Abstract: Disc brake comprising a caliper with two elements (8, 21) positioned on opposite sides with respect to a disc (D) integral with the hub of a wheel and each associated to a corresponding floating pad (19, 19) of friction material which faces a corresponding side of the disc (D). The orientation of the two pads being adjustable separately.

Abstract: A hydraulic caliper disk brake (10) according to the present invention includes a caliper base (46) that is supported by a folding triangular base (14) that generally includes a mounting base (30) and a support arm (54). The caliper base (46) is pinned to the mounting base (30) and the support arm (54) such that the caliper base (46) may pivot about the mounting base (30) when the pin connecting the support arm (54) to the mounting base is removed. The configuration allows the caliper assembly (12) to be pivoted out, away from a brake disk (16) such that the friction pads (142, 242) may be easily replaced. The caliper assembly (12) includes a self-activating wear adjuster (172) that functions to maintain a constant brake gap (174) between an active friction pad (142) and the brake disk (16). The caliper assembly (12) also includes a wear indicator in the form of a spring (134) that provides additional force that is fed back to the user when the friction pad (142) is significantly worn.

Abstract: A drum brake device having a single brake shoe mounted to be movable on top of the back plate. One end of the brake shoe abuts against an anchor (10) and the other end interlocks with a shoe clearance adjustment device (14). A link (11) is supported so as to pivot in the central region of the brake shoe (3). One end of the link (11) is interlocked so as to be activated by a service brake actuator (12) itself activated when the service brake is applied, while the other end of the link (11) abuts against the anchor (10). When the brake drum is rotating in one direction, the other end of the brake shoe (3) is supported by the anchor (10), and when the brake drum is rotating in the reverse direction, the one end of the brake shoe (3) is supported by the shoe clearance adjustment device (14).

Abstract: An adjusting device of brake rods for bicycles includes a connector, two rods and two receivers. The two rods each has first and second ends, the first end thereof rotatably engaged to the connector and the second end thereof having a threaded portion for engaged to the receiver which is pivotally engaged to a brake arm. A user adjusts the rod by rotating the rod corresponding to the receiver.

Abstract: A hanging apparatus for brake cord of a bicycle. The brake cord is securely connected with the hanging apparatus and two hanging cords are connected between the hanging apparatus and two brake blocks. The brake cord is able to pull the hanging apparatus to synchronously pull the hanging cords so as to drive the brake blocks for braking. The hanging apparatus includes two circular metal plates, a seat member receiving the metal plates and a cover member overlaid on the seat member to clamp the metal plates and two hanging heads of the hanging cords. A stepped bolt is passed through the seat member, the metal plates and the cover member to be tightened by a nut for pulling the brake cord. The seat member and cover member are engaged with each other to compress a circular socket defined by the metal plates and bind the brake cord therein without loosening therefrom.

Abstract: An adjusting device for a brake cable of a bicycle includes an adjusting element with a threaded hole defined in an end thereof, a first cable and a second cable. The first cable has a first end pivotally engaged to a connector and a second end with a head part which is rotatably engaged to the other end of the adjusting element. The second cable has a first end with a threaded portion which is engaged to the adjusting element by threading to a threaded hole defined therein and a second end, has a head part which is pivotally engaged to one end of a brake arm. The second cable is adjusted by rotating the adjusting element.

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 drum brake assembly including a brake member comprised of a substantially circular shoe having a radially outer face on which at least one lining is mounted. The shoe is made from a high strength resilient material and is of substantially constant cross-section along its entire length. The brake member is arranged to be diametrically expanded by an actuation device on the brake assembly. When the actuation device is released the resilience of the shoe material causes the shoe to diametrically contract. The lining may be machined to a circular form prior to the brake member being fitted to the brake assembly, and that machining is preferably done after the shoe has been expanded a predetermined extent. The disclosure extends to a method of manufacturing a brake member and to a brake member for a drum brake assembly.

