Abstract: A power transmission having fluid actuated ratio establishing devices has a center support disposed in a cylindrical main bore of the transmission case and a plurality of elastomeric shims around the center support in an annular gap between the latter and the main bore. Each shim has a spacer portion in compression between the center support and the main bore which spacer portions exert balanced radially directed forces on the center support operative to centralize the latter in the main bore and the shims have coefficients of thermal expansion sufficiently exceeding the coefficients of thermal expansion of the case and/or the center support to maintain the spacer portions in compression throughout the operating temperature range of the transmission.

Abstract: A piston and cylinder mechanism wherein the cylinder moves relative to the piston and the cylinder has a cam follower extending outwardly therefrom for engaging a cam track, the cylinder having some lubricant therein. A cam follower shaft is mounted in the base of the cylinder and has a cam roller thereon. Conduit means is provided in the base and the shaft providing communication between the inner surface of the cam roller and the interior of the cylinder to provide for lubrication of the roller.

Abstract: A lubrication system for a gearbox having a forced flow of lubricant around one or more flow loops using dynamic forces imparted to the lubricant by a major element, preferably one primarily serving another function, which acts as a pump and cooperates with the gearbox casing to provide a dynamic reservoir. The primary lubrication flow loop includes an efficient flow diverter to feed a lubricant distribution reservoir, dispensers, predetermined regulated flow paths to critical items and a centrifugal separator built into the pump to deaerate the lubricant.

Abstract: A lubrication system is for a power take off assembly and a drive shaft therefor. The drive shaft is mounted for rotation within a housing having a lubricating oil sump and is hollow to include lubricating supply passages therein. The power take off assembly includes a casing sealingly secured to the housing about an opening which provides access to the open end of the hollow drive shaft. Within the casing is a take off shaft which is coaxially aligned with the drive shaft and a device for selectively coupling the take off shaft to the drive shaft. The lubrication system includes a pump which is driven by a gear rigidly secured to the end of the drive shaft and provides lubricating oil from the sump to the end of the power take off assembly casing remote from the housing. Lubricating oil passes through the interior of the power take off casing to the end of the drive shaft to provide lubricating oil therefor.

Abstract: A filler (18) for a transmission (10) is disclosed to occupy most of the space in a transmission (10) between the gears (A through G) and the housing (11), thus reducing the amount of lubricant necessary to lubricate the gears.

Abstract: The electric motor and transmission that apply power to the drive wheels of a vehicle are supplied with hydraulic fluid to lubricate the transmission and to cool the motor by a common fluidic circuit. The annular space between the motor shaft and a driveshaft provides a passage wherein fluid is distributed to the motor and the transmission under pressure. The rotor of the motor has axial passages through which the fluid flows from a radial passage connecting the annular space with the passages. At each axial end of the rotor fluid exiting the rotor, is thrown outward onto the inner surfaces of the stator windings. The fluid returns to a common sump by gravity from the motor and transmission.

Abstract: A gear drive unit has a shaft mounted impeller which a series of blades or vanes inside the housing for the drive. The impeller vanes are positioned to be in the path of travel of oil flung off of a bull gear which rotates in an oil pan extending into an oil bath contained in the housing. The impeller is rotated by the impact of the oil against its vanes. In one embodiment, the rotating impeller drives a fan located outside the housing and the fan circulates air through a series of hollow tubes extending through the housing parallel to the impeller shaft. In another embodiment, the rotating impeller drives fans disposed outside of the housing at both ends of the impeller shaft.

Abstract: A lubrication mechanism in a change-speed gearing unit in which an oil transfer trough is suspended in a fore-and-aft direction at one side of the inner wall of an extension housing secured at its front end to a transmission casing. The trough is fixed at its front end to the upper portion of the extension housing in such a way as to open toward the upper interior space of the transmission casing and fixed at its rear end to the rear portion of the side wall of the extension housing by means of a hollow bush of elastic material which is pressedly mounted within an axial groove in the rear portion of the side wall of the extension housing. The hollow bush is formed with a closed tubular portion coupled over the rear end of the trough and an outlet portion laterally extending from the tubular portion and opening toward the interior space above an oil well in the extension housing.

