Abstract: A gear including a frame, a first shaft, a first gearwheel arranged on the first shaft and in engagement with a second gearwheel mounted on a second shaft, the second shaft including bearings at both sides of the second gearwheel between the frame and the second shaft. The second shaft revolves about the bearings placed on each side of the second gearwheel. At least one spring is fitted to act with a force upon an outer race of rolling members of one of the bearings. A glide fitting is provided between a circumferential face of the outer race and the gear frame or a connected part. The force effect applied by the spring(s) is transferred through the rolling members of the bearing to the inner race of the bearing and further to the other bearing placed at the opposite side of the gearwheel whereby the play in both bearings between the rolling members and the bearing races is eliminated.

Abstract: A driving apparatus comprises a rotation member, a shaft and a restriction member. The rotation member has a shaft-receiving portion. The shaft is fitted into the shaft-receiving portion so as to permit rotation of the rotation member relative to the shaft. The shaft has a protrusion projecting in a direction substantially perpendicular to an axial direction of the shaft. The restriction member prevents the rotation member from deviating in a projecting direction of the protrusion.

Abstract: A mounting apparatus for mounting a rotating element to a housing is disclosed. The housing defines an opening through a wall of the housing. The mounting apparatus includes a tube including an aperture therethrough. The tube includes a first tube portion thereof including a cylindrical outer periphery and a second tube portion thereof connected to the first tube portion and securable to the opening through the wall of the housing. The mounting apparatus further includes a cap including a body portion thereof having a body outer periphery thereof matingly fitted to the aperture of the tube. The cap further includes a flange extending outwardly from a first end of the body portion in a direction perpendicular to the body outer periphery of the body portion of the cap. The cap further including a connector extending from a second end of the body portion opposed to the first end. The connector is utilized for connecting the cap to the tube.

Abstract: A plastic gear is rotatably supported on at least one plastic fixed support stud, which is preferably formed of plastic and molded on a metal support plate. The fixed support stud has three equiangularly spaced lobes extending from its outer surface without any nominal clearance with an inner surface of a hub of a plastic gear defining a bore in the gear hub to receive the fixed support stud. The lobes cause deformation of portions of the gear hub between the adjacent lobes. By increasing the clearance between the outer surface of the fixed support stud and the inner surface of the gear hub, spaces are provided between the adjacent lobes to allow portions of the inner surface of the gear hub to extend thereinto due to the deformation of the plastic. This reduces the vibration or jitter of the plastic gear, which is the output gear of a gear train for driving a photoconductive drum of a laser printer to improve its print quality.

Abstract: An offset axle (1) for low-platform town buses. It solves the problem of making it possible to integrate disc brakes in the offset axle system without reducing the aisle width of the platform in the vehicle in the area of the axle and obtaining a sufficiently low platform level in spite of the gantry being significantly lowered owing to design requirements. Disposed eccentrically in the offset axle (1) is a differential (2) the axle shafts of which are each inserted into a drive pinion (5) of a gantry drive (3) with demultiplication effect, the drive being freely mounted in a self-centering manner between two intermediate pinions (6) each of which transmits half the drive power to a spur wheel (7) in order to drive the wheels. Owing to the two gantry drives (3), the axle shafts (4) are lower than the wheel axles by the depth of the gantry. The axle shafts (4) are mounted eccentrically on the upper edge of the interior of the axle bridge housing (8).

Abstract: A gear reduction system is provided including two-stage gear reducers that may be converted to three-stage gear reducers by addition of a modular input stage. The modular input stage converts the input stage of the two-stage reducers to an intermediate stage of the three-stage reducers. Gearing, preferably including both drive pinions and driven gears, of the input stages of the two-stage reducers are used in the intermediate stages of the three-stage reducers, thereby reducing the overall number of parts needed for a family or series of reducers. Gearing is also common between input (and intermediate) stages of smaller gear reducers and modular input stages used with larger gear reducers, further reducing the number of different parts. The two-stage reducers and modular input stages of the three-stage reducers are preferably driven by modular transmission adapters that support the drive pinions of the input stages.

