Abstract: A brake shoe assembly with a removable brake shoe pad. A brake shoe assembly includes a brake shoe plate. A brake shoe pad and a pair of connector plates are provided. The brake shoe pad is adjustably received on the bottom of the brake shoe plate. The connector plates are slidably positioned onto the top of the brake shoe plate, and are connected to the brake shoe pad through the brake shoe plate by rivets through corresponding openings formed therein. The connector plates are additionally connected to the brake shoe plate by vertical members, with screws inserted through corresponding openings formed therein.

Abstract: A brake pad for disc brakes is provided in which the brake pad comprises a damping plate attached to the reverse face of a lining carrier plate. The damping plate is attached to the lining carrier plate by way of projections which are molded on the lining carrier plate and extend into corresponding apertures of the damping plate. The external ends of the projections are widened so that the damping plate is pressed against the reverse face of the lining carrier plate.

Abstract: The lining (1) includes by studs (2) mounted on a support (3), each being rigid with the support by reason of a mounting element and is characterized in thata) the mounting element (5) consists of a base (9) with a flange (13) with no axial symmetry,b) the support (3) consists of two metal plates, a rigid support plate (7) and a mounting plate (6) having orifices (10) in order to be able to grip the said flange (13) by reason of mechanical connections (8) between these two plates (6, 7),c) at least one of the plates (6, 7) displaying a deformation in such a way as to grip the flange and so achieve rotational locking of the stud (2).

Abstract: A disk brake pad assembly includes a rigid metal backing plate, a brake friction lining pad and a damping structure including a viscoelastic material disposed between the backing plate and the friction lining pad and fixed to each. In one embodiment the damping structure is a perforated metal plate having perforations filled with viscoelastic damping material. The damping plate may be provided along its opposite sides with constraining layers. Such a perforated damping structure may be disposed on either side of the backing plate.

Abstract: A tread brake shoe for a railroad wheel has a cross-section with a bidirectional laminate structure, which includes a core element of a high-friction material for contacting the wheel tread and, at least one low-friction element positioned on the high-friction material sidewall for contact with the wheel flange and to inhibit wheel flange contact with the high friction material.

Abstract: A noise abating brake shoe assembly having a metal brake shoe and a friction material brake block with an elastomeric sound damping material added as a constituent to the brake block or interposed between the brake block and the brake shoe.

Abstract: A disk brake pad and backplate assembly comprises a metal backplate formed with a number of abutments projecting from one face thereof, and a disk brake pad of a fully cured friction material composition, one face of said disk brake pad being provided with recesses wherein said abutments are received, together with a layer of an elastomeric adhesive to bond said pad to said backplate.

Abstract: An improved disc brake pad backing plate assemblage of the dovetail type wherein dovetail end strength for resisting deformation is increased by the use of a special secondary backing plate member in conjunction with a primary backing plate member having a dovetail for mating engagement with the dovetail groove in a disc brake holder. The resultant absence of dovetail end deformation facilitates removal of the disc brake pad from the mating dovetail groove.

Abstract: The subject brake block comprises a cup shaped metal component and an elastomeric component formed in a two part mold. The method involves using the metal component of each brake block as one of the parts used in molding the elastomeric component of the brake block. This decreases the accuracy required in making and aligning the mold parts. The metal component is shaped so that the elastomeric component is mechanically locked in place in it when the elastomeric component is formed.

Abstract: A tread brake shoe for a railroad wheel has a cross-section with a bidirectional laminate structure, which includes a core element of a high-friction material for contacting the wheel tread and, at least one low-friction element positioned on the high-friction material sidewall for contact with the wheel flange and to inhibit wheel flange contact with the high friction material.

Abstract: A disk-brake pad device includes a carbon-carbon lining pad. The disk-brake pad device attaches the pad to the caliper. At least one pad-positioning surface of the caliper has merging therefrom at least one pad-actuating piston. A first plate element (1) of heat-insulating material, called a screen element, is located against the positioning surface. At least one second element (2) of heat-insulating material, called a spacer element, of adequate thickness, having reduced frontal contacts is located against the first element (1). A carbon-carbon lining pad (3) of high-temperature friction material is located against the second element (2). The first element (1) and/or the second element (2) acts to retain the lining pad (3) and to fix the first element and/or the second element to the caliper.

Abstract: A friction pad includes a flat back plate, a friction member fixed to one surface of the back plate, a shim in the form of a thin plate attached to the other surface of the back plate, and a viscous fluid applied between the back plate and the shim. The shim is formed with semi-circular notches in the outer edge and inner edge thereof with respect to the radial direction of the disc, and the notch in the outer edge and the notch in the inner edge have the same curvature.

