Abstract: An incremental braking method and system in which a braked member which is in motion, e.g., a brake drum, is engaged by a series of flexible stops on a braking member, e.g., a brake shoe, to brake the braked member. A rigid stop on the braked member sweeps past the flexible stops on the braking member to cause vibrations. The vibrations are damped as the flexible stops engage the braked member, thereby inhibiting the motion of the braked member. The flexible stops are of unequal lengths and are provided on springs which allow them to retract into the braking member. In this way, the stops incrementally engage the braked member for smoother and more efficient braking.

Abstract: A braking component such as a brake pad, brake rotor, brake drum or clutch disk is comprised of a metal substrate having a friction material laminated on at least a portion of at least one face of the metal substrate, the friction material being a ceramic-metal composite comprised of a metal phase and a ceramic phase dispersed within each other, wherein the ceramic phase is present in an amount of at least about 20% by volume of the ceramic-metal composite. In particular, the braking component is a metal substrate, such as aluminum, having laminated thereto a ceramic-metal composite of a dense boron carbide-aluminum composite having high specific heat and low density.

Abstract: The invention concerns an improved device in pallet loaders, comprising an upright frame (1) and a pair of horizontal lifting fork members (2) which may be raised and lowered together with said frame (1) by means of a lifting mechanism. The lifting fork members (2) are equipped at their outermost end with one support wheel (4) each, which wheels are attached to an articulated arm (14) arranged to be pivoted downwards. The frame (1) and the lifting fork members (2) may be raised and lowered by means of a rack (6) which is connected via a cable, wire on chain (10) to an articulated, two-armed rocker arm (13). In turn, the latter is connected to the articulated arm (14) by means of a traction rod (15) which is associated with the arm (14). Upon upwards motion of the rack (6) and thus of the frame (1) a pulling force on the cable (10) will be transferred via the rocker arm (13) and the traction rod (15) to the articulated arm (14), which then swings downwards, thus raising the lifting fork members (2).

Abstract: The invention is related to a brake shoe with a chamfered edge lining, the chamfered edge achieving desired surface configuration of the lining after only a few braking actions while increasing the service life of the lining. The chamfer has a profile shape which features a hyperbolic contour, steeply angled at the top adjacent the outer face and very shallowly angled at the bottom adjacent the backing plate so that the increment of wear of each braking operation decreases in a strongly degressive way.

Abstract: A force application system for a disc brake assembly in which twin pistons engage a configured load plate featuring stiffening ribs at specific locations to maximize the stiffness thereof seeking to provide uniformity of pressure transmitted therethrough to a friction pad. Additional uniformity of pressure is achieved by forming recesses in the backing plate of the friction pad proximate regions of pressure peaks. A singular recess at the point of pressure peak or recesses defined in a pattern identified by infinite element analysis may be utilized to optimize uniformity of pressure distribution.

Abstract: A disc brake shoe in which a relatively thin gage, low-cost metal backing plate has bonded to one face a friction brake lining and is formed on the opposite face with a plurality of straps that are adapted to engage corresponding recesses formed in a complementary thick gage metal backing plate to interlock the respective backing plates into a unitary brake shoe assembly which can be easily disassembled to permit change-out of a worn brake shoe by simply substituting a newly lined, low cost backing plate for the existing backing plate having worn lining without the need to re-claim the backing plate for re-use.

Abstract: An improved hardened insert and brake shoe adapted for use in bi-directional backstopping clutches is disclosed. The inserts are formed from a base material of high speed alloy tool steel, which is relatively inexpensive and easy to machine. The base material is formed into the desired shape for the insert, then hardened and tempered by conventional processes to achieve a desired hardness. Then, a coating of titanium nitride is applied to the insert by a physical vapor deposition process or a chemical vapor deposition process. The titanium nitride coating provides a very hard surface to the insert, which permits the insert to be used in the backstopping clutch. In an alternative embodiment, the brake shoes are formed in the manner described above, and no inserts are used in the clutch.

Abstract: A piston rod-free pressure cylinder, in which a force reducer (15) is connected by means of a lateral projection (14) to the working piston (13), has a brake mechanism (19), which acts with a brake lining (27) on the outside of the pressure cylinder (11). Action takes place in such a way that no transverse forces are exerted on the projection (14).

Abstract: The invention relates to a brake disc or brake drum or else the combination of both. The brake discs are provided with rotationally symmetrical braking areas and a removable, anti-corrosive coating. The coating completely covers the surface of the brake disc. Between the coating and the braking area there is applied a peelable, adhesive piece which is cut to size from a sheet material and completely covers the braking area.

