Abstract: A lining for a brake band wherein brackets of the same shape or different shapes are connected respectively to opposite ends of a curved thin strap having an adhesive thereon, and a thin wet lining is bonded to an inner side of the curved strap, characterized in that cavities containing lubricating oil are formed in the lining.

Abstract: A fishing reel of the spin-cast type, having a body with a fixed hub, a line carrying spool rotatably supported on the hub. The reel having rotatable and non-rotatable drag washers operating on the spool creating a drag assembly. For smooth drag action during heavy usage, a lubricant retaining cavity is positioned in the drag surface of a drag assembly member. The use of a lubricant retaining cavity being optional in one or all drag assembly members, that which provides the drag action desired. A lubricant retaining cavity positioned in the drag surface permits the cavity to be covered, and retains lubricant in the cavity when the drag surfaces are engaged. The spool rotates as line carried thereon is drawn therefrom, permitting lubricant to be wiped from the retaining cavity and about the engaging drag surfaces, thereby becoming a self lubricating drag assembly.

Abstract: A coating for reducing brake pad noise is provided that includes about 40 to about 90% by weight of a phenolic thermosetting resin, about 1 to about 40% by weight of graphite, about 1 to about 40% by weight of molybdenum disulfide, and, 0 to about 40% by weight of fillers and pigments. The coating is applied to a brake pad and cured. A method for reducing brake noise is also provided which includes the steps of coating a brake pad surface with a coating including about 40 to about 90% by weight of a phenolic thermosetting resin, about 1 to about 40% by weight of graphite, about 1 to about 40% by weight of molybdenum disulfide, and 0 to about 40% by weight of fillers and pigments, and curing the coating.

Abstract: The present invention is an improved apparatus for cooling a clutch assembly in a power transmission device with a fluid. The power transmission device includes a shaft, a drive member fixed to the shaft and a driven member supported for rotation by the shaft. The clutch assembly includes at least one clutch plate and at least one friction disk which cooperate to couple the drive member and driven member when engaged and uncouple the drive member and driven member when disengaged. A fluid operated actuator selectively moves the clutch plate and friction disk between engaged and disengaged positions. The improvement comprises a passage in the shaft which conducts a cooling fluid to a location for bathing the clutch assembly and removing heat from the clutch assembly. A bore in the shaft is in communication with the passage at a location between a source of the cooling fluid and the clutch assembly.

Abstract: Disclosed is a brake band which includes a band and a lining connected to an inner peripheral surface of the band. The lining includes a plurality of grooves in its inner peripheral surface, the grooves which extend from an end to another end of the lining in an axial direction of a drum, rotating either in a clockwise direction or in a counter clockwise direction, obliquely with respect to an axial direction and a circumferential direction of the lining. The grooves include a communication passage which communicates an inner peripheral surface of the lining with the outside and which is disposed at a leading end of the grooves with respect to the clockwise rotational direction of the drum, and a trailing end of the grooves with respect to the clockwise rotational direction of the drum is disposed an inside of the another end of the lining. The brake band has a high cooling efficiency when the drum rotates in the clockwise direction.

Abstract: The damper arrangement is operated in high temperature applications, such as load and speed environments such as found in turboengines. The damper arrangement includes damper pads which are laterally urged against damping elements forming a shearing zone therebetween. The shearing zone is lubricated with solid dry powder lubricant. The damper pads include a circumferential wave or a multi-partial arc configuration formed by radial slots with inwardly tapering radial bevels and lateral bevels adjacent to the radial slots to enhance the circulation of the powder lubricant in response to nutating motion between the damper pad and the damper element.

Abstract: A brake or clutch assembly including a drum (18) and a transfer tube (36) for supplying hydraulic fluid to the drum (18). The transfer tube (36) includes a ring-like seal (59) for sealingly engaging the interface between the transfer tube (36) and the drum (18). A resilient O-ring (62), situated in a groove (64) on the transfer tube (36) and interposed between the ring-like seal (59) and the transfer tube (36), enables the ring-like seal (59) to cant relative to the transfer tube (36) without losing sealing engagement between the ring-like seal (59) and the transfer tube (36) and between the ring-like seal (59) and the drum (18).

