Abstract: A strip of shoe rim steel has holes punched, and lining is molded to it in segments with a flat or curved top, the strip then being bent at locations between the lining segments and remaining flat so as not to destroy the bond. The assembly is trimmed to length, the web attached and the lining pads ground to final dimensions. The number and length of lining pad segments can be varied. The lining can be used down to the rim ends at each pad while the pad center still contains lining where the molding holes are located.

Abstract: The assembly is made by using a formed and fully densified uncured segment of brake lining material. The lining and shoe surfaces to be mated are coated with adhesive, the adhesive is dried for a short time and the lining and shoe are pressed together. A punch then drives partially through the uncured brake lining material, forcing the still soft lining material into holes in the brake shoe, creating a mechanical interlock in addition to the adhesive bond. The shoe and lining are thus held together until fully cured. The staking can be easily performed without expensive confining molds. The adhesive is not required when the mechanical interlock is sufficiently strong to retain the lining under any expected brake torque conditions.

Abstract: A clutch driven plate assembly utilizing cushion springs secured to a clutch plate and having the annular friction facings bonded directly thereto without the use of rivets. Each cushion spring has an offset portion that substantially overlaps the next adjacent cushion spring with a substantial flat area available for bonding of the friction facings thereto, and the cushion springs will function to provide cushioned clutch engagement.

Abstract: The circular friction lining carrier member having replaceable friction linings comprising radially inner and outer circumferential grooves in the carrier member to guide and hold the linings and a supporting element disposed between adjacent ones of the linings to transmit circumferential forces with the supportive elements being undetachably secured to the carrier member with radial clearance between the side walls of both grooves.

Abstract: A brake shoe (1) for a railway brake has a dovetail slot (4) in its front face for receiving a projection (3) of complementary shape on a brake pad (2) for mounting the pad on the shoe, and a retainer (6) slidably mounted in an aperture in the shoe and having a tongue (8) which projects into the slot for retaining the pad on the shoe, the retainer being biased by leaf-springs (10) fixed to the rear face of the shoe into an operative position so that danger of the retainer being left in a retracted position after a pad replacement operation is eliminated.

Abstract: A carrier member for replaceable friction linings for clutch-type disc brakes wherein the friction linings are guided and held radially relative to a brake disc by a positive engagement with grooves in an adjacent surface of the carrier member with the friction linings being supported in the circumferential direction relative to the disc by supporting elements connected to the carrier member. The supporting elements engage bores in the carrier member perpendicular to the adjacent surface and are held in their mounted position by a friction lining overlapping an edge of the adjacent supporting element.

Abstract: A friction pad configuration and a method and apparatus for fastening said pads to a disk core member wherein the base of the pad is formed with a plurality of extended tabs that are inserted in slots in the core and secured to the tabs of a pad on the opposite surface of the core by a clip that draws the base-to-base mounted pads together on the core. Alternatively, and for mounting on a single face surface of the core, U-clips are mounted on the tabs and inserted through the core to the opposite surface thereof and the ends of the U-clips are bent down into annular grooves in the face surface of the core to securely mount the pads to the core.

Abstract: In order to suppress squeak noise generated at the time of braking of a disc brake, there is provided a member for removing abrasion powder as well as a conventional pair of friction pads which are provided on both sides of the disc. The member is designed so as to remove abrasion powder adhering to the disc at the time of engagement of the disc with the friction pads.

Abstract: A friction pad configuration and a method and apparatus for fastening said pads to a disk core member wherein the base of the pad is formed with a plurality of extended tabs that are inserted in slots in the core and secured to the tabs of a pad on the opposite surface of the core by a clip that draws the base-to-base mounted pads together on the core. Alternatively, and for mounting on a single face surface of the core, U-clips are mounted on the tabs and inserted through the core to the opposite surface therof and the ends of the U-clips are bent down into annular grooves in the face surface of the core to securely mount the pads to the core.

Abstract: In a friction component for brakes, clutches and the like, a core member is adapted for carrying a plurality of friction pads or cups on either or both of its surfaces. According to this invention a cylindrical metal bushing is positioned in an aperture through the core member to contact the bottoms of friction pads on the opposite surfaces of the core. The bushing has annular projections at the ends that make contact with the bottoms of the friction pads and passage of an electrical welding current through the assembly affects welding of the bushing projections to the bottoms of the pads and rigidly secures them to the core member.