Abstract: A brake shoe mounting assembly is provided for a brake mechanism mounted within an axle housing located on the inboard side of a wheel mechanism and having an arcuate brake drum assembly mounted therein. The mounting assembly includes an arcuate brake shoe disposed in the housing for confronting the brake drum assembly and an actuator apparatus mounted in the housing and being engageable with the brake shoe and responsive to engagement of the brake pedal for expanding the brake shoe into frictional engagement with the brake drum. The actuator and the brake shoe are interconnected for sliding and in particular, a slotted beam assembly is attached to either one of the actuator and the brake shoe and an insertion assembly is attached to the other. The slotted assembly extends in an inboard direction and slidably receives the insertion assembly.

Abstract: A spot-type disc brake with a floating-caliper comprises a brake support member and a brake caliper that is arranged at the wheel axle in a manner slidable parallel to the brake disc axis by a single guide element (5,6) includes brake shoes which are replaceable tangentially relative to the brake disc. The brake support member is constructed in the shape of a retaining element which is arranged on one side of the brake disc parallel to the disc and which may be constructed integrally with the wheel axle. The brake shoes are retained either on the disc entry side in the brake caliper (2) or on the disc exit side at the brake support member (1) or in the brake caliper by retaining elements. On the side opposite to the retaining elements, i.e. on the disc entry side or on the disc exit side, the brake shoes are supported in the brake caliper.

Abstract: A brake member integrally cast from a single melt and composed of a sliding portion and a hub portion, the sliding portion having a flaky graphite cast iron microstructure with a good damping capacity and the hub portion having a high-strength cast iron microstructure. The sliding portion which may be a drum or a rotor has a damping capacity Q.sup.-1 of higher than 16.times.10.sup.-3. It is manufactured by pouring a melt having a hyper-eutectic flaky graphite cast iron composition into a cavity of a sand mold in which a chiller is embedded adjacent to a cavity region for the hub portion.

Abstract: A leaf spring (76) for holding down the pad backplate (72) and the pressure distributor plate, if any, in the pad opening of a disc brake at one side rests on a movable frame (12) of the brake and at the other side pressurizes the lining backplate and the pressure distributor plate, if any. The leaf spring (76) is designed such that, in relaxed condition, it has an arched center portion (106) which is followed at either end by an at least approximately straight side portion (108,108') the end portions (84,84') of which are fixed at the lining backplate and pressure distributor plate, respectively, in the direction of extension of the leaf spring. This is to assure reliable hold-down even at great accelerations in spite of the fact that the brake linings remain easy to be applied and released. Such a leaf spring provides a favorable hold-down characteristic for the lining backplate and the pressure distributor plate without impeding the venting of the brake.

Abstract: A disc brake unit comprises a disc assembly of interleaved rotor discs and stator discs that are normally spring in one direction biased to a brake engaged condition. A hydraulically operated first piston engages a stator disc at one end of the unit to move it axially in opposition to the spring bias to release the pressure between the discs and thus release the brake. A non-rotatable stop adapted to contact only one intermediate stator disc is provided to prevent movement of the intermediate disc in a direction opposite to the one direction. A second piston engages a stator disc at the opposite end of the unit for moving the rotor and stator discs on one side of a stop into engagement with each other and applies a modulated force to said rotor and stator discs while the first power piston is in position to oppose the spring bias, to thereby apply slip braking torque to the output shaft.

Abstract: A brake shoe has a noise insulator sheet secured to the shoe back and engaged by the piston annular end or a caliper leg. This generates one or more high pressure areas which may cause the insulation layer to buckle and separate from the shoe. By providing slots or lances through the insulation layer immediately adjacent the high pressure areas, a discontinuity is provided which prevents such buckling and separation.

Abstract: An impact-resistant phenolic resin composition comprising 99 to 25% by weight of a phenolic resin and 1 to 75% by weight of a nitrile group-containing highly saturated polymer rubber whose amount of bound nitrile ranges from 10 to 60% by weight and having an iodine value not exceeding 120.

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: A disc brake shoe in which a relatively thin gage, low-cost metal backing plate has bonded to one face a friction brake lining and is formed on the opposite face with a plurality of straps that are adapted to engage corresponding recesses formed in a complementary thick gage metal backing plate to interlock the respective backing plates into a unitary brake shoe assembly which can be easily disassembled to permit change-out of a worn brake shoe by simply substituting a newly lined, low cost backing plate for the existing backing plate having worn lining without the need to re-claim the backing plate for re-use.