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: A baffle (78) encircles a planetary mechanism (10) having a ring gear element (18), a sun gear element (20), a planet carrier element (22) and a plurality of planet gear elements (24), and is connected to a stationary support (30, 48, 50, 66). The baffle (78) includes wiping means (90) for wiping fluid from one of the elements (18, 20, 22, 24) in response to rotation thereof and directing fluid that would otherwise cause high drag losses radially away from the planetary mechanism (10).

Abstract: An extension wrench for transmitting a torque to a fastener with restricted access, where conventional wrenches are not practical to use because of lack of clearance for the angular movement of the conventional wrench. The extension wrench comprises an elongated frame, housing a driven gear at one end, a driving gear at the opposite end and a meshing gear train between the driving and driven gears which transmits torque from the driving gear to the driven gear. The gears have no shafts for support but are supported on their external diametral surfaces by close fitting circular recesses in the elongated frame. The driving and driven gears have multi-faceted recesses to accept (standard square or hexagonal cross section) commercially available tools. The planform of the wrench is substantially rectangular or arcuate. Lubrication means is provided for servicing the wrench.

Abstract: A traction surface cooling method and apparatus for traction drive transmissions capable of continuous speed ratio variation in which a traction lubricant is circulated over a defined sector of a traction surface spaced from the point of rolling frictional contact of that surface with a cooperating traction surface. Provision is made for wiping the traction surface at the leading end of the sector to cleanse the surface of lubricant for more effective heat transfer from the surface to freshly circulated lubricant, and at the trailing end of the sector for preventing an excessively thick film of lubricant on the surface proceeding to the contact point.

Abstract: A pressurized lubrication system for a rotatable power shaft of a power transmission device includes a pump which is mounted on the housing of the power transmission device. The pump has a drive shaft which is coaxially aligned with the power shaft and coupled to a free end thereof so that the pump will be operated by rotation of the power shaft. The pump takes in suction from the oil sump and discharges lubricating oil under pressure to a region of the housing which is defined shaft sealing to enclose the free end of the power shaft therein. Lubricating oil is delivered through a central bore in the power shaft which has an opened end at the free end of the power shaft to be then transmitted through radial passages to various elements which are mounted on the power shaft for independent relative rotation.

Abstract: The present invention concerns an automatic transaxle wherein connecting passages between an oil pan and a final gear chamber are arranged at a higher level, being formed in the bottom portion of a transmission chamber wall above the oil pan. The transmission chamber also communicates with the final gear chamber. Oil flows between the final gear chamber and oil pan only through the connecting passages so that the oil level in the oil pan will not drop below the level of an oil intake port.

Abstract: A recirculating-ball drive has a ball nut centered on an axis and formed with an internal helical groove and receiving a spindle centered on the axis also and rotatable in the nut about the axis. This spindle is formed with an external helical groove of substantially the same pitch as the groove of the nut and having two turns interrupted by a substantially planar flat spaced radially outwardly of the axis. Faces of wedges bolted to the flat define thereon a pair of parallel guide surfaces which in turn define with the flat a passage extending between the interrupted turns of the spindle groove at an angle opposite the pitch angle of the spindle groove. An annular row of like balls fills the passage and the turn of the spindle groove interrupted at both ends by the flat.

Abstract: Apparatus usable in power-operated floor stripping apparatus that includes a frame, a drive carried on the frame, wheels supporting the frame, a handle to guide the frame, and a cutting blade carried by a head which is pivotally mounted to the frame, the apparatus comprising(a) a connecting element having a first tubular part and a second tubular part, those parts having spaced, parallel axes, the second tubular part pivotally connected to the head,(b) a drive shaft extending within the first tubular part, the shaft operatively connected to the drive to be rotated thereby,(c) the drive shaft carrying two axially spaced eccentrics to be rotated by the shaft, there being a lubricant receiving space located directly between said eccentrics,(d) and there being two annular bearings respectively carried by and within the first tubular part, those bearings respectively receiving the spaced eccentrics to oscillate the first tubular part, the head and the blade as said eccentrics are rotated by the shaft.