Abstract: A circular hub containing an outside brake drum, an inside clutch drum spaced concentrically inward from the brake drum, and a plurality of circumferentially spaced supporting webs rigidly connecting the drums to each other; a plurality of spaced heat conducting fins attached to the inside of the brake drum and spaced away from the clutch drum to reduce the heat conduction from the brake drum to the clutch drum.

Abstract: A braking member for a brake of the liquid cooled type is provided on at least one side with an annular reservoir for cooling liquid, and passages are arranged to control the release of liquid from the reservoir to braking surfaces in response to centrifugal force.

Abstract: A seal is provided for a shock absorber having a housing and a piston rod partially disposed within the damping fluid in the working chamber of the shock absorber. The seal comprises a first surface engaging the housing operable to prevent the flow of damping fluid between the first surface and the housing. The seal further comprises a second surface engaging the piston rod, the second surface operable to prevent the flow of damping fluid between the second surface and the piston rod. The second surface of the seal comprises a first annular recess coaxially disposed on the second surface with respect to the piston rod, as well as a first annular lip coaxially disposed on the second surface. Finally, the second surface comprises a groove which reduces friction between the piston rod and the seal.

Abstract: An automatic transmission having a one-way brake in which an outer race is fixed to a rotational member of a planetary gear unit or to a transaxle case and, conversely, an inner race is fixed to the transaxle case or the rotational member of the planetary gear unit, characterized in that the rotational member is provided with an oil infeed plate co-rotatable therewith. Oil dispersed from the input shaft of the transmission is introduced to the one-way brake by pressure produced by the centrifugal force of the rotating oil infeed plate. Thus, burn-out of the one-way clutch is prevented since the clutch is sufficiently lubricated at the time of overrun.

Abstract: A drum-type brake and actuating system therefor comprised of a camshaft, cam and actuator mechanism that are contained within an actuator housing and a tubular shaft which journals the camshaft. A lubricant fitting permits lubricant to be introduced into both the tubular member and the actuator housing. In addition, an automatic adjuster is contained within an adjuster housing which communicates with the actuator housing and a pressure responsive valve that permits lubricant introduced through a grease fitting to be discharged from the adjuster housing. An expandable member is contained within the actuator housing for compensating for effective volume variations and precluding the exhaust of lubicant and the introduction of air during such changes.

Abstract: A fluid cooled brake for a wheel mounted for rotation about a spindle at one end of an axle and including a plurality of annular friction discs mounted within a closed annular chamber between the wheel and the end of the axle. A pump is provided having a suction line to a sump of lubricating fluid within the axle. The pump draws lubricating fluid from the sump and delivers the fluid through a first fluid passage to the chamber to circulate around the friction discs and return through a second fluid passage to the sump.

Abstract: The external sleeve of a slip brake in a torque wrench with a pair of clutches in series is provided with a spiral groove which houses lubricant. "O" rings at opposite ends of the external sleeve cooperate with an internal sleeve to seal in the lubricant. The slip brake of the present invention incorporates an internal split ring or drum which is adjustable to set the desired bias load of the slip brake. However, the split ring or drum is encased in a very thin steel sleeve which is attached, as by soldering, to the split ring. The outer surface of the thin steel sleeve abutts the inner surface of the outer ring and serves as the brake drum. Although the split ring is encased in a thin steel sleeve, the sleeve is thin enough (from about 0.025" to 0.030" thick) so that this sleeve will stretch when the split ring is expanded to increase the bias load on the slip brake.

Abstract: Friction drag washers for the drag assemblies of fishing reels are provided. The washers are made of a phenolic fiber material which is impregnated under vacuum with oil or an oil and STP oil additive solution. The viscosity of the oil can be changed to accommodate the general conditions of intended use of the reel (i.e. high drag setting--high speed withdrawal--low viscosity oil). The impregnation of the washer affords a self-lubricating lifetime washer which does not need to be changed during the life of the reel. The impregnated washers are easier and quicker to install since they do not need to be greased as they are installed.

