US2169729A - Wear plate for brake hangers - Google Patents

Description

v. H. HARBERT 2,169,729

WEAR PLATE FOR BRAKE HANGERS Filed Dec. 18, 1936 'Patented Aug. 15, 1939 UNITED STATES WEAR. PLATE FOR BRAKE HANGERS Victor H. Harbert, Chicago, Ill., assignor to Illinois Railway Equipment Company, Chicago, Ill., a lcorporation of Illinoisv Application December 18, 1936, Serial No. 116,495

My 'invention relates to an element or plate adapted to support the upper end 'of the usual hangerl of the brake-head-of railroad cars for the purpose of relieving the walls of the socket or pocket formed in the bracket arm, thatusually is made integral with the truck frame, of wear, while at the same time permitting free oscillatory or swinging movement of the brake hanger or link.

The brake heads of railroad cars are pendently supported in place by suitable hangers or links, of U-shape with eyeleted ends to receive a supporting pin, or of the continuous loop type; these links being supported in a suitable socket or pocket formed in a laterally disposed arm. or bracket generally formed integral with the truck frame. f l l These arms or brackets are cast integral with Vthe truck frame and hence are of cast metal, while the pins or links are of harder metal with the result that the walls of the sockets in the arms or brackets becomeworn, due to the constarrt chatter and vibratory movement of the hanger in the pocket, allowing the hanger and suspended brake heads to drop down beneath the normal point for proper brake application and as required in railroad operation.

My invention relates toa hanger supporting plate which may be easily applied and replaced and which may also afford interlocking engagement with the bracket yarm or walls of the hanger receiving socket so as to prevent lateral movement and at the same time also relieve the fastening 'means or bolt of the thrusts that may be encountered during brake operation.

My improved wear plate is also so constructed that contact with the fastening means or pin is prevented and wear of the fastening pin or bolt obviated.

The above enumerated objects and advantages of my invention, as Well as other advantages inherent in the construction, will be more readily comprehended from the following detailed description of the yaccompanying drawing, wherein:

Figure 1 is a side elevation of the socketed arm of a truck frame; the socket being provided with my improved Wear plate and the upper portion of the hanger; a portion of the truck being also shown.

Figure 2 is a vertical sectional View taken substantially on the line 2-2 of Figure 1.

Figure 3 is a cross sectional view taken substantially on the line 3-3 of Figure 1 looking in the direction of the arrows.

s claims. (c1. iss-209) suitab-le Wallas at I4, see Figure 2.

The rear wall portion I4 at opposite ends of the socket is recessed as at I5, see Figure 2. Recessing the rear wall III at the ends of the pocket or socket as described and shown in Figure 3 provides the rear part of the socket with the vertically extending rib I6, see Figures 3 and 4; the rib being for a purpose later described.

The lower wall I3 of the socket adjacent the free or forward end is provided with a trans'- versely disposed groove I'I, see Figure 4, and the lends of this groove are shown provided with holes extending entirely through the wall I3, as shown at I8, Figure 2. The holes I8 are substantially in alignment with similar holes I9 in the upper wall I2 and spaced apart like holes I8 to receive the hair-pin or U-shape bolt 20, see Figure 1.

The brake hanger 2l may be of the conventional continuous loop or link type and the spacing between the jaws or walls I2 and I3 is suiicient to enable the easy insertion of the upper end of the hanger 2| therebetween.

The bracket I Il and the socket forming portions thereof, like the truck frame, are of cast metal while the hangers are usually of harder metal. As a result of this condition, the constant chatter and vibration and swinging movement of the hanger causes the lower wall I3 to become worn, allowing the brake head and shoe to drop down below proper braking position, while at the same time materially reducing the strength of the lower wall I3 below the point of safety.

With the wall I3 worn as mentioned, the entire truck must be taken out of service until the bracket or arm I0 and the socket providing wall I3 can. be repaired or replaced.

In order to obviate these difculties, I have devised the wear plate 22, shown in perspective in Figure 5 and inlink supporting position in the other iigures.

Figure 4 is a vertical sectional view taken sub- `stantiallyon the line 4 4 of Figure 1.

Figure 5 is a perspective View of my improved wear plate.