Abstract: A brake force adjuster for a vehicle brake especially for a bicycle brake includes a hanger holding a hanging wire secured with a pair of brake shoes for operatively clamping a wheel rim of a vehicle wheel for braking purpose, an adjustable locking latch resiliently tensioned on the hanger normally frictionally locking a braking wire remotely connected to a brake lever to be operated by a vehicle driver, and a locking bolt locking the braking wire on the hanger. When unlocking the locking bolt and pulling the adjustable locking latch, the hanger may be freely moved along the braking wire for adjusting a clamping force of the braking shoes. After releasing the locking latch, the locking latch will resiliently frictionally lock the braking wire which is then firmly locked by the locking bolt also formed on the hanger. Therefore a brake force adjuster of a vehicle brake can be easily assembled and adjusted.

Abstract: A brake adjustment mechanism is provided for a bicycle wheel to allow cantilevered bicycle brakes to be adjusted quickly and easily and without the application of the brakes to the bicycle wheel. The brake adjustment mechanism employs a cable yoke which has a body adapted for connection to the flexible brake cable of a conventional cantilevered bicycle brake. The yoke has a pair of projecting supports that extend outwardly from opposite sides of a yoke body and toward opposite sides of the bicycle wheel. A separate socket is carried by each of the projecting supports. The sockets are movable in rotation relative to the yoke and each socket has a tapped opening facing a separate one of the bicycle brake lever arms. A pair of elongated rigid rods are each secured at one end to separate ones of the bicycle brake lever arms. Both of the elongated rods have externally threaded ends which are threadably engaged in separate ones of the tapped openings of the sockets.

Abstract: A roller skate brake in which the wheel support which rotatably couples the skate's wheels to the boot is slotted, allowing the support to flex when the skater bears down with the heel. Such flexing compresses the support, forcing a brake shoe against the skate's rear wheel. The braking force varies in proportion to the applied force, and is released when the skater stops bearing down. A roller skate starter aids initial propulsion of a roller skate's wheels. The starter incorporates a restraining mechanism which prevents reverse rotation of the skate's toe wheel, while allowing forward rotation thereof.

Abstract: An adjusting device is disclosed for the brake shoes of inside shoe brakes. The adjusting device includes two levers which are articulated on a carrier at a lateral distance from one another. The levers each engage on one of two adjacent brake shoe ends and are jointly in engagement with a frustoconical endpiece of an actuating member guided rotatably on the carrier in a threaded bore provided between the levers and extending in parallel with a brake drum axis. During the rotation of the actuating member for the adjustment of the brake shoes, the two levers are pivoted in directions opposite to one another, being supported respectively on one of two mutually opposite edges of the brake-shoe webs so as to surround these. The adjusting device is merely attached by its levers on to the brake shoe webs so it can also execute self-reinforcing floating movements of the brake shoes in dual servo-brakes.

Abstract: A cover to enclose the adjustment screw or nut as well as to cover the locking sleeve of a brake slack adjuster. The cover is held in place by an elastic band which extends horizontally around the brake slack adjuster and has enlargements that engage the cover and hold it firmly in place against the slack adjuster. The cover is easily removable when it is desired to make adjustments, yet it fully protects the slack adjuster from unwanted elements.

Abstract: Improvements are disclosed to conventional brake slack adjuster mechanisms of the type which are employed upon heavy equipment such as dump trucks and the like which mechanisms are anchored to the axle of the truck and utilize a worm drive and spline arrangement within an adjuster housing to drive a spline shaft interconnected to the brake assembly to adjust the brakes. The worm drive is driven by a worm drive adjusting bolt which has an adjusting bolt head which interreacts with a spring loaded adjusting bolt head socket lock which may be forced out of disenagagement with the adjusting bolt head to permit adjusting of the brakes by the worm-spline drive arrangement and which adjusting bolt head socket lock upon release engages the adjusting bolt head to lock the adjusting bolt head against misadjustment.