Abstract: A system for transmitting power and motion is presented in which at least one component for transmitting power and motion communicates power and motion to another component in which two means are articles of polyketone polymer. In one aspect of the invention the component for transmitting power and motion are spur gears. In another aspect of the invention at least one of the component for transmitting power and motion includes worm gearing.

Abstract: A fixing device for thermally fixing a toner image formed on a recording medium by an image forming apparatus is disclosed. A heat roller included in the fixing device is prevented from moving in its axial direction or thrust direction without causing any leak to occur. While a heating layer and a temperature sensor are electrically isolated from each other, the temperature sensor can accurately sense the surface temperature of the heat roller without damaging the surface of the heat roller.

Abstract: A rotary cutterbar housing is constructed of a plurality of modules mounted in side-to-side relationship with the opposite sides of each module being planar and being secured in face-to-face engagement. A spur gear train is located within the housing and includes at least one gear in each module which is meshed with a spur gear of an adjacent module so that portions of the teeth of the spur gear associated with one of the modules extends a short distance into the other module, and vice-versa. The opposite sides of the modules are parallel to each other and are inclined relative to vertical such that a module between two other modules can be unbolted from them and removed without requiring the other modules to be moved in order to provide clearance for the protruding portions of the gear teeth.

Abstract: An apparatus for limiting deflection of the armature shaft 38, 38', 103 of an electrically powered tool, such as a hand held saw 10 or drill 91. In saw 10, the armature shaft 38, 38'extends as a cantilever from the motor 14 and has a geared connection 58, 60 to an arbor 44 for driving the saw blade 18. An arrangement for limiting the deflection of the armature shaft 38, 38' comprises a pilot member 72, 84 and a socket 68, 82 associated, respectively, with one and the other of the armature shaft and a motor housing supported wall. The socket 68, 82 is larger in cross-section than that of the pilot member 72, 84 and limits transverse deflection of the armature shaft 38, 38' away from its axis of rotation A. If the saw 10 stalls in the material being cut, force is transmitted from the geared connection 58, 60 to the armature shaft 38, 38'.

Abstract: Transmission device for vehicles with a front cab, with front-wheel drive, and with a chassis to which bodywork may be added. This device relates more particularly to vehicles intended, from the outset or after conversion, to take a lowered platform, especially showman's vehicles, mobile laboratories, or travelling sales vehicles. The device, designed for a front-wheel drive motor vehicle with a front cab and a lowered chassis, comprises a front axle assembly and a gearbox, the output shaft of which is arranged longitudinally with respect to the axis of the vehicle, behind the gearbox. It includes a casing, a first gear which can be mounted on the output shaft of the gearbox, a second gear mounted on a transfer shaft towards the front axle assembly and an intermediate gear permanently in mesh with the first gear and the second gear.

Abstract: An apparatus for limiting deflection of the armature shaft 38, 38', 103 of an electrically powered tool, such as a hand held saw 10 or drill 91. In saw 10, the armature shaft 38, 38' extends as a cantilever from the motor 14 and has a geared connection 58, 60 to an arbor 44 for driving the saw blade 18. An arrangement for limiting the deflection of the armature shaft 38, 38' comprises a pilot member 72, 84 and a socket 68, 82 associated, respectively, with one and the other of the armature shaft and a motor housing supported wall. The socket 68, 82 is larger in cross-section than that of the pilot member 72, 84 and limits transverse deflection of the armature shaft 38, 38' away from its axis of rotation A. If the saw 10 stalls in the material being cut, force is transmitted from the geared connection 58, 60 to the armature shaft 38, 38'.

Abstract: A drive mechanism of a suction or deflection adjustment roll having a spur wheel gear. For a suction roll, a stationary suction box may be guided outward through the drive mechanism to be coupled with a suction device. An external gear ring may be rigidly coupled to a driven or gear end of the roll to mesh with a driven pinion. The driven pinion may be driven via a drive shaft coupled to the driven pinion through a pair of enmeshed gears. The driven pinion and an end of the drive shaft coupled to the pinion may each include a self-adjusting bearing, each self-adjusting bearing being adjacently positioned and supported on a bearing journal. The self-adjusting bearing associated with the end of the drive shaft may exhibit radial play with respect to one of an inside diameter of the drive shaft or an outside diameter of the bearing journal, which may permit tilting of the pinion with respect to the bearing journal.

