US2276781A - Brake hanger supporting and retaining means - Google Patents

Description

March 17, 1942. M. s. JOHNSON 2,276,781

BRAKE HANGER SUPPORTING AND RETAINING MEANS Filed May 27, 1941 a, Aff A,

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7M l l I. VImran@ A Patented Mar. 17, 1942 BRAKE HANGER SUPPORTING AND RETAININGMEANS Malcolm S. Johnson, Chicago, Ill., assigner to Illinois Railway Equipment Company, Chicago, Ill., a corporation of Illinois Application May 27, 1941, Serial No. 395,436

Application May 27, 1941, Serial No. 395,436

(Cl. 18S-209) 8 Claims'.

My invention relates to means for swingingly holding the link hanger whereby the brake head of a railroad car is pendently supported in place; the invention, more specifically stated, involving a bracket'I formed integral with the truck frame, or otherwise rigidly secured thereto, and provided with forwardly presented and vertically spaced jaws integral with the vertical rear Wall of the bracket, said wall being formed with a reenforcing rib integral therewith and with the top and bottom jaws and arranged intermediate the open sides of the bracket, while the rear wall on opposite sides of said rib provide wide bearing surfaces for a pair of complementary, superposed hanger retainer blocks which fit between the spaced jaws; the rear vertical sides of said blocks being recessed to receive the reen-V forcing rib of the bracket.

The invention has for its object the provision of a bracket with a flat back Wall on opposite sides of the reenforcing rib whereby comparatively wide flat bearing surfaces for the retainer blocks are provided at both ends of the retainer blocks where the bearing is most effective and can be observed, while at the same timev affording means for holding the retainer blocks against longitudinal or sidewise movement.

A further object of the invention is the provision of a bracket wherein the bearing surfaces for the retainer blocks are arranged substantially at right angles to the transverse axis of the bracket and prevent a rocking or rolling action on the part of the retainer blocks and the resultant wear.

Another object of the invention is the provision of retainer blocks wherein the width of the hanger bearing is reduced therebyv minimizing the lateral slap of the hanger in the retainer, particularly after Wear has occurred.

The invention also contemplates retainer blocks whose forward vertical faces are provided with oisets for the purpose of receiving offset surfaces on a specially constructed adapter which is used with the retainer locking pin which passes through registering holes in the two jaws of the bracket.

The objects of my invention and the advantages thereof will all be readily comprehended from the detailed description of the accompanying drawing wherein: Y

Figure l is a side elevation of my improved bracket and assembled retainer blocks with a portion broken away and shown in section to dis- `close the hanger sockets in the retainer blocks as well as the locking means; the upper end of a hanger being shown in' dotted lines.

Figure 2 is a cross sectional view taken on the line 2-2 of Figure 1, looking in the direction of the arrows and the outline of the hanger omitted.

Figure 3 is a perspective View of my improved bracket.

Figure 4 is a perspective view of the improved retainer blocks in assembled relation.

The specific embodiment of my invention as disclosed in the drawing contemplates an arm I5 which is preferably formed integral With the Ycar truck frame with the outer end of the arm enlarged vertically and laterally with the lateral enlargement formed into the vertically spaced jaw members I6, Il, whose inner surfaces preferably diverge or flare slightly toward their free ends as more clearly shown in Figure ,1, providing a retainer and hanger receiving socket open at the front and at both sides to permit the hanger I8, partly shown in dotted lines in Figure 1, to straddle the lower jaw member Il. The outer ends of the jaw members I6, Il are provided with registering oblong holes I9 for the purpose of receiving a locking pin or means whereby the hanger retaining means or blocks are locked in the socket.

The socket formed by the two jaw members i6, Il is closed at its `rear or inner end by the vertical Wall 20 which is provided with a substantially fiat inner face except for an intermediate vertically disposed reenforcing rib 2i whose forward side is preferably made arcuate as shown at 22 in Figure 3 so as to permit it to extend and to merge into the upper and lower jaw members a substantial distance forward of the wall 20 to properly reenforce the jaws without interfering with the use of retainer blocks of sufcient thickness or strength; the transverse or side to side dimensions of the wall 20, the width of the rib 2l and its disposition are such that comparatively wide and flat bearing surfaces 23, 23 are provided and arranged substantially at right angles to the transverse axis of the bracket.