Abstract: A frictional disk-type side brake is disposed within a space around a clutch housing (3) of a side clutch (2). The brake comprises a disk member (4), supported by the clutch housing, and two sets of separate frictional plate members (5A, 5B) supported by a transmission casing (1). The two sets of plate members are particularly disposed such that the disk member is faced, at its angularly spaced two parts, to the two sets of plate members. An adjustable reaction member (8) is provided against which the disk and plate members are pressed so as to actuate the brake. The disk member is prevented, when the brake is actuated, from taking an inclined posture so that a high efficiency and durability of the brake are attained, while a compactness of the brake is assured.

Abstract: A disk brake assembly wherein the floating caliper member houses an adjustable nut in which is mounted a power screw for actuating the carrier members and their brake pads into frictional engagement with a rotatable disk. The power screw has a cam connected to it, with the cam also adjustable mounted on an actuating lever to permit selected rotation of the cam to adjust the axial position of the power screw to compensate for wear.

Abstract: A disc brake caliper is provided which has a parking brake. A dual lever parking brake apply assembly is also included which allows adjustment of the parking brake without modification of the parking brake cable. The adjustment is made by changing the relative position of the levers with one another.

Abstract: A brake shoe adjustment device for internally mounted shoe brakes is arranged between mutually neighboring ends of two brake shoes which are connected to each other via a tension spring. To minimize parts, size and cost the adjustment device has two mutually opposite spreading elements, each of which is held by one brake shoe end. One of the elements is equipped with a threaded shank that cooperates with a threaded bore of the other element. The elements are axially displaceable by a worm wheel gear which rotates the shank in response to turning by an adjusting tool.

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: The present invention provides an adjustable shoe mounting structure for a bicycle brake assembly. The mounting structure includes a support bolt inserted into a reception bore of each brake arm and having one projecting end screwed to a nut. The support bolt further has a head formed with a cross bore extending transversely of the bolt. Each brake shoe has a mounting pin inserted into the cross bore of the bolt. A pin retainer is fitted on the bolt head, and has a pair of pin retaining holes for press-fitting engagement with the mounting pin to restrain the movement thereof relative to the cross bore upon loosening of the nut.

Abstract: A cable length adjuster with push and lock attachment for attaching and adjusting the length of a cable with respect to a support member. The cable length adjuster includes a stud having an externally threaded end portion and an intermediate boss formed with a polygonal-shaped exterior surface having a plurality of flat faces. A sleeve has a complimentarily shaped, polygonal cross section bore and is non-rotatably engageable with the boss on the stud. A nut is threadingly connected to the threads on the stud. The nut has a polygonal exterior shape to slidingly and non-rotatably support the sleeve. A spring is mounted between the nut and the sleeve to bias the sleeve into engagement with the boss on the stud. The cable is connected to the nut. Retraction of the sleeve from engagement with the boss on the stud enables the sleeve and the nut to be rotated thereby varying the overall length of the nut and stud through the threaded engagement of the nut with the stud.

Abstract: An automatic adjuster releasing apparatus characterized by the provision of a support member fixedly mounted on the wheel cylinder body; pin member slidably supported by the support member and having one end portion extending from an opening formed on the backing plate, the other end of the pin member facing an inner surface of the adjuster lever so as to be engageable therewith, so that when the other end of the pin member is pressed against the inner surface of the adjuster lever, the pin member releases the engagement of the other end of the adjuster lever with the adjuster gear; a resilient member urging the one end portion of the pin member to be projected from the opening on the backing plate; and a flexible cover fitted in the opening and covering the one end portion of the pin member.

Abstract: A handbrake compensator for a motor vehicle includes a support having a tubular body receiving a spring and two opposing flanges. The support is connected to a load distributor element which transmits load from a primary cable to a secondary cable connected to a wheel. The load distributor element has two opposing wings provided with elongated slots which receive a cap screw which connects the load distributor element to the support. One of the slots has toothed edges so that the screw can be moved axially of the support to adjust the position of the load distributor element relative to the spring to thereby adjust tension of the cables.