Abstract: A multidisk clutch comprises an external bell member adapted to be coupled to a driving shaft and an internal ring member concentric with the bell member adapted to be coupled to a driven shaft. A plurality of disk members are disposed between the bell member and the ring member. Certain of these disk members are constrained to rotate with the bell member and the remainder with the ring member. A lubricating and cooling liquid is fed into the interior of the ring member, and can reach the disk members through a plurality of holes in the ring member. A generally annular scoop member is rotatably disposed within the ring member. It is constrained to rotate with the driving shaft and has a cylindrical peripheral wall disposed between the liquid feed means and the ring member. Its dimension in the axial direction is substantially the same as that of the ring member.

Abstract: A method of improving the working properties of fluid systems, e.g., hydraulic, lubrication, fuel, etc. The method lies in hydromechanical destroying or cavitation eroding the solid contaminants of the fluid, directly in the system or separately; dispersing of them into and retaining them within the fluid; releasing the gaseous and liquid contaminants, driving them off; and the emulsification of the fluid. As a side action, feeding of the pump of the fluid system is improved as well.

Abstract: The braking system incorporates at least one brake disc disc (26 36) mounted so as to slide axially on a hub (22) along key mechanisms (30, 32). According to the invention the braking system incorporates an integral device for forced greasing (60) of the key mechanisms (30, 32) formed by two sealed chambers with variable volumes joined to one another by way of the key mechanisms (30, 32).

Abstract: A hub for a wheel having a built-in brake assembly and suitable for use in ndustrial vehicles, agricultural machinery, civil engineering plant and materials handling plant comprises a stub axle on which is rotatably mounted a hollow body forming a casing to contain a lubricating and cooling fluid. A brake assembly with fixed and rotatable disks is disposed within the hollow body inside an annulus constrained to rotate with the stub axle. Associated with the annulus is a scooping device adapted to provide communication between the interior of the annulus and the annular space between the annulus and the hollow body, for improved supply of the lubricating and cooling fluid to the interior of the annulus.

Abstract: A hydropneumatic suspension unit includes a large diameter flanged road arm spindle which is bolted to the vehicle hull; a road arm has one end rotatably mounted on the road arm spindle and another end mounting a road wheel; a barrier fluid sealed piston is reciprocated relative to a road arm bore to seal an in-arm mechanically operated pneumatic spring which has a gas volume trapped by the barrier fluid sealed piston to support the sprung mass of the vehicle; the sealed piston is defined by a pair of spaced seals and an oil chamber which has an oil charge therein pressurized by preload spring on the piston to displace the oil barrier to both lubricate and preload the pair of spaced seals as the piston is dynamically operated to vary gas compression and produce a resultant pressure on the piston to counteract vertical forces on the road wheel.

Abstract: An improved disc brake is of the type which includes a disc mounted for rotation about an axle. An axle housing is mounted on the axle in alignment with a friction surface of the disc. An axially movable braking piston has an interior end at least partially mounted within the housing and an external end outwardly of the housing adjacent the friction surface of the disc. The braking piston has a plurality of axially extending splines about an exterior surface of the interior end to mate with corresponding splines on an interior surface of the housing to limit rotation of the braking piston relative to the housing. The brake is actuated by the piston being axially moved toward and away from the friction surface of the disc. Lubricant can be supplied and periodically resupplied to an interior of the housing. The improvement includes providing the housing with a cylindrical recess at the end thereof adjacent the disc for receipt of a sealing ring made of resiliently compressible material.

Abstract: A wheel hub assembly for heavy-duty vehicles comprises a hollow body containing a liquid lubricant having a first compartment housing wheel drive reduction gear and a second compartment adjacent the first compartment housing a wheel brake mechanism. A portion of the sidewall of the hollow body annularly surrounds one of the compartments (preferably the second) and comprises at least one pair of longitudinally extending, oppositely sloping generally oblique grooves for circulating the lubricant between the compartments. The grooves of each pair are preferably symmetrical. Grooves sloping in a first direction are arranged along a first semi-circumferential zone and the grooves sloping in the opposite direction are arranged in a second semi-circumferential zone. In the illustrated embodiment and annular interior wall separates the compartments and comprises a planetary pinion carrier and has channels in alignment with the oblique grooves for carrying liquid between the oblique grooves and the first compartment.