Abstract: A brake lining support member for disk brakes for railway vehicles and the like has an insertable brake lining retained in position by a locking bar at least one end of which is secured by a U-shaped spring clip having parallel legs one of which is mounted in a bracket on the brake lining holder and the other leg mounted in the locking bar.

Abstract: A coupling includes a rim assembly, a drum assembly rotatable relative to the rim assembly about an axis of rotation, a pneumatically expandable tube having an exterior surface attached to the rim assembly, a plurality of spaced apart lugs disposed on the exterior surface of the tube element and a plurality of shoe members each of which includes first and second spaced apart parallel surfaces. Each of the shoe members includes means on the first surface thereof which is connectable with one of the lugs on the tube element to support the first surface of the shoe member contiguous to the exterior surface of the tube member.

Abstract: A brake shoe assembly including a brake lining member and a backing plate or shoe have aligned rivet opening pairs for riveting together with the use of dead soft metal rivets having tapered shank portions the volumes of which are substantially equal to the combined volume of the openings through which they extend for riveting, the rivets also having tubular, cylindrical end or tip portions adapted to roll over the outside of the backing plate or shoe while the shank portions substantially completely fill their openings during setting of the rivets to provide for exceptional strength, both in shear and tension, of the assemblage.

Abstract: There is described a brake shoe for a ring type brake which means it has a cylindrical brake ring secured to a member to be braked. The brake shoe comprises a part-cylindrical, preferably sheet metal support plate having on one face a brake lining and on the opposite face an elongate rib extending generally between opposed edges of the support plate and having a substantially flat bearing surface. Preferably the rib is stamped in the sheet metal support plate and receives a complementary portion of the brake lining material therein. The rib may be disposed cordally of the support plate or parallel to the generatrices thereof. Two such ribs may be provided on a support plate parallel to each other though spaced at different distances from median plane thereof. The contact areas of the substantially flat bearing surface with the piston of the hydraulic unit associated therewith are preferably dissymmetrical about one or both of the median planes of the brake shoe.

Abstract: A brake shoe has a groove in a support member to receive a dove-tail guide on a brake lining to hold the brake lining on the support member. One longitudinal side of the groove is inclined to define a wedge and the other longitudinal side is straight. Springs are mounted on the support member on the straight side of the groove to extend behind and clamp the brake lining dove-tail guide. Modifications of the groove include inclined sides along only portions of the groove and springs at the straight wall portions of the groove to extend behind and clamp the dove-tail guide of the brake lining.

Abstract: Brake disk wear pad plates have various different types of snap fasteners so that adjacent wear pads may be releasably joined together. Desirably, the brake pad plates are located on opposite sides of a brake disk core and thus are held together by the fasteners usually extending through the core. Generally, the snap fasteners may be of a projection-recess-type fitting in which the projection and recess matingly and releasably engage each other or of a common-component type wherein a structural part matingly and releasably engages both adjacent fasteners. When the brake disk wear pads are worn, the brake disk pad plates are readily disengaged from each other, new wear pads inserted into the brake disk plates and the wear pad plates once again snap fastened to each other.

Abstract: A car retarder shoe structure in which a removable shoe member is attached to the brake beam of a railway car retarder by means of bolts. Each bolt is tapered and the corresponding hole in the shoe is likewise tapered. The tapered portion of the bolt is at least as long as and conforms substantially to the taper of the hole. It is the tapered surface of the bolt shank seated against the tapered hole which serves to hold the shoe in place. The bolt head is shaped or contoured to contact a portion of the shoe and prevent rotation while the nut is being installed. Such structure permits the shoe to remain firmly attached to the brake beam under prolonged or excessive wear conditions caused by the retardation of passing car wheels, even though all or a substantial portion of the shoe and the bolt head are worn away.

Abstract: The method includes the steps of forming separately a pair of spaced recesses in a carrier plate, the recesses having a parallelogram configuration other than a rectangle and a cross member therebetween providing an axis of symmetry, the recesses being symmetrically disposed with respect to the axis of symmetry to approximate a sector of a circle; pressing and age-hardening separately a plate of friction material having a thickness corresponding to the desired thickness of the friction pads; cutting at least a pair of friction pads from the plate having the dimensions and shape of the recesses; and placing and securing each of the pair of friction pads in a different one of the recesses so that the pair of friction pads are disposed symmetrically with respect to the axis of symmetry to approximate a sector of a circle.