Abstract: An automatic adjuster for the operation gap of a brake, comprising a piston slidably fitted in a cylinder, an adjusting nut supported in contact with the outer end of the piston the adjusting nut being rotatable relative to the piston, an unrotatable adjusting screw supporting a brake friction member at the outer end of the screw and engaged with the internal thread of the nut at the external thread to form a non-reversible screw-thread connection, the adjusting screw and the adjusting nut cannot rotate relative to each other by any force acting to the non-reversible screw-thread connection in the axial direction thereof, a drive screw connected to the cylinder through a friction clutch and engaged with the external thread of the nut at the internal thread to form a reversible screw-thread connection which has a backlash corresponding to the operation gap, the drive screw and the adjusting nut can rotate relative to each other by a force acting to the reversible screw-thread connection in the axial direction

Abstract: A side-pull type caliper brake comprising a pair of brake arms having brake shoes respectively, a fixing member having a pivot shaft and a support arm extending from one radial side of the pivot shaft, and a return spring, so that one of the brake arms is pivoted to the pivot shaft, the other is pivoted to the support arm, and an association mechanism having an adjusting screw bolt is provided between the brake arms, wherein the pivot position for the brake arm at the support arm is displaced toward the brake shoe with respect to a horizontal line passing the axis of the pivot shaft, a straight line connecting the axis of the pivot shaft and the pivot position of the brake arm at the support arm, is inclined with respect to the horizontal line, the adjusting screw bolt is disposed perpendicularly with respect to the inclining horizontal line, and the rotary operating portion at the adjusting screw bolt is outwardly inclined with respect to the utmost end of the screw bolt, thereby facilitating operation of th

Abstract: The present invention relates to a quick adjusting device for bicycle cables, and especially to a device having a substantially S-shaped base which cooperates with a cam, a worm and a worm gear to adjust a bicycle brake cable. Two plates formed on the bottom of the base to define an area. A wheel is slidably mounted on the cam. The worm gear and the wheel, together, clamp the brake cable. The brake cable is driven and adjusted by the worm gear and the wheel by inserting a hexagon wrench into a hexagonal slotted head of the worm and turning. A pulley is rotatably received in an area of the base for adjusting the relative position of the left side and the right side brake arms.

Abstract: A disc brake includes two pad supporting levers which are pivotally mounted on a single pivot. One of the levers has a first adjustment bolt which abuts the other lever to control the maximum clearance between the pads and a second which abuts the bracket on which the levers are pivotally mounted to control the clearance between one of the pads and the rotatable disc. A linkage which interconnects the levers induces same to rotate and clamp the pads against the rotatable disc by (a) a foot pedal controlled hydraulic servo integrated with the bracket and/or (b) a cable arrangement operatively connected with a hand brake.

Abstract: A simple hand tool is provided for clamp engagement with the "pig tail" terminal end of a bicycle hand brake cable assembly core, and an abutment is threadably supported from the tool for infinite adjustment relative thereto and is operable to engage and to displace the caliper brake arm usually clamp engaged with the cable core toward the brake arm from which the housing of the brake cable assembly is stationarily supported.

Abstract: A device for holding a brake outer wire comprising a hollow screw tube for holding one end of the outer wire as inserted therein, a wire adjusting nut having the screw tube screwed therein, a holder main body mounted on an arm extending from a small brake arch and rotatably supporting the adjusting nut thereon, a rotatable knob portion provided at one end of the adjusting nut and having a recess in one side thereof opposed to the holder main body, a ring fitted in the recess nonrotatably relative to the knob portion and a wavy washer provided in the recess for biasing the ring toward the holder main body. One of the holder main body and the ring has a rugged surface opposed to the other, and the other of the main body and the ring has projections engageable with the rugged surface with a click when the adjusting nut is rotated.