In order to properly support the brake heads and also relieve the bracket of undue wear, the jaws of the bracket are spaced to receive the retainer means or blocks 24, 24, whose opposing faces are correspondingly grooved to combinedly provide a hanger receiving socket or channel 25 for swingingly supporting the closed upper end of the hanger or link i8, of present day standard construction with the upper end reduced and of non-circular cross section as shown in dotted lines in Figure 1.

In view of the reduced non-circular construction of the upper end of the hanger or link, the grooves in each retainerblock 24, instead of being semi-circular, are somewhat reduced in transverse dimensions and provided with straight sides as shown at 26, which will minimize or reduce the lateral slap of the hanger in the retainer especially when they become worn, while at the same time somewhat increasing the strength and thickness of the retainer blocks intermediate the grooves and the outer sides.

The rear longitudinal sidesv of the blocks at their ends are provided with substantially at wide vertical faces as at 2T to match the fiat bearing surfaces 23, 23 in the socket of the bracket and each block intermediate the ends is recessed as at 28 to receive rib 2l as shown in Figure 2 and provided with a convex or arcuate wall 29 which matches the forward arcuate face 22 of the reenforcing rib 2l in the socket of the hanger; an interengaging relation between the retainer blocks and the bracket thus being provided which holds the retainer blocks against longitudinal movement.

The matching or contacting faces of the retainer blocks 2li are each shown provided with alternate lugs 3G and recesses 3| which also maintain the superposed relation between the blocks.

The forward longitudinal sides of the retainer blocks are each provided, intermediate the ends, with a vertically disposed groove adapted to register with the holes i9 in the bracket jaws i6, I1; and the blocks at the outer ends of the grooves are offset laterally to provide sockets as shown at 3?; to receive the arcuate ribs 33, 33 formed on the outer substantially semi-cylindrical surface of an adapter 35 employed in connection with the locking pin 35.

In constructions as heretofore employed, the order of arrangement of pin and adapter was reversed-the pin being in contact with the retainer blocks and the adapter being disposed toward the Open end of the bracket, with the outer face of the adapter provided with a longitudinal rib intermediate of and connected to the arcuate ribs adjacent opposite ends of the adapter.

In the present arrangement where the adapter 3G is to be employed in contact with the retainer blocks, the outer face of the adapter intermediate the arcuate ribs 33 is made semi-cylindrical to conform with the semi-circular grooves in the outer longitudinal faces of the retainer blocks 24, while the arcuate ribs 33 present pronounced shoulders within the laterally offset portions or sockets 32 of the retainer blocks and also to the inner faces of the jaws IB, I 'l of the bracket, with the result that longitudinal creeping movement of the adapter is impossible and hence possibility of the locking means or pin` working loose, due to the constant vibration to which the retainers are subjected, is eliminated. As is apparent from Figure l, the arcuate ribs 33 on the adapter d-whose ends are seated in the holes of both jaws l and i'f-aiiord a double bearing, namely on the retainer blocks and also against the inner faces of the bracket jaws, which assists in restraining any rolling or rocking tendency of the retainer blocks that may result from the severe thrusts and vibrations transmitted by the hanger; the tendency to roll or rock being prevented by the wide flat bearing surfaces 23 in the bracket. The opposing faces of the pin 35 and adaptagravar er 34 are made oppositely sloping so as to effect a binding relation between the forward portions of holes I9 in the bracket and the forward faces of the retainer blocks when pin 35 is driven downwardly; and said opposing faces are provided with a longitudinal groove 36 in the adapter and a longitudinal rib 31 on the pin whereby proper movement 0f the pin lengthwise of the adapter is ensured when the pin is driven downwardly into wedging condition. It will be noted in Figure 1 that the holes i9 in the jaws extend slightly rearward of the forward faces of the retainer blocks 24 and that the ends of the adapter do not engage the rear walls of the holes I9, thus permitting the composite locking pin to wedgingly maintain the retainer blocks in the socket of the bracket.

