hanger bracket comprising spaced parallel depending members, a hanger extending there between, a bolt extending through aligned openings in said members and hanger, a bushing in the openings in each member and comprising telescoping sleeves surrounding said. bolt with the outer sleeve fixed to said member and the inner sleeve abutting the adjacent side of said hanger, resilient means compressed between said sleeves, means on the threaded end of said bolt engaging one of said inner sleeves .for urging said inner sleeves into engagement with theopposite sides of. said hanger for movement therewith, said resilient means being operativeto maintain said hanger against movementrelative to said bracket:

and being placed in shear, during actuation of said hanger by an external force, to return said hanger to its initial position, and stop means comprising a radially extending member on one of the sleeves of each bushing engageable with the other sleeve of the bushing for limiting compressicn of said resilient means and also movement of said hanger radially outward of said bracket.

5. In a railway car truck, a frame having a brake hanger bracket comprising spaced parallel supporting members and a hanger extending therebetween, aligned openings in said members and hanger, bushings in the openings in said members, a retaining member extending through said bushings and the openings in said hanger and affording pivot means for said hanger, each of said bushings comprising a sleeve fixed to the associated supporting member and a sleeve surrounding said retaining member and having abutment with the adjacent side of said hanger, resilient means compressed between said sleeves, stop means comprising radially extending rigid a unit during elements on the sleeves surrounding said 'retainl ing member cooperable with the sleeves fixed to said supporting members to limit compression of said resilient means upon lateral angling of said hanger, and means on said retaining member in engagement with the sleeves in abutment withopposite sides of said hanger and operative to urge the same into tight engagement to cause the same and said retaining memberto rotate as a unit during lateral angling of said hanger for placing said resilient means in shear.

6; In a railway car truck, a frame having abrake hanger bracket comprising spaced parallel supporting members, a hanger extending therebetween, aligned openings in said members and said hanger, a bushing in the openingin each member and comprising an outer sleeve fixed to said member, an inner sleeve having an annular radially outwardly extending flange abutting the adjacent side of said hanger and loosely re-- ceived within the associated outer sleeve, and re silient means compressed between said sleeves, said flanges serving to position said resilient means and being 'engageable'with the internal surfaces of said outer sleeves to limit compression of said resilient means during lateral angling or radial movement of said hanger, a retaining.

member extending through said inner sleeves and having abutment means at opposite ends thereof in engagement with said inner sleeves urging said I inner sleeves into engagement with opposite sides of said hanger, whereby said hanger, retaining member, and said inner sleeves are movable as a 7 unit during movement of said hanger relative to said bracket to further compress said resilient members or to place said members in shear to:

return said hanger to its initial position.

7. In a railway car truck, a frame having an integral brake hanger bracket comprising spaced parallel supporting members, a brake hanger extending between said members, a bolt extending through aligned openings in said members and hanger, a bushing in the opening in each member and comprising telescoping sleeves with theouter sleeve fixed to said member and the inner sleevesurroundlng sat bolt and abutting the adjacent side of said hanger, a tubular resilient member compressed between said sleeves, flanges on respective sleeves in engagement with opposite ends of said tubular member, the flanges on one ofthe sleeves of each bushing being engageable with the associated other sleeve of the bushing to limit compression of said resilient member upon lateral angling of said hanger, and means on the threaded end of said bolt in engagement with one of said inner sleeves and a head on said bolt in engagement with the other of said inner sleeves, said inner sleeves, bolt, and means and said hanger being rotatable as a unit rela tive to said bracket and said outer sleeves for placing said resilient members in shear.

8,-In. a railway car truck, a frame having a, brake hanger bracket comprising spacedparallel' depending members, aligned openings in said members, a bushing in each opening comprising an outer and an inner sleeve, a hanger between said bushings in abutment at opposite sides there of with the inner sleeves of the respective hushings, resilient means compressed between the sleeves of each bushing, securing means extending through said inner sleeves of said bushings and said hanger, and means on the opposite ends of said securing means engaging the remote ends of said inner sleeves for drawing said inner sleeves tightly against the opposite sides of said hanger for movement therewith, said resilient means be,- ing operative to normally maintain said hanger against movement relative to said bracket and during actuation of said hanger by an external force being placed in shear to return said hanger to its initial position.