Abstract: A disc brake assembly having enhanced brake efficiency and improved cooling includes a brake pad having arcuate upper and lower edges and a width that diminishes along its length from its leading edge to its trailing edge. A braking force is exerted on the brake pad by plural hydraulic actuators having pistons aligned with longitudinally spaced portions of the brake pad. The radial and circumferential locations of such portions are selected to minimize differences in the radial wear of the brake pad. The actuators are preferably symmetrically positioned with respect to a brake rotor centerline but may be positioned asymmetrically. The actuator pistons are confined for movement within close tolerances in order to limit the angle though which the brake pads can rock.

Abstract: The present invention relates to a brake shoe assembly with a sealing liner having a brake shoe (11) which includes a brake shoe table (13). A sealing liner (45) formed from an adhesive material is applied to the convex surface (31) of the brake shoe table (13). A friction brake liner (50) is positioned over the sealing liner and convex surface (31) of the brake shoe table (13) and is secured to the brake shoe table (13) by fasteners (61). The sealing liner forms a moisture barrier between the friction brake liner (50) and the brake shoe table (13) to retard the passage of moisture therethrough to prevent rust and corrosion of the brake shoe (11).

Abstract: A spot-type disc brake in which a two part brake housing forms a central radial cavity open at the outside which allows the brake shoes to be removed through the cavity without disassembly of the housing. The brake shoes are engaged by surfaces on short height projection pairs protruding into the cavity from either side, the surfaces machined with a radiused shape concentric with the actuator cylinder bores to facilitate manufacture. The short height allows the radiused shape without preventing removal of the brake shoes. In a first embodiment, the projections are also formed with outer tangential surfaces, with surfaces on the brake shoes urged thereagainst with a retained spring. In a second embodiment, a holding pin extends across the central cavity and through bores at the outside of each brake shoe, a retainer spring engaged with the holding pin and brake shoes.

Abstract: A disc brake prevents the generation of brake noise by chamfering a pair of friction pads which are disposed at both sides, respectively, of a rotating disc. Each pad includes a backing plate and a lining that is rigidly secured to the backing plate, the lining having a friction surface that is to be pressed against the disc. Both side portions of the lining extend outwardly beyond the outer side surfaces of the corresponding claw portions of a caliper in the widthwise direction. The lining is chamfered at each side portion from a position whose distance from the outer side surface of the corresponding claw portion is in the range of from one third to one fourth of the width of the claw portion.

Abstract: A pad assembly for a disc braking system, including a backing plate having protrusions extending upwardly therefrom and with irregular surfaces and a composite brake pad molded in situ onto the braking plate, the composite material of the pad encapsulating the protrusions so that upon thermal expansion during use, the pad will not separate from the backing plate.

Abstract: A brake lining wear indicating device is inserted into an aperture (7) of a brake lining carrier (8) of a drum or disc brake from the side facing away from the brake lining (1) and secured in the aperture. The indicating device includes a slotted (16) sleeve shaped holder (2) and a contact member (3) inserted into and axially secured to the holder and has an electrical conductor (4) therein. In order that the indicating device can be fitted into brake lining carriers of different thickness, holder (2) has on its side facing away from the brake lining (1) a frustonconical section (13) having an outwardly narrowing inner frustoconical area (14) and several axially extending slots (16). When contact member (3) is inserted into holder (2), frustoconical part (13) of the holder is forcibly radially expanded and wedged into aperture (7) of brake lining carrier (8).

Abstract: A friction pad for use in a disc brake includes a backing plate and a lining member secured to the front surface of the backing plate. The backing plate includes a cavity formed in the front surface of the backing plate for receiving therein a portion of the lining member, and a protrusion on the back surface of the backing plate located at a position corresponding to the cavity and projecting outwardly from the back surface of the backing plate. The cavity includes a first recess formed in the front surface of the backing plate in a depressed manner and defined by a side wall, and a second recess formed at the bottom wall of the first recess and defined by a side wall. The bottom of the side wall defining the first recess and the side wall of the second recess are interconnected by a convex surface protruding into the cavity.

Abstract: A brake shoe and friction pad that permits removal and replacement of the pad without removing the brake drum or the shoe from its position within the drum by employing spaced upstanding lugs on one end of the shoe and spaced openings on the other edge. The pad has complementary lateral ears on one edge to engage between spaced lugs and complementary bottom projections adjacent its other edge to engage the spaced openings. Further circumferential support is provided by bolts secured inside each flange near the ends of the pad in a manner that permits removal without separating shoe from drum.