Abstract: A gearbox (1) is formed by two steel plates (3,5) which support molded elements (such as 13b and combined 35e, 33e). A separate molding operation is performed on each plate, in which a plurality of individual molded parts are molded. The precise positioning is from the mold, not the plate. The liquid plastic is bound to the plate by entering a plurality of holes (such as 66 and 66a) for each part. The plates are then populated and then held together by screws (72a-72d). A bevel gear (31) is mounted on the outside by molded supports (29a, 29b) and by contact with gear (36) with which it meshes.

Abstract: A viscous coupling gear device has a first case having a protrusion extending from a surface thereof, and a second case having a surface facing the surface of the first case and a protrusion extending from the surface of the second case. A gear has a driving portion for driving engagement with a first rotary member undergoing intermittent rotation and for transmitting intermittent rotation to the gear, a tubular portion extending from the gear and mounted on the protrusion of the first case for relative rotation therewith, and a tubular wall portion extending from the gear and disposed coaxially with and spaced from the tubular portion to define a cavity therebetween, the protrusion of the second case extending into the cavity and defining, together with the cavity and the tubular wall portion, a clearance. A driving member engages with a second rotary member for transmitting rotation of the gear to the second rotary member.

Abstract: Gear wheel play between cooperating gears of two cylinders whose axial spacing can be varied, in a rotary printing press can be eliminated by use of a free wheeling gear supported on the journal of the first of the two cylinders and engaging the gear wheel on the second cylinder. A circumferential shifting of the free wheeling gear will eliminate gear wheel play. A phase adjusting gear assembly is used to accomplish the circumferential phase shifting of this gear.

Abstract: The present invention is related to a driving structure of the external rotary disk of the crystal ball the inner rim the external rotary disk of which is provided with two set of gears which is engaged with the external rotary disk. The diameters of center gear for each set of the gears are different with each other, wherein the center gears are formed an unidirectional device with the axle of the spring. Therefore, the external rotary disk is driven by the dynamic force of the spring of the music box through one of the gears sets, on the contrary, the external rotary disk can be rotated with a preset direction, thus the other gear set will be driven to rapidly tightly wind the spring of the music box.

Abstract: A transmission mechanism for a scanner includes a frame having a plurality of holes with different sizes and a series of gears mated with each other through different numbers of teeth. Due to different locations of where the transmission mechanism are mounted, the frame is able to be adapted to different type of motors.

Abstract: A transmission assembly used to connect with a rotatable ornament or a toy to provide bilateral rotations for achieving their cosmetic effect comprises a casing enclosing a set of three pinions which are driven by a battery-operated electrical circuit therein. An elastic rectangular bar used to restrict the rotary extent of a first pinion will elastically obstruct the rotary movement of the pinion in order to provide continuous bilateral rotation and each turn of the bilateral rotation will exceed 360.degree. without making any noise. The noses of the spindles of the pinions are formed as tapering sockets or as tapering pointed plugs to enhance the intensity of the assembly. Most of the components in this assembly are made integrally of plastic material so as to reduce the time and cost to manufacture.

Abstract: Electrically powered or manually driven clutch and brake mechanism for an electric wince cooperate with a transmission mechanism. The clutch mechanism is provided with a thrust bearing on a clutch shaft and a large clutch gear is then inserted thereon. A lining plate is attached to a clutch plate of the large gear and a pinion gear is attached tightly to the lining plate. Another thrust bearing is placed behind the pinion gear and a compression spring is inserted on the clutch shaft. The large and the pinion gears can be pushed tightly together or loosened as a function of resiliency of the spring. A clutch hand wheel can be provided for manual operation. In addition, the brake mechanism is designed such that a rotating shaft of a motor is provided with a disc brake which has a unidirectional bearing. The disc brake can be squeezed tightly by disc pads.

Abstract: Disclosed is a high strength, self-lubricating, non-metallic gear which requires no lubrication when running with a metallic gear. The gears are cut with a non-standard tooth form to provide superior power transmission performance and the metallic gear is selected from special pinions having range indicators for assuring proper gear and pinion combination.