9. In a railway car truck, a frame having a brake hanger bracket comprising spaced dependingsupports, a brake hanger extending between said supports, a pivot member extending through aligned openings in said supports and said hanger, bushings in the openings of said supports and sleeved over said member, each of said bushings comprising a pair of telescoping tubular elements, and resilient means compressed therebetween, the outer elements of said bushings being fixed to the associated supports and the inner elements having engagement with abutment means on said member operative to urge the same into tight engagement with opposite sides of said hanger to permit movement of said hanger, said member and said last-mentioned elements as a unit during lateral angling of said hanger.

10. In a railway car truck, a framehaving an integral brake hanger bracket comprising spaced parallel supporting members, a brake hanger extending between said members, a bolt extending through aligned openings in said members and hanger, a bushing in the opening in each member and comprising telescoping sleeves with the outer sleeve fixed to said member and the inner sleeve surrounding said bolt and abutting the adjacent side of said hanger, a tubular resilient member compressed between said sleeves, and means threaded on said bolt in engagement with the adjacent inner sleeve for urging the head of said bolt into engagement with the other inner sleeve and said inner sleeves into tight engagement with the opposite sides of said hanger for movement therewith during lateral angling of said hanger.

11. In a railway car truck, a frame having a brake hanger bracket comprising a pair of supports, a brake hanger extending between said supports, pivot means extending through aligned openings in said supports and said hanger, bushings in the openings in respective supports and sleeved over said pivot means, each of said bushings comprising telescoping tubular members and resilient means under compression therebetween, the inner members of said bushings being fixed to said pivot means and said hanger and the outer members being fixed to said supports, and stop means on said inner members comprising radially extending rigid elements disposed within and engageable with said outer members to limit radial outward movement of said hanger.

12. In a railway car truck, a frame having a brake hanger bracket comprising a pair of supports, a brake hanger extending between said supports, pivot means extending through aligned openings in said supports and said hanger, bushings in the openings in respective supports and sleeved over said pivot means, each of said bushings comprising telescoping tubular members and resilient means under compression therebetween, the inner members of said bushings being fixed to said pivot means and said hanger and the outer members being fixed to said supports, and

8, stop means on each inner member comprising radially extending rigid elements disposed within and engageable with the associated outer member to limit lateral angling of said hanger in the plane of said pivot means.

13. In a railway car truck, a frame having a brake hanger bracket comprising spaced means, a hanger extending therebetween, aligned openings in said means and said hanger, a bushing fixed in the opening in each of said means and comprisingtelescoping relatively rotatable members and a resilient member under compression therebetween, a pivot member extending through the inner members of said bushings and the opening in said hanger and having means associated therewith adapted to maintain said hanger and said inner members in fixed relationship for movement as a unit during lateral angling of said hanger to place said resilient members under compression, and annular flanges on said inner members loosely received within the outer members of the respective bushings for abutment thereagainst to limit the compression of said resilient members.

14. In a railway car truck, a frame having a brake hanger bracket comprising a pair of supports, a brake hanger extending between said supports, a pivot member extending through aligned openings in said supports and said han er, a bushing in the opening in each support and sleeved over each member, said bushing comprising spaced telescoping members, one of said telescoping members being fixed to said support and the other of said telescoping members being fixed to said pivot member and said hanger for movement therewith, resilient means under compression between said telescoping members, and stop means on similar members of the respective bushings comprising rigid elements extending toward the other of said members of said bushings for abutment thereagainst to limit compression of said resilient means.

15. In a railway car truck, a frame having a brake hanger bracket comprising a pair of supports, a brake hanger extending between said supports, pivot means extending through aligned openings in said supports and said hanger, and bushings in the openings in respective supports and sleeved over said pivot means, each of said bushings comprising telescoping tubular members and resilient means under compression therebetween, the inner members of said bushings being fixed to said pivot means and said hanger and the outer members being fixed to said supports, and radially extending projections on one of the members of each bushing engageable with the other of said members of the bushing for limiting compression of said resilient means.

WALTER. H. BASELT.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,758,712 Morris May 13, 1930 1,895,663 Humphrey et al. Jan. 31, 1933 2,246,894 Oelkers June 24, 1941

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