Abstract: The brake shoe of the present invention comprises a wear brake shoe body against which there has been cast a layer of metal consisting of hardenable material. By making the casting sufficiently thick the wear layer is prevented from losing its surface hardness.

Abstract: A drum-type brake adaptive to front and rear-axle constructions on motorized vehicular equipment, in which braking torques are developed by one or more radially-operating caliper units positioned around the circumference of an open brake drum co-rotatable with the vehicle road wheel. The caliper unit comprises an inner and an outer segmental brake shoe which carry detachable linings, respectively, in spaced confronting relationship that straddle-mount the drum's flange to apply braking forces to opposite faces, respectively, thereof, and reciprocative mechanism including a pair of interengaging push-pull members projecting from the brake shoes, respectively, and slidably installed along the radius of the drum's backing plate.

Abstract: A closure for a brake jaw holder for disc brakes, especially for use in connection with rail vehicles, in which a closure latch extends in a direction transverse to the guiding direction of the brake lining and in which the lining in a closing manner extends from the rear side of the lining carrier into an opening provided therein. At both sides of the opening in the closure latch there is provided an oblong opening extending perpendicularly with regard to the surface of the lining carrier while the pertaining bolt or pin is arranged on the lining carrier. Elastic spring structure is provided for arresting the closure latch when the bolt or pin occupies either one of its end positions in the oblong opening.

Abstract: This invention relates to a brake shoe and brake head assembly wherein a brake head for carrying one type of brake shoe may be modified to enable securing thereto and removing therefrom other types of brake shoes without removing the brake head from a brake lever on which the brake head is pivotally mounted.

Abstract: There is disclosed a brake block for a bicycle which comprises a block of friction material, an elongate rigid brake shoe element fixed to the block, the ends of the brake shoe element being surrounded by the friction material, and means for securing the block in a braking mechanism. Also disclosed are methods of making brake blocks for bicycles. One method comprises locating an elongate rigid brake shoe element in a mould, the shoe element having fixed thereto a stud for securing the block in a brake mechanism, moulding a block of friction material around the shoe element so that the end portions of the shoe element are surrounded by the friction material and removing the brake block so formed from the mould.

Abstract: A device including a brake lining or the like friction lining, such as a brake shoe, which device is more economical and simpler to produce and avoids squealing due to loosening and separation of the lining relative to its support. The brake lining device of the present invention includes a rigid metal support, a lining of friction material provided with apertures therethrough; these apertures form a narrower inner portion and a wider outer portion, a cap, of metal, having a cup-shape and a flat annular flange, is engaged in each aperture with the flange in abutment against the shoulder portion defined between these outer and inner aperture portions, and having its closed end axially tensioned away from the flange and electrically welded against the metal support.

Abstract: There is disclosed a brake shoe including a backing plate having a recess therein to receive the friction pad. Each of the radially inner and outer vertical walls of the recess with respect to the brake disc axis have a different predetermined configuration to retain the friction pad in the recess and to ensure that the entire backing plate receives the braking stresses rather than just a retaining arrangement employed to assist in retaining the friction pad in the recess.

Abstract: A brake shoe support for a spot-type disc brake having a caliper embracing the brake disc. The caliper supports the brake shoe remote from the brake actuation device. The brake shoe includes a projection which is disposed in a supporting bore in the caliper and is held in position by a bolt having a radial groove which is engaged by a retaining spring secured to the caliper. The brake shoe also includes a brake pad carrier plate and a brake pad with the brake pad having a first portion parallel to the brake disc and a second portion perpendicular to the brake disc extending over the edge of the brake pad carrier plate. The second portion abuts a supporting surface provided in the caliper adjacent the end of the supporting bore adjacent the brake pad carrier plate to prevent twisting of the brake shoe.

Abstract: The invention concerns shoe drum brakes and provides for such brakes, a replaceable shoe lining component which is detachably secured to the shoe platform or backplate, the latter remaining permanently in position in the brake assembly. The lining component preferably comprises a thin carrier plate and a lining of friction material secured to the carrier plate; the shoe platform and the carrier plate having detachably inter-engageable means such as tongues and slots by which they are capable of being securely connected together in the brake assembly.