Abstract: A portable rescue tool which operates off electric power and which comprises a clutch mechanism for orienting high torque spreading and/or cutting motion that is produced by the portable rescue tool in a plurality of possible directions with respect to the portable rescue tool. The portable rescue tool comprises a rotary switch for controlling the operation of the portable rescue tool, a DC motor connected to the rotary switch for providing a high speed, low torque output, a gear reduction assembly coupled to the DC motor for decreasing the speed and increasing the torque of the DC motor output, an actuator assembly coupled to the gear reduction assembly for providing a low speed, high torque output, and a clutch mechanism associated with the actuator assembly for orienting the direction of the low speed, high torque output with respect to the portable rescue tool.

Abstract: A gear machine (pump or motor) has two externally meshing gear pairs (21, 22) which are arranged so as to be offset relative to one another and are attached to a drive shaft (31) by a toothing (30), the number of teeth of the toothing (30) being an even-number multiple of the external teeth of the driven toothed wheels (16, 18). The toothing width (b) of the driven toothed wheels (16, 18) on the drive shaft (31) is smaller than their toothed wheel width (B), in particular smaller than one-half the toothed wheel width (B). This improves the mechanical characteristics of the gear machine its operating reliability. The invention can also be used with gear machines with only one gear pair (21a).

Abstract: A surgical instrument which allows the surgeon to insert the instrument in a remote location in a body cavity and from the proximal end rotate a control knob to rotate a tool bit mounted on the distal end for use in prostheses. The surgical instrument can be held in one hand and the control knob can be manipulated by the thumb or finger(s) of that hand. Several drive mechanisms including a spur gear train, bevel gear, spherical ball and link chain and belt are disclosed.

Abstract: Disclosed is a high strength, self-lubricating, non-metallic gear which requires no lubrication when running with a metallic gear. The gears are secured to their shafts with keyless retaining devices, and the gear set is cut with a non-standard tooth form to provide superior power transmission performance.

Abstract: A gear set is provided having a plurality of two-stage intermediate gears which do not require indexing on assembly or reassembly of the gear train. This is provided by aligning the two-stage gear teeth in axial alignment tooth for tooth between the stage while maintaining an appropriate number of teeth on the input and output gears.

Abstract: Box blank-forming apparatus (60) is provided which includes a feeder assembly (62) and a scoring/slotting assembly (64) each provided with adjustment structure (62a, 64a) to facilitate makeready adjustment of the apparatus (60) between production runs. The feeder assembly (62) preferably includes a reciprocal pusher element (170) operable to successively engage sheets (30) to be formed into box blanks (36). The element (170) is supported by a pair of elongated, threaded, axially rotatable, fore and aft translatable positioning screws (146, 148), so that upon rotation of the screws (146, 148), a reference position of the pusher element (170) may be varied. Adjustment of the assembly (64) is accomplished by means of compensators (292, 294) which are respectively coupled to associated slotter wheel and scoring wheel shafts (288, 286).

Abstract: A low noise type reduction gear which assures that sound generated by collision of particles of a lubricant with a wall surface of a casing and sound attributable to resonance of the casing can substantially be attenuated by arranging laminated vibration damping steel sheets inside of the casing.

Abstract: An epicyclic gear comprises housing, pinion forming on an input shaft supported in the housing, at least three planetary gears supported in the housing via shafts and geared with the pinion, an internal gear supported in the housing via an output shaft and surrounding and geared with the planetary gears, a passage for lubricating oil through the housing into the shafts of the planetary gears, a conduit supported on at least one shaft and for conveying oil from the shafts towards the center of the housing via outlet jets, and a bridge supported between at least two shafts and supporting the outlet jets, wherein at least one planetary gear overlaps the remaining adjacent planetary gears in an axial direction of the pinion without mutual interfering with each other.

Abstract: An apparatus is provided for use with a shaft mountable gear reduction drive in which a driven shaft is coupled with reduction gears by a hollow intermediate output shaft. The output shaft is journaled within the gearbox and has a tapered axial passage for receiving one end of the generally cylindrical driven shaft. A tapered bushing is wedged into the axial passage to interlock the output shaft and the driven shaft for synchronous rotation. A retaining nut is threaded to the outboard end of the output shaft and is rotated relative thereto to advance the nut axially along the driven shaft and forcefully lock the tapered bushing in place. In order to facilitate the driving engagement of the bushing with the output shaft and driven shaft, a nut locking apparatus is provided for preventing rotation of the retaining nut when the output shaft is rotated by the gear drive, and thereby drawing the tapered bushing along the driven shaft.