Abstract: A caliper type brake for braking a brake disc including a caliper having a recess in the caliper on one side of the disc, a piston mounted in the caliper on the other side of the disc and including a recess, each recess having one or more ribs forming two or more cavities in each recess and a brake pad mounted in each recess, each brake pad being formed with a number of frangible portions, which break on engagement with the ribs to separate the brake pads into separate sections corresponding to the number of cavities in the recesses.

Abstract: This invention relates to a spot-type disc brake, in particular for automotive vehicles, with a housing straddles a brake disc in a U-shaped manner and has a housing bridge, a first housing leg having a piston-and-cylinder unit, and a second, external housing leg, with a first brake shoe which has a carrier plate and is arranged on the first, piston-side leg, with a second brake shoe which has a carrier plate and is arranged on the second, external housing leg and supports the housing radially relative to the brake disc's axis and with projections on the carrier plate which supports the brake shoe in the radial direction and in the circumferential direction. According to this invention, the projections on the carrier plate of the brake shoe are arranged outside the circumference of the brake disc.

Abstract: A spot-type disc brake, in particular to a disc brake straddling the brake disc internally in which a brake and essential assemblies required for that brake and a process for mounting of such a brake are provided. Particular mounting arrangements allow each of the brake shoes to be removed in a radial direction without having to disassemble the housing or parts of the housing.

Abstract: Arrangement for disc brakes having so-called floating suspension containing a brake disc and a brake caliper which is movably mounted on a caliper holder for axial motions relative to the brake disc. The brake caliper has at least one pair of brake pads having friction linings intended to be brought to bear against braking surfaces on the brake disc. Load-bearing supporting surfaces hold the brake pads normally in their intended positions in the caliper by absorbing the forces acting mainly on the brake pads due to friction against the brake disc by cooperating with edge surfaces on the brake pads. These supporting surfaces extend over only a part of the space up to the brake disc to an imaginary geometrical delimiting plane for each brake pad, said plane extending parallel to the brake disc. The brake pads have protrusions, each of which extend into an opening in the caliper or caliper holder, one opening being provided for each protrusion.

Abstract: A brake shoe for bicycles having a shoe holder provided with a connecting rod on its back, and a shoe block held at its base portion to the shoe holder. The braking face of the shoe block is formed with a projection serving as a gauge for positioning the braking face at an appropriate angle with the rim surface of the wheel. When the brake shoe is to be attached to a brake arm, the brake shoe is so positioned that two points of the shoe block, i.e., one point of the braking face and the projection, are in contact with the rim surface, and the brake shoe in this state is fixed to the brake arm. The brake shoe thus positioned is operable optimally as contemplated by the designer. When the brake is actuated, the projection is readily collapsed without producing any adverse effect on the braking function and removed early by friction.

Abstract: A disc brake assembly includes a disc rotor rotated with a wheel in a body, a mounting member fixed to a stational member of vehicles and having an arm portion in which a pair of grooves extending toward to the axial direction of the disc rotor are provided therein. A brake pad disposed to at least one side of the disc rotor and having a pair of ear portions which are outwardly projected at the center portion or the outer side of both ends in the rotational direction of the disc rotor of its backing plate, respectively and which are fitted into a pair of groove portion formed in the arm portion of the mounting member and slidably supported on the arm portion of the mounting member toward to the axial direction of the disc rotor.

Abstract: A brake friction pad is provided with a recessed portion in one side of a backing plate and a riveting projection on the other side of the backing plate and a wear limit warning piece for a lining secured to the one side of the backing plate is riveted to the projection. The projection is formed with a plurality of steps. The wear limit warning piece is secured to the backing plate with an uppermost projecting portion of the projection fitted in a hole formed in the wear limit warning piece.

Abstract: A disk brake of a floating caliper type having a disk rotating with a vehicle wheel, a caliper having a hydraulic cylinder mechanism, a support member secured to a stationary portion of a vehicle and a pair of friction pads mounted on the support member. The friction pads supported by the support member through wedge contact and resiliently urged by spring portions of pad clip members so that the friction pads are kept in surface contact with the support member at the time of non-braking. A sufficient area for transmitting the braking forces applied by the friction pads are stably maintained at the time of start of the braking, and the rotation moment on the pads are reduced and the braking forces are dispersedly transmitted to the disk run-in and run-out sides of the support member during the braking.

Abstract: A friction apparatus which includes a liner having a friction surface. The liner includes a fabric having fluorine fibers. The liner also comprising a resin.