Abstract: An improved power absorption device of the general Prony brake design is capable of either applying to a rotating shaft either a fixed force or a force proportional to its rotational speed or for measuring mechanical power transferred to a rotating shaft by a prime mover. A stator shaft aligned with the rotating shaft is sealed within a cylindrical drum which is coupled to the rotating shaft and rotated thereby. A hydraulic system actuates a plurality of pistons in radially outward directions so as to frictionally engage the inner surface of the rotating drum. The resulting heat build-up is transferred through the finned, high-heat transfer lateral walls of the drum to water in a tank in which the rotating drum is located. Brake lubrication is provided by a closed lubricant circulation system within the rotating drum capable of providing efficient, uniform lubrication of the brake surfaces.

Abstract: A combined lubrication and brake actuating fluid system for a drive axle, separate from the transmission hydraulic system of the vehicle, which utilizes the differential housing as a reservoir and uses the extreme pressure gear lubricant therein as the operating fluid. A pump distributes the gear lubricant through a pressure balanced spool valve, responsive to a brake pedal controlled pilot pressure valve associated with the transmission hydraulic system having output ports to both the lubricating inlet of the axle assembly and also to the brake actuating input port.

Abstract: Disc brakes have heretofore not received wide utilization on fork lift trucks because of the problems of space and lubrication. A lift truck has a very small, central hub area which greatly limits the size and type of brake and the ways of lubricating the brake. The disc brake actuator (7) of the present invention meets the problem of incorporating disc brakes (10) into the limited space of the wheel drive assembly (22) of a fork lift truck by mechanically applying the disc brakes (10) through axial rotation of the actuator (37,50) about the jack shafts (18). The difficulty of lubricating the disc brakes (10) is overcome either by utilizing the brake actuator (37) as a conduit for lube oil from the differential (11) or sealing off the lube oil from the differential (11) with a seal (58) in the brake actuator (50) so that the disc brakes (10) can be independently lubricated.

Abstract: Lubricating oils containing oil soluble hydroxyalkyl alkanoates have been found to reduce brake noise for oil-immersed disc brakes.

Abstract: A brake support assembly to be mounted on a vehicle axle housing for supporting a brake shoe assembly and an actuator therefor comprising a backing plate adapted to be fixedly mounted on a vehicle axle housing and two anchoring plates removably attached to the backing plate for pivotally supporting the brake assembly. Each anchoring plate includes projections which correspond to bores in the backing plate for positioning the anchoring plate at a predetermined position on the backing plate whereby the anchoring plate may be removed and replaced while maintaining a constant positioning of the brake assembly. In a first embodiment, the anchoring plate includes integral projections extending therefrom. In a second embodiment, the anchoring plate includes a tapered bore extending therethrough for supporting a pin. The pin extends from the plate defining the projection which corresponds with the bore in the backing plate.

Abstract: Lubricating oils containing oil soluble C.sub.8 -C.sub.28 alkane-1,2-diols have been found to reduce brake noise for oil-immersed disc brakes.

Abstract: A load-carrying, shock absorbing strut is provided comprising an outer tube for carrying a wheel axle journal. There is slidably accommodated in the tube a shock absorber cylinder which is connected with the chassis frame. A downwardly emerging piston rod of the cylinder is fastened to the bottom of the outer tube. Between the shock absorber cylinder and the outer tube there is provided a lubricant annular chamber of constant volume which is closed off above and below by upper and lower guide and sealing rings arranged on the outer tube. A sealing ring is arranged above each guide ring with axially limited play and comprise lubricant-sealing felt rings. To effect good dirt-deflecting action there is present above the upper sealing ring a dirt-deflecting ring which has the dual function of limiting the sealing ring axial play as well as removing dirt from the shock absorber cylinder.