Abstract: Speed reducer, such as a screw conveyor drive, adapted to receive a shaft within a tapered sleeve. The shaft includes a tapered portion adapted for engagement with the corresponding tapered portion of the sleeve on one side of the housing when the shaft is inserted into the bore. On the other side of the housing, a split bushing is provided for receipt within the sleeve, the split bushing including a tapered surface for mating engagement with the tapered surface on the sleeve. A retainer plate is provided that is adapted to be placed on the end of the shaft extending through the bore. The retainer plate has a center hole for receipt of a capscrew through the retainer plate and into the shaft to securely maintain the shaft in place. The retainer plate further has a plurality of holes dimensioned so that the head and shank of screws may extend therethrough and a plurality of holes dimensioned so that only the shank of the screws can extend therethrough.

Abstract: A toy gear assembly includes a base, a ring gear assembly, a drive gear, a tripod-like support frame assembly and a plurality of secondary gears. The ring gear assembly includes a rotatable gear ring portion and the ring gear assembly and the drive gear are securable on the base so that the drive gear is received in the interior of the ring gear assembly for rotating the gear ring portion thereof. The support frame assembly is also releasably securable on the base and the secondary gears are receivable on the base and on the support frame assembly for forming various different gear train combinations thereon.

Abstract: A change speed apparatus for a fishing reel comprises a plurality of sun gears having different numbers of teeth, an input shaft carrying one of the sun gears and rotatable by a handle, an output shaft connected to a spool and carrying the other sun gear, a differential gear including toothed portions having different numbers of teeth for meshing with the plurality of sun gears, a gear holder for supporting the differential gear, a first transmission line for restricting rotation of the gear holder to transmit drive from the input shaft to the output shaft through the differential gear, a second transmission line for rendering the gear holder rotatable to directly couple the input shaft and the output shaft, and a transmission switching mechanism for selecting between the first transmission line and the second transmission line.

Abstract: A speed change apparatus for a fishing reel is provided with an input shaft having a first sun gear, a second sun gear different therefrom in the number of teeth, and a differential gear having smaller diameter toothed portion and a larger diameter toothed portion different in the number of teeth from each other and engageable with the first and second sun gears, respectively. The differential gear is rotatably supported to a reel body. The smaller diameter toothed portion is separated from the larger diameter toothed portion so that one or both of the toothed portions is made freely rotatable. And a clutch for integrally connecting or disconnecting both the smaller diameter toothed portion and larger diameter toothed portion is provided.

Abstract: The present invention, whose auto sheet feeder is demountably mounted on a printing machine, which includes a sequential arrangement of a reversible motor, a transmission mechanism, and a rotatable platen, is provided with an input gear, an arm whose one end is supported by the input gear for rotation around its axis of rotation and is urged to move toward a gear of the transmission mechanism, and as planetary gear rotatably provided at the end of the arm to be constantly in mesh with the input gear and opposite to the periphery of the gear of the transmission mechanism.

Abstract: A machine with at least two working shafts, particularly a double-screw extruder machine, comprises associated with each shaft a gear rotated by a drive gear, coaxial to said shaft and gear by way of at least two idle gear wheels acting on said gear and disposed within the drive gear.Each idle gear wheel rotates about a shaft supported by a support member which is advantageously mobile in a plane orthogonal to the axis of the shaft and is disposed about this latter; between the drive gear and idle gear wheels there is provided a floating gear to transmit the drive force of the drive gear to said idle gear wheels.

Abstract: A driving power transmission system for transmitting a driving power to front tires and rear tires, wherein a torque transmission device is disposed within a drive line for controlling transmissive torque transmitted to the tires. The torque transmission device is provided with a rotational housing to which a driving power from an engine is applied, a cylindrical shaft which is drivingly connected to the tires. The housing receives a clutch mechanism for transmitting a rotational torque from the housing to the cylindrical shaft, a piston located adjacent to the clutch mechanism and a pressure generating mechanism having an input rotational shaft for generating a pressure so as to actuate the clutch mechanism through the piston.