Abstract: The present invention provides a friction pad assembly wherein an edge region of the backing plate has two recesses located symmetrically about a center line (11) of the assembly with a resilient leaf spring secured across each recess (13). In use, in a disc brake retaining pins engage against the springs to hold the assembly in position. This pad assembly design thus minimizes the required space by locating the resilient pad anti-rattle springs within the profile and sides of the backing plate, and by using the necessarily relatively short springs, the tendency for the springs (19) to be buckled or distorted, or affected by heat, is minimized.

Abstract: A disc brake pad in which the friction material is attached to the backing plate mechanically bonded with adhesives and through mechanical attachment to an expanded metal mesh utilizing uncompacted friction material and a compacted friction material preform.

Abstract: A brake shoe or pad in which the back plate is zinc plated and a friction material preform is bonded directly to the zinc plated surface.

Abstract: A multi-disc brake suitable for an aircraft has a stack of rotor and stator discs in which the discs of a set at one end of the stack each have a greater allowance for wear than the discs of a set at the other end of the stack whereby the group of discs are removed together from one end of the stack as a fully worn group at a brake servicing operation. An unworn group of discs is added to the other end of the stack.

Abstract: A projection for use as a restraining tooth in a compression-type belt restraint assembly which includes a base secured against movement and having a size and dimension appropriate for insertion of the projection in the interstices provided between the warp and weft of a woven fabric belt. The projection also includes a load-bearing surface, preferably an omnidirection load-bearing surface, projecting from the base at an angle from the perpendicular to the base so that a substantial component of the restraint force imparted by the surface on a fabric belt fiber under compression restraint is in the horizontal direction. Also the projection includes a nonabrasive top which terminates the omnidirectional surface so fibers comprising a fabric belt are not abraided or cut.

Abstract: Improved friction pads for use with disc brake. The pad has a central main portion and a peripheral portion which are formed of different matrices having different compositions. The matrix of the central main portion contains a hard substance or substances having a specified range of hardness whereas the matrix of the peripheral portion does not contain such hard substances or contains in only a limited smaller amount than the central main portion. This prevents the brake disc from wearing due to friction with the pad and thus avoids uneven abrasion of the brake disc.

Abstract: A bicycle brake shoe for making press contact with a bicycle wheel rim to apply a braking force thereto. The brake shoe includes a shoe body which is elongated in the rotation direction of the wheel rim and which has a braking surface opposite to the braked surface of the rim. The shoe body also includes at least one slit extending in a direction transverse to the longitudinal dimension of the braking surface and extending inwardly into the shoe body to a predetermined depth.

Abstract: A self-energizing disc brake shoe assembly for vehicles. It comprises a pair of relatively slidable and tapered blocks, each containing return springs surrounding rigid stems mounted in recesses of the blocks. One block serves as the backing plate and the other, as a self-energizing brake shoe. When the two blocks and a brake lining mounted on the brake shoe, engage the disc of a brake, the blocks move relatively apart longitudinally against a wedging action which affects progressive braking on the disc brake shoe. Upon release of the brake, the two blocks, by virtue of their return springs, will return to a neutral position, that is, with the blocks nested together.

Abstract: A riveted brake assembly comprising a friction pad attached to a metal support plate with rivets. Each rivet comprises a rivet head disposed in a counter bored friction pad hole, a shoulder portion disposed in and filling a small diameter portion of the friction pad hole, a shank portion of lesser diameter than the shoulder portion disposed in the support plate hole, and a tubular tip portion extending beyond said support plate and adapted to be rolled over to secure the friction pad to the support plate. In its preferred form, the rivet is an eyelet of substantially uniform wall thickness, wherein the length and diameter of the rivet shoulder are substantially the same as the length and diameter of the small diameter portion of the friction pad hole.

Abstract: An anti-squeal disc brake, having a disc rotor rotating with a wheel of a vehicle, a pair of friction pads each including a friction member and a backing plate secured to the friction member, an actuator device for forcing the pair of friction pads against opposite friction surfaces of the disc rotor, and a torque member which is secured to a fixed member of the vehicle and which supports the friction pads movably toward and away from the opposite friction surfaces of the rotor, the torque member receiving, through the backing plates, tangential forces which act on the friction pads during frictional contacts of the friction members with the friction surfaces of the rotor.

Abstract: At least one brake shoe (14) comprising a lining support member (16) and two lining sections (20) fastened one behind the other in circumferential direction to the support member (16) is arranged in a brake drum (10) which has a circular cylindrical internal braking surface (12). Each lining section (20) has an at least approximately circular cylindrical friction surface (22) the radius of curvature (R22) of which is smaller than the radius of curvature (R12) of the braking surface (12) and the center of curvature (M22) of which is located such that only a center portion of the friction surface (22) engages the braking surface (12) upon actuation of the brake.