With my improved bracket, the usual pocket at the inner end of the retainer holding socket (formed by the usual side ribs) is eliminated and the entire rear wall of the hanger socket is utilized as a bearing surface; the bracket wall and the rear longitudinal sides of the retainer blocks being formed with at bearing surfaces, namely at the outer sides of the bracket where the condition of the bearing surfaces can be observed and where the bearing is most effective.

The exemplication shown and described is believed to be the best embodiment of the invention but certain modifications are possible without, however, departing from the spirit of my invention as defined in the appended claims.

What I claim is:

l. In brake hanger supporting and retaining means, the combination of an open sided bracket with laterally disposed and vertically spaced jaws unid at their inner ends by a substantially vertical wall and by a vertically extending rib intermediate the opposite sides of the jaws, the vertical wall on opposite sides of the rib presenting wide bearing surfaces, and a pair of hanger holding blocks insertible between said jaws, the rear longitudinal sides of said blocks being formed with substantially flat surfaces adapted to seat against the bearing surfaces on the vertical wall of the bracket, said blocks being provided with recesses intermediate their ends adapted to receive said bracket rib and prevent longitudinal movement of the blocks.

2. Inv brake hanger supporting and retaining means, a bracket composed of a pair of vertically spaced jaws united at their inner ends by a vertical wall provided with wide substantially flat bearing surfaces, the rear wall and the jaws bey ing reenforced by a vertically disposed rib intermediate the opposite side edges of said wall and jaws, the jaws being provided with pin receiving aligned openings.

3. In brake hanger supporting and retaining means, a bracket provided with a vertical wall and vertically spaced jaws extending laterally from said wall to form retainer means receiving socket open at the sides and at the forward end, the rear wall intermediate its opposite side edges and on its inner face being provided with a reenforcing rib connected with both jaws, the vertical wall on opposite sides of said rib within the bracket having at surfaces arranged substanltially at right angles to the transverse axis of the bracket.

Li. In brake hanger supporting and retaining means, a bracket composed of a vertical wall, vertically spaced jaws extending laterally therefrom, and a vertical rib integral with said Wall and the inner ends of said `iaws, the vertical Wall on opposite sides of the rib having fiat surfaces; in combination with a pair of complementary hanger holding blocks arranged in superposed relation and insertible between said jaws, the rear longitudinal surfaces of the blocks intermediate the ends being recessed to receive said rib whereby movement of the blocks through the open sides of the bracket is prevented; and means whereby movement of the blocks through the forward end of the bracket is prevented.

5. In brake hanger supporting and retaining ing means, a bracket composed of a pair of vertically spaced jaws united at their rear inner ends by a vertical wall and a vertical rib arranged substantially at the transverse median line of the bracket, the rear wall being formed with forwardly presented flat bearing surfaces extending from the sides of the bracket to said rib, the outer ends of the jaws having aligned pin receiving holes.

6. In brake hanger supporting and retaining means, a pair of hanger holding blocks of corresponding configuration adapted to be arranged in superposed relation and having vertical rear longitudinal sides with flat faces intermediate their transverse median lines and the opposite ends and recesses at said median lines, the opposing faces of the blocks being each provided with a hanger receiving groove of arcuate formation at the bottom and substantially straight sides, while the front longitudinal sides intermedia-te the ends are provided with vertically extending locking pin receiving grooves, recessed at the ends adjacent the outer horizontal faces of the blocks.

7. In brake hanger supporting and retaining means, a pair of hanger holding blocks of Corresponding configuration and dimensions adapted to be arranged in superposed relation, the contacting faces of each block being provided with a hanger receiving groove, said blocks having vertical rear longitudinal sides with flat faces between their transverse median lines and their ends and recessed at the median lines, each re cess having straight sides and an inner arcuate wall curving toward their contacting faces.

8. In brake hanger supporting and retaining means, a pair of hanger holding blocks of corresponding configuration and dimensions adapted to be arranged in superposed relation and their contacting faces provided with hanger receiving grooves, the rear longitudinal sides having flat vertical faces recessed at the transverse median line, with the rear or inner walls of the recesses curving toward their contacting faces and the latter provided with interengaging surfaces, while the front longitudinal sides intermediate the ends are provided with vertical grooves laterally recessed at the outer ends of said grooves.

MALCOLM S. JOHNSON.

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