Abstract: A hand brake apparatus for installation on wheeled trucks of the type having a load supporting frame and at least two laterally opposed support wheels having a fixed direction supporting the frame for movement over the ground and a handle portion for moving and directing the load supporting frame. One embodiment of the apparatus comprises a singular tubular housing attached to the load supporting frame horizontally between and parallel to the rotational axis of two laterally opposed support wheels having a fixed direction. A pair of opposed extensible wheel engaging members carried within the housing extend outwardly from each end thereof and are provided with a resilient brake disc to engage the sidewall of the stationarily mounted support wheels and thereby prevent rotation of the wheels. A compression spring maintains the extensible wheel engaging members in a normally retracted position spaced inwardly adjacent the wheel sidewall.

Abstract: A portable slack adjuster lock in the form of a C-shaped spring metal clamp. The lock clips over the adjusting nut of the internal worm shaft of a slack adjuster, and stops the adjusting nut from turning to prevent loosening of the slack adjuster during normal usage. A hexagonal hole in punched in the slack adjuster lock for fitting over and locking the adjusting nut, and the lock is made preferably from banding steel or plastic.

Abstract: A wheel disc brake system for a motor vehicle connected to a brake fluid pressure system that includes a pressure relief apparatus for moving the inner piston of the wheel brake back into the brake housing piston chamber by an Allen wrench insert into an axial tool hole at the front face of the inner piston accessed through the axial oil hole of the outer piston. Rotation of the wrench rotates the inner piston along the actuating screw member in the brake housing and so moves the inner piston away from the outer piston so that the outer piston can be easily pushed into the brake housing and new brake pads mounted to the calipers. Reverse rotation of the wrench pulls the inner and outer pistons back into operational position. The invention also includes a cylindrical nose extending from the inner piston having at least one seal to defend the tapered actuating areas of the inner and outer pistons from contamination through the oil hole of the outer piston.

Abstract: The rotating member (17) of the automatic adjustment device interacts in frictional engagement with a non-rotating plunger (8) of the mechanical control device (9), the adjustment member locked in rotation (18) of the automatic adjustment device having an end (19) passing sealingly and slideably through the front wall (4) of the brake piston (1) and maneuverable (38) manually to carry out resetting of the automatic adjustment device, the adjustment member locked in rotation (18) being pushed in frictional connection (30, 31) with the brake piston (1) to be normally locked in rotation when the brake motor is in operation.

Abstract: The brake motor comprises an inserted piston (26) slideably mounted in a passage (24) formed in the front wall (4) of the brake piston (1) which has, near the other end (31) of the inserted piston (26), a counter-bearing surface (34) facing inward, thus enabling the engagement of an actuating tool (0) to exert, via the inserted piston (26), an axial thrust on the rotating member (16) of the automatic adjustment device of the brake motor and, at the same tine, an axial load in the opposite direction on the brake piston (1) enabling the friction clutch (18, 19) to release between the brake piston (1) and the rotating member (16), after which an axial translation (F) of the assembly enables the resetting of the automatic adjustment device of the brake motor.

Abstract: The invention concerns a brake actuator with automatic adjustment incorporating a screw and nut actuator mechanism (32, 34) whose elongation is controlled by a screw and nut device with reversible pitch (44) and a unidirectional clutch (56) sensitive to the relative movement between the fixed body (20) and a control piston (24). The brake actuator incorporates an automatic device (68) momentarily disengaging the actuator mechanism (32, 34) when the rotational torque of the nut (32) becomes too great. The brake actuator also incorporates a manual device for resetting the automatic adjustment to zero.

Abstract: Adjusting mechanism is provided for the brakes of a highway trailer. A brake lever is actuated by a pneumatic cylinder and carries a worm gear which is mounted for turning with the lever, and also independently of the lever. The worm gear is splined for non-rotatable reception of a brake shaft. A saddle pinned to the lever carries a tapered worm which meshes with the worm gear. The worm gear is axially split, and the two halves thereof are forced axially away from one another by the worm under load into engagement with surfaces fixed relative to the lever for frictionally fixing said gear relative to said lever. The tapered worm also wedges the periphery of the gear into frictional engagement with a surrounding part of the lever. The worm is turnable to adjust the rotational position of the gear and hence of the brake shaft when not under load, and the worm is lockable in adjusted position.