Abstract: Transmission series with a variable gear stage (variation stage) consisting of a pair of gearwheels. Within the series, the variation stage encompasses a range of permissible sizes (B.sub.i =B.sub.1 . . . B.sub.m) which in each case have the same centre distances (A.sub.i =A.sub.1 . . . A.sub.m). The same range of permissible transmission ratios (I.sub.i =I.sub.1 . . . I.sub.n) is provided for all sizes, so that the centre distances (A.sub.i) and the transmission ratios (I.sub.i) form a matrix (M). The number of components required is substantially reduced by correlating the graduation of the centre distances (A.sub.i) and the graduation of the transmission ratios (I.sub.i) in such a way that the same gearwheel is used in a variation stage sequence (S) comprising a number of variation stage sizes.

Abstract: An arrangement for manually driving a winch (1) or like rotatable device, comprising an input rotational shaft (2) which is actuable for driving the rotational device and arranged to rotate an external drum (3) or the like at a given transmission ratio, the arrangement comprising a preferably peg-like drive part (4) which co-acts rotationally with the input shaft without mutual rotation therebetween and further comprises a crank arm (5) or the like intended for co-action with the drive part such as to produce a rotational movement.The arrangement is particularly characterized by devices (12) which transmit rotational movement of the crank arm (5) to the drive part (4) at a given transmission ratio.

Abstract: A shroud for a gear train (12) includes a plurality of meshing gears (14), each gear (14) having sides (14a, 14b), teeth (16) and an outer diameter (14c). The shroud (10) includes a curvilinear enclosure (20) for encircling the outer diameter (14c) of each gear (14) within the gear train (12) and for enclosing the sides (14a, 14b) adjacent to the outer diameter (14c) of each gear (14) within the gear train (12). The enclosure (20) includes a pair of side walls (20a, 20b) and an end wall (20c). The end wall (20c) includes first (36) and second (38) ports associated with ones of the plurality of gears (14) in the gear train (12), such that the first port (36) allows for cooling fluid to be injected into the enclosure (20) and the associated second port (38) allows for cooling fluid to be ejected from the enclosure (20).

Abstract: Power actuator unit for servo-drive of motor vehicle body closures e.g. centrally controlled door latches and locks, window winders etc and including a power transmitting drive train wherein the latter includes a female bearing surface, e.g. the bore (34) of a boss (30) of a gear wheel or pinion (31) which is a running fit on a complementary male bearing surface e.g. a metal shaft (32). One surface e.g. of the shaft is at constant radius from the axis of relative revolution of the surfaces e.g. is cylindrical; and the other surfaces e.g. the bore (34) is formed to have a plurality of facets or other sections e.g. by being square in diametral cross section to provide line or point contact with the one surface at sufficient angularly spaced locations to ensure true running but the facets or sections not being otherwise in contact with the one surface e.g.

Abstract: An apparatus for transmitting the turning force of a capstan flywheel for video cassette recorders by which the turning force of the capstan flywheel driven by a capstan motor is transmitted to the reel disk selectably at high speed and low speed. The apapratus includes a slider gear provided with a clutch gear slidably mounted to a shaft and located between the capstan flywheel having a geer portion and a connector gear. The shaft is moved up and down by mean of a slider lever which is interlocked with a clutch lever pivotally mounted by a pinch lever.

Abstract: A mechanism (10) for limiting rotation of a rotatably mounted first shaft (12) in accordance with the invention includes a housing (28) in which the first shaft is rotatably supported; a torque input (14) coupled to the first shaft; and a torque output (18) coupled to the first shaft; a second shaft (30) rotatably supported by the housing and movable between a first axial position in which the second shaft does not engage the first shaft and a second axial position in which the second shaft engages the first shaft; at least one member (32) attached to the second shaft which projects radially from the second shaft; and the housing having an inner cavity (42) with at least one surface (70) which engages the at least one member which projects radially at first and second angular positions of the shafts to provide for a limited degree of angular rotation of the shafts when the second shaft is in the second axial position.