Abstract: Apparatus usable in power-operated floor stripping apparatus that includes a frame, a drive carried on the frame, wheels supporting the frame, a handle to guide the frame, and a cutting blade carried by a head which is pivotally mounted to the frame, the apparatus comprising(a) a connecting element having a first tubular part and a second tubular part, those parts having spaced, parallel axes, the second tubular part pivotally connected to the head,(b) a drive shaft extending within the first tubular part, the shaft operatively connectible to the drive to be rotated thereby,(c) said head consisting of lightweight metal selected from the group consisting of aluminum, aluminum alloys, magnesium and magnesium alloys,(d) the head having two elongated flanges interconnected by a web, the flanges being locally thickened near upper ends of the elongated flanges, to define two lugs forming bearing openings for a pivot shaft connected to the frame,(e) the bearing openings defining a pivot axis parallel to said drive s

Abstract: A transmission comprising a housing having one and the other longitudinal end walls. An input shaft is rotatably supported by a bearing in the one longitudinal end wall. A bearing retainer having therein an opening through which the input shaft extends is mounted on the outer surface of the one longitudinal end wall and cooperates with the bearing to define a chamber. A seal member is disposed between the opening and the input shaft within the chamber. An oil receiver is disposed within the housing adjacent to an input gear mounted on the input shaft and in mesh with a counter gear mounted on a counter shaft. Lubricating oil within a reservoir at the bottom of the housing is scooped up by the counter gear and is received by the receiver. The oil is introduced through a passage from the receiver into the chamber to lubricate the bearing and the seal member.

Abstract: An impeller lubrication system provides lubrication oil flow to a transmission pocket bearing. Splash and spray lubrication oil is directed from the transmission casing to a collector region along a shaft adjacent the pocket bearing. As the shaft rotates, oil is forced axially along the shaft by an impeller fixed to the shaft. The impeller forces the oil from the collector region to the pocket bearing through a lubrication port in the shaft.

Abstract: A scavenging gear pump for use in a final drive comprising a drive gear and a driven gear, each being mounted for rotation and in mesh with each other. The drive gear is coupled with an input shaft and rotated thereby and has formed therein a fluid passage for communicating an outlet port of the pump with a fluid chamber formed in the input shaft. A plurality of guide passages are formed in the input shaft for supplying lubricant from the fluid chamber to rotary components, such as bearings and gears.

Abstract: A small pump is connected externally of the differential housing of an axle assembly, picks up oil from the housing and pumps it through an external filter. This cools and cleans the oil and the oil may be routed to the outer bearing areas of the half shafts for lubrication. The oil flows by gravity through the axle casing back to the differential housing and, if desired, an oil cooler may be incorporated within the system.

Abstract: A mounting structure for a lubricating oil channel of a bushing of an extension for a transmission of a vehicle comprises a resilient cylindrical expansion anchor formed on a mid-portion of the channel and a cylindrical cavity formed in an inner wall of the extension for receiving therein the cylindrical expansion anchor which has been resiliently deformed, thereby securing the lubricating oil channel to the inner wall of the extension in a single operation without requiring any fastening means such as set screws or rivets.

Abstract: A lubricant retaining device for use with a gear case having a pair of matable sections with a shaft receiving opening therein. The lubricant retaining device extends inwardly to the interior of said case to reduce lubricant flow through said shaft receiving opening.

Abstract: In a window lifter, an electric motor drives a window lifting arm via a gear arrangement. The gear arrangement includes a pinion interconnected with a larger diameter gear with both rotatably mounted on a pin. The pin is secured at one end to a base plate and at its other end to a stirrup. The pinion bears against the base plate, the stirrup extends outwardly from diametrically opposite sides of the gear and is connected at its ends outwardly from the gear to the base plate.

