Abstract: A hub of an output gear is connected detachably to a rear end of a main power train for an automatic transmission of a front engine rear wheel drive vehicle by means of splines, so that the main power train can be used as a power train of an automatic transmission for a front engine front wheel drive vehicle. The hub of the output gear has an annular groove for receiving a lubricating oil. The annular groove is enlarged in both width and depth so that most of the oil in the annular groove does not rotate together with the output gear and does not hamper the lubricating oil supply through the annular groove.

Abstract: A worm gear-actuated variable resistance device including a clutch structure, having a worm gear actuated by a worm screw. The worm gear has a toothless sector, and the teeth are engagable by the thread of the screw to rotate the gear to a position in which the screw opposes the toothless sector. The gear is mounted in a housing having a resistive element and a conductive element fixed thereto. The gear has a resilient finger having a stop member thereon which is slidable in a channel in the housing when the gear rotates.

Abstract: A lubricating structure of a differential carrier includes a drive pinion shaft attaching portion, an oil supply hole and an oil return hole extended respectively along and provided on both sides of the attaching portion and a ring gear attaching portion formed to extend the axis of a ring gear in the direction crossing these holes. A gap between a portion located on the lower side of the oil supply hole in a member surrounding the ring gear attaching portion and the ring gear disposed in the attaching portion is formed so as to be larger than that between a portion located on the upper side of the oil supply hole in the member and the ring gear. The oil supply hole is formed to give an inclination downward in front when the differential carrier is mounted on a car body.

Abstract: A roller, especially a tension roller for a belt drive has a hollow hub supporting a rolling bearing, with a pulley or rotating body supported on the outer ring of the bearing. The hollow hub has at least one closed end, with a mounting hole therethrough to enable mounting to a machine frame. The closed end or bottom of the hub is setback from the adjoining facing end of the hub, by an axially projecting annular rim. The hub may be formed of one part, or of two parts, each having a setback closed bottom.

Abstract: A device comprising a worm and a ball nut, with antifriction balls rollably engaged between their opposed screw threads to convert the rotation of either into the endwise motion of the other. Employed for the recirculation of the balls is a tubular guide providing a ball return path from one end of the ball nut to the other. The ball return guide is arcuate in shape and is mounted on the outside of the ball nut with its opposite end portions inserted in openings drilled in the ball nut in axially and circumferentially spaced positions thereon. The arcuate ball return guide is easier of manufacture, and enables the balls to travel more smoothly therethrough, than the conventional U-shaped one.

Abstract: A power take-off arrangement for a vehicle four-wheel drive transfer case. The transfer case housing end wall supports an annulus gear concentrically about the input shaft. The input shaft terminates in an end axial flange portion defining a sun gear of a helical planetary gear assembly. The inboard carrier ring includes peripheral power take-off gear teeth. The carrier rings are journalled on the opposed shoulders of the end axial flange portion. The carrier ring peripheral gear teeth are adapted to mesh with a power take-off input gear extending through an aperture in the housing side wall providing power take-off when the transfer case is driven in any of its various driving modes.

Abstract: A tensioner has rolling members disposed between a rotatable outer member and a fixed inner member. The inner member has a bottom wall at at least one end thereof. The bottom wall has therein an eccentric position aperture for position adjustment situated at a position deviated from the axis of the inner member. A fixing bolt extends through said aperture. A spring member having at least one end which can be restrained by the inner member and the other end which can be restrained by the restraining portion of a support member to which the tensioner is mounted is provided within the inner member. Thus, a desired tension may be imparted to a transmission strap contacting the outer member by the spring member.

Abstract: This invention relates to a variable speed mechanical transmission of friction drive type comprising a pair of coaxially disposed stepped conical friction drive surfaces providing a series of conical frustum shell spaces disposed in a stepwise arrangement therebetween. The extensions of the inner and outer conical surfaces constituting each conical frustum shell space have common apex point. Each conical frustum shell space includes a plurality of conical frustum rollers rotatably secured in axisymmetrically distributed positions therewithin wherein the extension of the conical surface of each conical frustum roller has the same apex point as that of the inner and outer conical surfaces confining thereof when said conical frustum rollers are under line contact with both of the inner and outer conical surfaces confining thereof.

Abstract: A drive system in which a driven member is mounted on a shaft member to rotate in unison therewith. The driven member has a protrusion extending outwardly from one surface thereof. A retaining ring having an open end is mounted on the shaft member. The open end of the retaining ring meshes with the protrusion extending outwardly from the driven member so as to rotate in unison therewith.

Abstract: A tensioner for a power transmission belt that is adapted to be operated in an endless path, a part therefor and methods of making the same are provided, the tensioner comprising a support unit for being fixed relative to the belt, a belt engaging unit carried by the support unit and being movable relative thereto, a mechanical spring unit operatively associated with the support unit and the belt engaging unit for urging the belt engaging unit relative to the support unit and against the belt with a force to tension the belt, and a fluid dampening unit operatively associated with the support unit and the belt engaging unit to dampen the movement of the belt engaging unit relative to the support unit in at least one direction of movement thereof, the fluid dampening unit comprising a rotary dampening unit.

Abstract: A speed reducing and torque transmitting mechanism includes a planar surface which is perpendicular to a first axis and a cone which rolls on the planar surface as the cone revolves around the first axis. The axis around which the cone rotates as it rolls intersects the first axis at the same point that the first axis intersects the planar surface so that under ordinary circumstances there is no slippage between the cone and the planar surface. The cone is driven by an input shaft which is coaxial with the first axis. An output shaft is connected to the cone via a crank having an arm oriented obliquely thereto in which arm the cone is rotatably journaled. An output shaft is connected to the cone adjacent to the apex thereof by a universal joint. The output shaft rotates in a direction opposite to the input shaft at substantially reduced rate with increased output torque. The mechanism is inherently torque limiting and delivers constant output torque if supplied with constant input torque.

Abstract: A lead screw positioner (10) is described, which has extremely low noise, including a nut (12) lying about a lead screw (14) and means for flowing gas under pressure between the nut and screw to keep them slightly spaced. The nut forms a plenum chamber (34) which receives pressured air, and has several holes (32) leading from the chamber to the clearance space (20) between the nut and screw to apply pressured air thereto. The nut and screw are devoid of direct sealing contact, so the pressured gas flows from the holes and axially along the screw to the end of the nut, where the gas flows into the environment.