Abstract: A swing reduction gear assembly for a swing device which prevents admission of grease into the same and in which the pressing force of grease squeezed out from between mutually meshing teeth of a pinion and an internal gear wheel thereof is reduced. The swing reduction gear assembly comprises a lower bearing for supporting an output shaft for rotation on a casing, a sealing collar fitted on an outer periphery of the output shaft and located above a pinion integrated with the output shaft, a retainer mounted on the casing below the lower bearing, and an oil seal fitted around the retainer and normally held in engagement with an outer periphery of the sealing collar. The oil seal has a lower face side lip portion formed thereon, and a disk-shaped plate is mounted on an outer periphery of the sealing collar such that the lower face side lip portion of the oil seal is normally held in contact with an upper face of the disk-shaped plate to prevent oil from entering the swing reduction gear drive.

Abstract: A hand operated propulsion drive mechanism for a wheelchair which has a driven gear (20) attached to the wheel of the wheelchair. A drive gear (26) is rotatably mounted to a support arm bracket (30) and intermeshes teeth with the driven gear. A hand crank (36) with a handle (40) allows a disabled person to propel the wheelchair by rotating the handle. A protective disc (38) covers the drive gear and also becomes part of the hand crank further allowing adjustment of the rotational radius of the drive using a slot (46) and removable mounting hardware. A second embodiment adds additional drive gears (26') to relocate the hand crank at different positions and the support arm bracket (30') is wide enough to cover the gears.

Abstract: A retrofitable attachment for easily and quickly converting most conventional wheelchairs into self-propelled, steerable wheelchairs. The invention includes a drive arrangement easily attachable to one of the rear wheels of the wheelchair, an elongated arm unit easily attachable adjacent one of the front casters of the wheelchair, and a connecting member extending between the arm and rear drive arrangement. The elongated arm unit has an outer drive arm portion and an inner steering arm portion, both of which are mounted for pivotal movement together about a first axis to activate the drive arrangement. Additionally, the occupant of the wheelchair can twist or rotate the inner steering arm position about a second axis to steer the front caster of the wheelchair. The steering arrangement further includes a unique gearing system that eliminates dead spots in the steering and allows for easy and uniform manipulation of the steering arm and front caster.

Abstract: A drive mechanism for a paper machine controlled deflection roll or the like having a tubular roll shell driven by a ring gear with driving pinions driving the ring gear and each of the pinions mounted on support shafts with the support shafts carrying planetary gears driven by a sun gear. The sun gear is carried on a power input shaft mounted in vertical slides. The planetary gears are horizontal of the sun gear so that the sun gear can shift and be self-positionable to equalize the load on the gear teeth as the sun gear drives the planetary gears with a thrust bearing on the shaft and helical teeth between the sun gear and the planetary gears.

Abstract: A driving device without chain for bicycle comprises a driving wheel mounted to a crank shaft, a rear gear mounted to a wheel hub for mounting a rear wheel of the bicycle, an input gear coupled with the driving wheel by means of an interconnecting link and a gear set having two identical gears respectively engaging the rear gear and the input gear.

Abstract: It is desirable to be able to lift, lower and lock a toilet seat assembly in position without any hands-on interaction with the toilet seat assembly. In order to accomplish this objective the invention incorporates a selection of devices having additional mechanical advantage when pivoting the seat assembly. In one preferred embodiment of the invention, a cable-operated foot lever is used in combination with a crank portion on the hinge of the toilet seat. In another preferred embodiment of the invention, a system of planetary gears is used in the lever and/or the hinge assembly.

Abstract: An air compressor, which is embodied as a single or multi-cylinder/piston compressor, and which is driven by gear wheels. The drive gear or pinion of the air compressor is disposed on the air compressor crankshaft and meshes with a gear wheel on the camshaft of an internal combustion engine. Provided on the periphery of the air compressor pinion is, for a single cylinder/piston compressor, one interval having an enlarged tooth gauge, and for a multi-cylinder/piston compressor, several such intervals, the number of which corresponds to the number of times the tangential force passes through zero during one air compressor crankshaft revolution, with the centers of the intervals being coordinated with the respective top dead center position of the air compressor piston.