My improved wear plate is intended for use in the hanger receiving socket formed in the outer end of the bracket arm I0 generally formed integral with the truck frame, a portion of which is shown at II; the socket or pocket at the end of the arm being formed by means of the vertically spaced wall portions or jaws I2 and I3 whereby a socket or pocket open at both ends and one longitudinal side is provided; the upper and lower walls or jaws I2 and I3 at the opposite longitudinal side ofthe socket being united by a '15 This plate 22 is of width and length commensurate with the width and length of the lower wall I3 of the pocket, with the rear longitudinal side of the plate provided with an upward curvature at 23 to conform with and to contact the rear arcuate wall I4 of the pocket, as shown in Figures 2 and 4.

This curved rear longitudinal side 23 of plate 22 intermediate of the ends is provided with a socket or cut-out portion at 24 adapted to receive the upwardly disposed rib I6 formed integral with the rear wall I4 of the pocket andas more clearly shown in Figure 3.

The plate 22 intermediate of the front and rear longitudinal sides is shown as preferably provided with a longitudinally disposed rib 25 and the plate, rearward of the rib 25 and in conjunction with the upwardly curved portion 23 is arcuately dished to provide a hanger receiving.

groove; the groove allowing free oscillatory movement of the hanger and the rib 25 tending to hold the hanger in the groove and away from the retainer means or pin 20.

The plate 22, forward of the rib 25, is shown provided with a pair of openings 26, spaced apart to register with the holes I8 and I9 in the lower and upper walls I3 and I2 of the pocket when the plate 22 is in proper position.

As is evident from the structure shown, after the U-pin 20 has been inserted through the registering holes I9, 26 and I8, movement of the wear plate 22 is impossible. As a matter of fact, with wear plate 22 constructed as shown and with the notched or cut-away portion 24 in the rear wall receiving the vertical rib I6, any suitable type of pin or bolt may be used instead of the hair-pin type shown.

In order to further hold the plate 22 against any possibility of forward shifting and to also relieve the fastening pin or bolt 20 of forward thrusts I provide an anchor at the forward end of the wear plate 22. The lower side of the Wear plate is provided with a depending rib or boss 21, see Figure 4. The boss 21 is arranged intermediate of the pin receiving holes 26 in the plate and is adapted to extend into the groove I1 formed in the lower wall or jaw I3 of the bracket. The boss 21, therefore, will prevent forward movement of the wear plate during oscillatory movements of the brake hanger 2I while the rib I6 on the rear wall of the pocket, in interengaging relation with the socket 24 in the rear side of the plate, will anchor the latter against any transverse movement toward the ends of the pocket.

With the anchoring means described any type of plate fastening means, as for example an ordinary Cotter, or a single bolt, may be employed because the fastening means is not subjected to plate vibration; and movement or shifting of the hanger in the pocket or socket is prevented by the upstanding rib 25 which is preferably of heighth somewhat greater than the distance between the upper end of the link or hanger 2I and the top wall of the pocket or socket, as can more clearly be seen in Figure 4.

AIn preventing contact of the hanger with the fastening bolt or means 20 wear of the latter is also prevented'and hence breakage and loss of the fastening means are obviated and a longer lived structure is provided.

In assembling, the hanger 2| is placed in the groove of plate 22, namely rearward of rib 25, and the plate with the superposed hanger then inserted into the pocket or socket.

What I claim is:

1. A wear plate for brake hangers adapted to be insertedin the brake hanger receiving socket of a truck frame, said plate on its upper face having a hanger receiving groove while the rear side and the bottom side of the plate are provided with socket wall interengaging portions.

2.. A Wear plate for brake hangers comprising a plate of predetermined width and length, said plate on its upper face and adjacent the rear longitudinal side being formed to provide a hanger receiving groove extending longitudinally of the plate, the rear longitudinal side of the plate and the bottom surface of the plate adjacent the forward longitudinal side being formed to provide socket wall interengaging surfaces.

3. In combination with the brake hanger socket of a truck frame, the rear wall of the socket having a vertically disposed rib while the lower wall of the socket is provided with a groove, the upper and lower walls of said socket having registering bolt receiving openings; a wear plate formed to conform with the lower and rear walls of said socket and having a hanger receiving groove on its upper face, the rear longitudinal side of the plate being formed to interengage the vertically disposed rib of the rear wall of said socket while the lower face of the plate is provided with a depending lug adapted to extend into the groove in the lower wall of the socket, said plate being provided with apertures adapted to register with the bolt receiving apertures in the walls of said socket.

VICTOR. H. HARBERT.

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