Abstract: The invention relates to a friction pad for a disc brake and a disc brake assembly in which the friction pads are slidably supported by tabs extending radially outward of the friction pad backing plates on spaced axially extending, stepped edges of an aperture provided to the disc brake caliper. The friction pad tabs include support surfaces or shoulders which are non-symmetrical and permit the tabs to be assembled only when properly oriented.

Abstract: The friction pad assembly of the present invention has a generally rectangular back plate with two retaining tabs projecting from opposite side edge regions, at an angle to the general plane of the back plate. The support or shoe is also generally rectangular and has a recess formed in each of two opposing side edges, the retaining tabs on the back plate engaging snugly into these recesses. The support has a further H-shaped recess in its front face within which an elongate spring plate is secured so as to project beyond opposing ends of said support. Thus, in use, the friction pad assembly can be quickly and simply mounted on the support and when the brake is operated the end region of the spring plate through which pad drag is passed to pad guides, flexes to thus allow for unhindered axial movement of the friction pad assembly and support.

Abstract: A cantilever brake is provided at the upper portion of each brake shoe with a swollen portion swollen slantwise or obliquely upwardly and away from the upper edge of the braking surface of the break shoe toward a shoe holder holding the brake shoe, to thereby prevent reduction in the braking surface caused by wearing of the brake shoe.

Abstract: A disk brake in which the brake is assembled with the thickness of the available wear portions of a first group of disks being different from the thickness of the available wear portions of a second group of disks. After a predetermined number of brake applications, the first group of disks is replaced by a third group of disks. At the time of replacement, the thickness of the available wear portions of the third group of disks is greater than the thickness of the available wear portions of the second group of disks so that after another predetermined number of brake applications the second group of disks may be replaced by another group of disks. By maintaining disks of different thicknesses of the available wear portions, the piston travel is reduced and the size and weight of the brake may be reduced while at the same time the heat sink mass of the worn disks is not reduced excessively and worn brake operating temperatures are lowered.

Abstract: A drum brake assembly with the brake shoe lining friction surface subtending over a total effective friction surface arc length between the shoe heel and toe ends of about 49.degree. on the first or primary shoe, symmetrical about the shoe horizontal center line, and about 57.degree. on the second or secondary shoe, similarly symmetrical. The first or primary shoe may have about the same friction surface arc length as the second or secondary shoe in some instances, each then preferably being about 50% of the friction surface arc length of the prior art typical secondary shoe lining of about 117.degree.. Different methods of reducing the effective friction surface arc lengths are disclosed, as well as the effect on brake effectiveness variations the invention has on brake assemblies, both with the same lining material composition and different lining material compositions.

Abstract: A disk brake arrangement for a motor vehicle includes a metal backing plate shaped so as to have at each end thereof, a recessed portion. The support, rigidly attached to the motor vehicle, includes peripheral wall portions shaped to fit within a corresponding receased portion of the pad assembly. The cooperation of these portions prevents a rotation of the pad assembly during braking.

Abstract: A railway brake shoe adapted to be mounted on a standard brake head and having a wheel engaging surface with portions having a plurality of radii for matching rail wheels of different diameters. The portion having the smallest radius extends along the entire wheel engaging surface such that during braking the relationship between the brake head and shoe is such that the shoe will not vibrate.

Abstract: A drum brake assembly is described to comprise a dual drum brake housing mounted to a vehicle wheel or shaft to be rotated therewith. The dual drum brake housing has two axially extending, concentric, radially spaced drum surfaces defining an annular channel between them. A torque member is fixed against rotation with the vehicle wheel and an expandable friction lining assembly is mounted to the torque member. The friction lining assembly is positioned within the annular channel and carries radially outward and radially inward facing friction linings. Upon expansion of the friction lining assembly each of the friction linings is moved into contact with the corresponding drum surface, thereby transferring braking force to the wheel.

Abstract: A brake lining carrier particularly for disk brakes having divided lining elements has a base plate on which is positioned an intermediate plate to support a carrier plate upon which is attached the friction lining. The intermediate plate has a number of indentations which form bulges. Bulges result in a certain degree of elasticity which provides a mobile elastic mounting support for the friction lining which may be made of sintered metal. The result is virtually noiseless braking with uniform surface application and without the generation of "hot spots".

Abstract: The invention concerns a pad and torque support assembly for a disc brake. The pad incorporates a first pair of twin surfaces (54) formed on the torque support (10) and a second pair of surfaces for anchoring and for sliding (56) radially offset from the first pair and cooperating with a second pair of twin surfaces (58) formed in the torque support, allowing a circumferential offset between two pads of the same brake.