Abstract: A transmission comprising a housing having one and the other longitudinal end walls. The other longitudinal end wall includes an upper wall section and a lower wall section offset from the upper wall section toward the one longitudinal end wall to define a step surface between the upper and lower wall sections. A counter shaft has one and the other axial ends rotatably supported in the one longitudinal end wall and by the bearing, respectively. A chamber is formed in the lower wall section with the bearing exposed to the chamber. A passage communicates the step surface and the chamber with each other to introduce lubricating oil from the step surface into the chamber for lubricating the bearing.

Abstract: A planetary speed change gearing for a power transmission system including a flywheel secured to a power transmission shaft of an engine, a flywheel housing enclosing the flywheel and an output shaft provided on the flywheel side and directly connected to a machine to be driven. The planetary speed gearing is built in a recess formed in the flywheel.

Abstract: A lubricating system for machining apparatus having a transmission unit for driving a work-performing tool. The lubricating system includes a housing in which the transmission unit is located and which forms a reservoir for lubricating fluid so that those portions of the transmission unit submerged in the lubricating fluid are continuously lubricated. A passage is formed in the housing and a threaded member is positioned in the passage in close fitting relationship therewith. The passage has an inlet in fluid communication with the reservoir and an outlet in fluid communication with a conduit for conveying lubricating fluid from the passage to selected components of the transmission unit requiring lubrication. The threaded member is rotated by the transmission unit to force lubricating fluid from the reservoir through the passage and the conduit onto those selected components of the transmission unit as it operates.

Abstract: A static load is reciprocated vertically by a crankshaft connected to the load by a wrist pin at one end of a connecting rod. Bearings are interposed between the wrist pin and the load and also between the wrist pin and the connecting rod. The wrist pin is rotated about its central axis by a chain drive from the crankshaft.

Abstract: An automatic transmission case is formed with a power output shaft support hole including a bearing portion and a sealing portion, and is further formed with a lubricating oil supply hole. A power output shaft formed with an axial through hole and at least one radial hole for conducting lubricating oil is assembled into the power output shaft support hole. A sleeve formed with a circumferential groove in its outside surface is fitted closely over the power output shaft from the side of the sealing portion, and a seal ring is mounted and received in the circumferential groove and in contact with the second portion so as to seal the annular space in the power output shaft support hole around the power output shaft, the sleeve including an oil communication passage extending between the lubricating oil supply hole in the case and the radial hole in the power output shaft.

Abstract: A transmission for automobiles including a hollow control shaft for changing speeds in response to actuation of a control lever, through which hollow control shaft lubricating oil is distributed to different parts of the transmission.

Abstract: A gear transmission apparatus for a motor vehicle, provided with an input shaft having an input gear, a counter shaft having a counter gear meshing with the input gear, an output shaft having a front end portion inserted into the input gear via a pilot bearing device, and a transmission mechanism for transmitting the rotation of the input shaft to the output shaft under predetermined gear ratios. The apparatus is further provided with at least one substantially radially extending and forwardly inclined oil passageway rotating together with the input gear, and a stationarily mounted guide plate adapted for directing lubricant oil toward the outer end of the passageway. The oil is effectively directed to the pilot bearing device via the passageway.

Abstract: In a final drive gearing of a power transmission unit, which comprises a drive pinion shaft supported by a pair of axially spaced bearings carried on an upright partition wall of a trans-axle casing and including a pinion in mesh with a crown wheel, an abdominal cavity is provided on the partition wall to receive lubrication oil dipped up by rotation of the crown wheel, and a lateral hole is provided through the partition wall to communicate the cavity into an annular space around the drive pinion shaft between the bearings.

Abstract: A gear transmission including a casing containing lubrication oil therein, an input gear rotatably mounted in the casing, an output power shaft being supported at one end thereof in the input gear through an output pilot bearing and being rotatable with respect to the input gear, and a gear piece rigidly secured to and arranged concentrically with the input gear. A bearing lubrication mechanism consisting of a cavity formed in the gear piece and an oil aperture formed in the input gear.

Abstract: Bearing apparatus for gear type power transmission systems comprising a gear casing containing a lubricating oil, gearing for power transmission retained in the casing and a bearing carried in the casing for rotatably supporting the gear shaft employs a seal for the bearing containing a lubricant so that the bearing is lubricated separately and independently of the oil in the casing.