Abstract: The invention concerns a disc brake with a caliper (10) sliding on a fixed support (12) incorporating a first friction component (14) which is capable of being applied against a surface of a brake disc by way of a brake actuator through a plunger (28). A second friction component is capable of being applied against the other surface of the disc through the sliding caliper. Rotation of the plunger (28) is capable of causing the latter to move axially relative to the brake actuator. The disc brake incorporates an adjusting and retaining component (44) having a fork (40) at one of its ends (42) which is intended to cooperate with complementary surfaces (38) formed on the plunger (28) and having a hole (48) at its other end (46) by way of which the component (44) is immobilized, through a screw (50), relative to the first friction component (14).

Abstract: A self-energizing disc brake of the spreading type incorporates a drag-taking stop abutment for arresting angular movement of one of the pressure plates when the brake is applied. The stop abutment comprises a cam which is mounted on the inner end of a cam shaft, and the cam shaft is rotatable in a radial bore in the housing to adjust the relative circumferential position of the stop abutment.

Abstract: A brake caliper is provided for applying a braking force to a wheel, rotor, disc, or the like. The caliper includes a brake actuator, an actuator housing, a bearing for rotatably and slideably receiving the brake actuator in the actuator housing, and a ramp for displacing the brake actuator in an axial direction in relation to the actuator housing between an inactive position and a brake-actuating position in response to rotation of the brake actuator. At least one braking pad is actuable to apply a braking force in response to predetermined axial displacement of the brake actuator. The ramp includes at least one contoured camming surface inclined in a counterclockwise direction and at least one contoured camming surface inclined in a clockwise direction. Axial displacement of the brake actuator is accomplished by camming engagement between the brake actuator and one of the contoured camming surfaces formed in the ramp block.

Abstract: A slack adjuster for use in a transportation environment has a body which has a lever arm formed at one end thereof. There is a crosshole or passage in the body and a worm gear wheel is positioned in the passage for mounting on a brake operating shaft. There is a slot formed in the body and opening into the passage. The slot has three mutually perpendicular surfaces and is of a size and shape to hold a worm gear and to provide for threaded engagement of the worm gear and the worm gear wheel. There is a bore in the body which is generally perpendicular to one of the slot's mutually perpendicular surfaces. A shaft is positioned in the bore and coaxially mounts the worm gear for adjustment thereof. The bore is oversized relative to the shaft, thereby providing no bearing support therefor.

Abstract: A chain saw safety-brake system including a pivotable member, and a screw located in side-by-side relation to the pivotable member and having a brake band connected thereto at one end. The screw can be operated from outside of the chain saw to adjust the length of the brake band. The pivotable member and the screw are assembled with a lock lever for locking a clutch drum and contained in a casing to provide a packaged unit.

Abstract: An automatic adjusting device for motor vehicle brakes includes a brake lever comprising a housing portion in which an adjusting gear comprising a worm and a worm wheel is located. The housing portion is connected through a clutch having frontal teeth and a drive member, with a lever having one end portion projecting into the housing portion and connected with a stationary part of the vehicle. The end portion of the lever projecting into the housing is provided with a stop that engages a recess provided in the housing portion. The cooperation between the recess and the stop limits the stroke of the brake lever.

Abstract: Disclosed is an integral braking device for braking a live tool or spindle in a spinwelding machine. The device comprises a cam-activated, spring-loaded brake adapted to bear against a wear resistant braking surface. The brake is both adjustable and self-adjusting and will not interfere with the free rotation of the spindles when not actuated by the cam.