Abstract: An annular friction disc has a flat friction surface on each side of a flat steel plate with each friction surface having a plurality of radially extending grooves formed therein. Each groove has a flat bottom portion which extends between the inner and outer circumference of the friction surface and is displaced axially from the friction surface at the inner circumference and is contiguous with the friction surface at the outer circumference. Each groove also has a pair of tapered side walls extending between the bottom portion and the adjacent flat friction surface.

Abstract: A device for forming a sprue or vent hole in a foundry sand mold. The device includes a body having a central bore and having an air outlet in the upper end of the body communicating with the bore. An axial opening in the lower end of the body has a smaller diameter than the bore. Mounted for movement within the body is a pin or plunger which has an enlarged head that is slidable within the bore and a lower stem which is slidable within the opening. The pin is urged outwardly of the body by a spring, and a seal is located between the stem portion of the pin and the wall of the body bordering the opening. The pin is formed with an internal passage, one end of which is located at the inner end of the head of the pin and the other end of the passage opens at the side of the stem.

Abstract: A hydrodynamic retarder for vehicles, especially for motor vehicles, with an internal working circulation within a working space having at least one rotating blade wheel and at least one stationary blade wheel, with an external cooling circulation that can be filled by way of a filling and discharge line out of a pressure-medium-actuated filling cylinder and which includes a by-pass or control valve, and with a lubricating line which connects the sealing spaces of the retarder shaft both with the center of the working space as also with a control member of the control valve and with a reservoir tank that is arranged at a higher level than the retarder and is additionally connected with the filling and discharge line by way of a closure valve.

Abstract: A hydraulic eddy brake has a rotor and a stator both forming an eddy chamber. Liquid supply conduits lead to the center of the eddy chamber. The rotor shaft is sealed relative to the housing formed by the stator. The sealing is accomplished by noncontacting sealings. Leakage liquid is discharged to respective chambers located between the bearings and the eddy chamber proper. A gap is provided between the shaft and the housing. This gap is connected with the center of the eddy chamber through a liquid feedback which may include an intermediate chamber and respective liquid feedback conduits whereby the pressure at the point of leakage is minimized. Such brakes are used as absorption dynamometers to measure torque.

Abstract: Pressurized oil is delivered into the space containing the friction surfaces of a servo-motor actuated disc brake, such delivery being momentary and in response to the delivery of pressurized fluid to the servo-motor itself. Such oil into the space serves to retard the engagement of the friction surfaces, and also to lubricate and cool the same. The arrangement may include a cylinder having a movable member responsive on one side to the pressurized fluid going to the servo-motor for pushing oil via a maximum pressure valve to the space. The brake may be a control for the guide member of a double rotation torque converter.

Abstract: A wet type band apparatus characterized by the construction that, in the wet type band brake apparatus provided on the outer periphery of the brake drum with the lining fixed on the inner periphery of the brake band, a groove is cut on the contact surface of the lining in the peripheral direction, oil holes are perforated through the brake band and lining with their openings in the groove and at the same time, lubricating oil is supplied to the aforesaid oil holes and the discontinuous part located at the opening of the aforesaid brake band respectively.

Abstract: A brake mechanism, applicable to the braking of trailer vehicles, has an electro-magnetic arrangement which is disposed between the inner ends of coaxial wheel supporting shaft units to selectively and individually control the rotation thereof. Each shaft unit has a gearing arrangement for transmitting the braking action to the wheels. Oil is circulated between the spaces of the stationary and moving parts of each shaft unit. And the production of air pressures from heat generated by the functioning of the units is eliminated.

Abstract: A non-exhaustable permanent brake for a vehicle motor, which includes a fluid operable braking unit arranged in the housing of the vehicle motor and comprising a pump wheel which is drivingly connected to the crankshaft of the motor and is interposed in a liquid lubricant circulating circuit. This pump wheel has associated therewith a follower which normally is freely and under no load rotated by the liquid lubricant circulated by the pump wheel but can be arrested by a friction brake to brake the pump wheel and thereby the motor.