Abstract: A lubricated friction speed change gearing of the type which employs a plurality of cylindrical rollers mounted between a fixed outer race and a rotatable inner race in a compressed and elastically deformed condition, and a spider member having spider arms which are inserted between adjacent pairs of the rollers, thereby transmitting rotary power between the inner race and the spider member with change of rotational speed, wherein the spider members have substantially plane rigid surfaces which contact the outer surfaces of the rollers.

Abstract: A gear transmission including a casing containing lubrication oil therein, a counter shaft rotatably mounted in the casing and constantly transmitting rotational movement from a power input shaft by gear trains, a counter shift gear rotatably mounted on the counter shaft through a bearing, a shift gear rigidly mounted on a power output shaft and being in constant meshing engagement with the counter shift gear, and a clutch for interrupting the relative rotational movement between the counter shaft and the counter shift gear. The counter shaft is provided therein with an oil port, one end of which is opened at one edge surface of the counter shaft and the other end of which is opened at the abutting surface between the counter shaft and the bearings. Lubrication oil is supplied to the bearings through the oil port.

Abstract: A linear drive-shaft sealing apparatus particularly useful in removing crystals from a melt solution of an evacuated chamber, which sealing apparatus comprises a first input drive shaft and a second output drive shaft, both shafts adapted for linear movement, a cylindrical element disposed between the input and output shafts and adapted for rotary movement, a housing surrounding the cylindrical element, and a multistage, magnetic seal apparatus which provides a magnetic seal between the housing and the cylindrical element.

Abstract: A camshaft post assembly is mounted onto an axial end of a camshaft and axially extends therebeyond. The camshaft post has an outwardly extending rim which has a sprocket ring mounted thereon and an eccentric pilot surface with a fuel pump cam mounted thereon and at its outer axially end a helical distributor gear frictionally locked thereon. The cam post has internal passages for lubricant which allows an oil pump to pumpoil therethrough which passes the oil through the camshaft, through the cam post, and through outlets which centrifugally spray oil onto the sprocket ring and distributor gear.

Abstract: An axle is disclosed having a housing defining a lubricant reservoir. A shaft extends through a bore in the housing and is supported by two bearings within the bore. The shaft has a radially extending surface which partially defines a lubricant chamber for pressurizing and pumping lubricant. The housing has a lubricant passageway in communication with the lubricant chamber. A seal is positioned within the lubricant chamber and has a lip which contacts the radial surface.

Abstract: A check valve provides improved lubrication of a bearing contained within a gear. The check valve is positioned within a bore in the gear, the bore extending radially inwardly from the gear teeth to the bearing. In a preferred embodiment, a ball check valve is contained in a transmission drive gear, the gear containing a pocket bearing. The ball of the check valve is held against the check valve seat by centrifugal force created by the rotation of the drive gear. As the drive gear teeth mesh with those of a countershaft gear, pulses of transmission oil are forced into the bore, intermittently unseating the ball against centrifugal force to provide a continuous supply of oil to the pocket bearing.

Abstract: An axle assembly with crown-wheel and pinion gearing and lubrication of the pinion bearings by two passages having entrances disposed close to the periphery of a rotary element, to remove lubricant from a film entrained by the element from a supply of lubricant in the bottom of the housing in the gearing, the passages directing lubricant to a chamber and then to the bearings with one or other passage effective despite changed orientation or direction of operation of the assembly.

Abstract: A power transmission unit comprises a trans-axle casing provided with an upright partition wall to subdivide the interior of the casing into front and rear chambers and having a cover plate for sealingly closing the forward open end of the front chamber, a differential gear unit arranged within the front chamber and having a pair of side-journals rotatably supported by a pair of spaced tapered roller bearings carried on a pair of carrier portions of the casing, and a crown wheel integral with the differential gear unit and in mesh with a drive pinion of a final drive gearing.