Abstract: An actuator assembly incorporates a strut assembly of which the effective length is adjustable to compensate for wear of a friction lining and through which a brake-applying force is transmitted to a braking member, and an adjuster mechanism arranged in parallel with the strut assembly. The adjuster mechanism is arranged in parallel with the strut assembly and incorporates a spring in which energy is adapted to be stored. The mechanism is adapted to receive a signal dependent upon movement of the strut assembly in a brake-applying direction, and is also adapted to apply an adjusting force to the strut assembly in response to energy released from the spring when the brake is itself released.

Abstract: An operation device of a clutch master cylinder including a clutch master cylinder slidably incorporating therein a piston and a clutch lever pivotally supported by a pivot on a lever holder and having a piston operating arm. The clutch lever has a bearing hole formed substantially parallel to the pivot and a rotor is turnably fitted into the bearing hole. A push rod which comes into contact with the piston so as to be able to rock is interconnected to the rotor. To adjust the play stroke of the clutch lever, the length of the push rod is adjustable in one embodiment of the invention. In another embodiment, the pivot is fitted to a shaft hole of the clutch lever and the axis of the pivot is eccentrically disposed with respect to the center of the shaft hole.

Abstract: A slack adjuster is for a disc brake of the type which includes a disc mounted for rotation about an axle and a caliper brake having a housing mounted on the axle in alignment with a friction surface of the disc. A braking piston is mounted in the housing for axial movement toward and away from the friction surface of the disc. Brake actuation produces rotating movement of a powershaft mounted in the housing which will in turn produce a corresponding axial movement of the braking piston through a non-rotating powershaft nut. An adjusting sleeve is between the piston and the powershaft nut and is threadably coupled to the piston and capable of rotation relative thereto to adjust the axial position of the piston. The adjusting sleeve is capable of rotating in a direction which will cause the piston to be adjusted toward the disc and is prevented from rotating in the opposite direction by a one-way clutch shaft between the adjusting sleeve and the housing.

Abstract: A strong and lightweight adjustable slack adjuster is disclosed. The slack adjuster body portion includes, in one form thereof, an integral and a removable cover plate. In another form a pair of removable side cover plates are provided and are fixed to the slack body by deformation of a body rim over the cover plate edge. Other cover plate forms are deformable or resilient and include peripheral skirts which are expandable radially outwardly to fit within an annular groove in the body portion. Meshing worm gear and worm wheel means, which can be rotatably adjusted with respect to each other to thereby adjust the slack in a braking system, are positioned within the body. The worm wheel is supported by the body around its entire periphery to maximize the load carrying capacity of the slack while minimizing wear. The major portion of the worm gear is also supported by the body. Sealing means are positioned between the worm wheel and the cover plates to seal the worm gear and worm wheel from contaminants.

Abstract: A system for braking axle-attached wheels of a tractor trailer and the like includes first and second arrays of discs symmetrically opposed about the centerline of a tubular axle containing the arrays of discs; symmetrical also in each array of discs is a first plurality of discs slidably attached to the axle and a second plurality of discs slidably attached to the housing; the axle comprises a stub axle at each end protruding from the housing in position for mounting a wheel or wheels; in braking, a two-lobe, cam-actuated system simultaneously compresses the respective arrays of discs in directions opposite each other for frictional retardation of the axle; bearings carry the axles; the cam actuated system includes a spreader plate driving a pressure plate on each side of centerline.

Abstract: A caliper brake apparatus of the side-pull type having a center adjusting device comprising a fixed member fixedly mounted on a center rod and a turnable member rotatably mounted on the center rod. The turnable member holds a brake spring for the brake apparatus and has a pair of projections extending diametrically outwardly of the rod. The fixed member is provided with an axially movable screw member having a forward end in contact with one of the projections and has a spring member in bearing contact with the other projection for biasing the turnable member to hold the above-mentioned one projection in contact with the forward end of the screw member at all times.

Abstract: The invention is directed to a power chain saw incorporating a braking device having a release handle. The chain saw includes a carrying handle spaced a distance from the release handle. At least one of the handles is made of a plastically deformable material and can be deformed so as to cause the spacing between the handles to be adjusted within predetermined limits.