Abstract: A power transmission unit comprises a trans-axle casing provided therein with an upright partition wall for subdividing the interior of the casing into front and rear chambers and having a cover plate for closing in a fluid tight manner the forward open end of the front chamber, a differential gear unit arranged within the front chamber and having a pair of side-journals rotatably supported by a pair of spaced bearings carried on a pair of carrier portions of the casing, and a crown wheel integral with the differential gear unit and in mesh with a drive pinion of a final drive gearing to drive the differential gear unit. The cover plate is provided at its inner wall integral with a pair of lateral protrusions or ribs extending downwardly from an upper portion of the cover plate toward each side-journal of the differential gear unit at both sides of the crown wheel to receive lubricating oil flowing around the crown wheel and induct it to bearing portions of the side-journals.

Abstract: A power transmission unit comprises a change-speed gearing having a mainshaft with change-speed gears and a countershaft with counter gears for selectively driving the respective change-speed gears, and a drive pinion shaft coaxially connected to the mainshaft and having a drive pinion driving a crown wheel, the drive pinion shaft being supported by a pair of axially spaced bearings carried on an upright partition wall in a trans-axle casing.

Abstract: A power transmission unit comprises a transmission casing shaped to conform with a change-speed gearing contained therein, the change-speed gearing including an output mainshaft rotatably supported from the rear end wall of the casing, and an extension housing secured in a fluid-tight manner to the rear end wall of the casing to form a lubricant chamber in open communication with the interior of the casing through the upper portion of the wall. In the transmission unit, an oil flow control device is provided in the bottom wall of the transmission casing to transfer lubricating oil into and from the lubricant chamber.

Abstract: A planetary gear reduction system, compact in size, high in the ratio of speed reduction and improved in durability as well as easiness for assemblage and adjustment, which essentially comprises planet gear mechanisms disposed in multiple stages and in series within a casing, in which the planet gears individually include a built-in floating intermediate ring member which distributes the load imposed uniformly among the planet gears.

Abstract: In an intermittent transmission meshing mechanism comprising a toothed drive member having a toothed portion and a circular outer periphery continuous therewith and a toothed driven member having a toothed portion and arcuate locking faces formed on the opposite sides thereof, an oil retaining member having a projection projecting toward the drive member is provided on the driven member between the toothed portion thereof and each of the locking faces or on each of the locking faces. When an end of the circular outer periphery of the drive member adjacent its toothed portion comes into sliding contact with the toothed portion or locking face of the driven member, the corresponding oil retaining member slightly presses against and applies lubricant to the end.

Abstract: A traction drive torque transmission having a lubricant recirculating system by which a liquid lubricant is passed into and out of heat transfer contact with frictionally engaged rolling surfaces and in which transfer of thermal energy from the rolling surfaces to the lubricant is enhanced by removing a boundary layer of the lubricant which forms on the surfaces. Blade-like scrapers or wipers are mounted on a transmission component movable relative to the frictionally engaged rolling surfaces and are located in relation to ports through which lubricant is passed to the surfaces so that a supply of fresh and relatively cool lubricant is available at the surfaces as they are wiped.

Abstract: A tractor transmission is provided with a clutch housing containing an oil reservoir vented to the main transmission which is vented to atmosphere. A transfer pump is disposed in the clutch housing to pump an oil-air mixture from the reservoir to the main transmission housing. A portion of the pumped oil-air mixture is diverted through a line of a predetermined size to lubricate the front differential. When the oil reaches the front differential, it is diverted to the left and right final drive gear spaces separated by left and right walls from the differential gears. The oil in the final drive spaces increases in height until it passes through either the bearings supporting the differential housing or through the center of the differential pinion gears to the differential gear spaced. Holes in the left and right walls provide maximum levels of oil in the final drive spaces.

Abstract: In a power transmission unit, a protrusion is provided on an inner wall of the transmission housing to be splashed with lubricating oil pumped up by rotation of an idler gear on the idler shaft, and an oil receiver is arranged under the protrusion to receive the lubricating oil dropping from the protrusion thereby to convey the oil into the bearing at one side of the idler shaft.