Abstract: A first member defines a plurality of depressions such as V-shaped notches therein and is positioned so that the V-shaped notches are adjacent another plurality of similar notches defined by a second member. The spacing of the recesses in the second member is different than the spacing of recesses in the first member. A movable ball is received in each of the recesses of the first member. A cam is positioned to alternately force one of the balls into engagement between partially aligned recesses on the first and second members forcing relative movement between the members, positioning a load connected thereto.

Abstract: A novel torque exchange coupling for transmitting rotational mechanical power is described. The coupling includes a torque receiving member, a torque transmitting member and means for conveying rotational mechanical power between the torque transmitting and receiving members. Typically, the torque receiving member is a housing, a cam or other suitable structure which has a surface comprising a circuitous track. The linear circumference of the track is undulant with respect to its axis of rotation. The torque transmitting member is any suitable rotatable mounting means such as a rotor which is positioned in a rotational power conveying relationship with the undulant track of the torque receiving member. Alternatively, the function of the torque receiving and torque transmitting members can be reversed.

Abstract: In computerized tomographic apparatus having an intermittent rotational motion the scanning time can be reduced by increasing the rotation speed. However this can result in excessive forces being transmitted to the stationary mainframe of the equipment. The invention reduces that problem by balancing the forces of rotation at least in part by appropriately placed counter masses. In one embodiment the counter masses rotate and properly balance the forces. In another embodiment they move linearly and delay the application of the forces to the mainframe and transmit the delayed forces over a longer period.

Abstract: A cam drive system having parallel input and output shafts and means for rotating the input shaft includes a plurality of cams coupled at intervals around the periphery of the input shaft. Each cam utilizes a camming surface which incorporates a radially outwardly sweeping step section and a constant radius dwell section positioned adjacent to each step section. A plurality of cam followers are coupled at intervals around the periphery of the output shaft. Each cam follower is aligned to engage a single one of the cams. The present invention converts the continuous rotation of the input shaft into intermittant displacements of the output shaft.

Abstract: A single revolution mechanism is disclosed in which a feed roll is mounted on a print lever which is attached rotatably to a pivot. By rotating the lever, the feed roll can be brought into contact with an external driving shaft. The feed roll is coupled to a ratchet mechanism comprising a pawl and ratchet. The pawl is engaged with a spring urged pressure lever so that when the feed roll is driven, the ratchet pushes itself away from the second lever to latch the print lever and roll in the operative position during a full revolution. After performing the revolution, the print lever reengages the ratchet to unlatch the device from the driving roll in preparation for another actuation.

Abstract: A variable speed control apparatus is provided for operating a work member in a first mode at a given uninterrupted speed and in a second mode intermittently in incremental movements. The apparatus comprises a drive motor, actuator means drivingly associated with the motor, coupling means actuable into and out of driving relation with the motor and control means associated with the work member. The work member is operated in the first mode in response to actuation of the coupling means into driving relation with the motor and, in response to actuation of the coupling means out of driving relation with the motor, the actuator means operates the control means for operating the work member in the second mode.

Abstract: Method and apparatus for cutting tenons in the ends of workpieces in which the workpiece is advanced on a rectilinear path, one or more cutting tools are reciprocated on a transverse rectilinear path which intersects the ends of the workpieces and the speed of advance of the workpieces and the speed of reciprocation of the cutting tools are varied so that the cutting tools have an effective undulating cutting path with respect to the workpieces, thus forming a series of spaced tenons thereon.

Abstract: A windscreen wiper transmission mechanism comprises a driving wheel with a shaft eccentrically positioned on the wheel. A connecting link for connecting the mechanism to a member for driving a corresponding wiper blade, an eccentric bearing and a rotor are mounted on the shaft. A roller, complementary apertures in the eccentric bearing and rotor and a complementary recess in the link enable the eccentric bearing and link to be connected positively together so that the link can be positively driven from a position corresponding to a park position to a position corresponding to a wipe position of the wiper blade and the rotor and eccentric bearing to be positively connected together to allow repeated oscillation of the link in the wipe position.

Abstract: An integral revolution clutch is provided wherein a motor rotates a drive pulley which continuously drives an idler pulley through a belt. A drive shaft is provided with a segment of a circle thereon connectable to the idler pulley by means of the belt. A spring means urges the segment into contact with the belt and a stop means normally prevents contact. When the stop means is deactivated, the segment is drawn between the belt and the pulley, causing the shaft on which the segment is located to make an integral number of revolutions until the stop means is restored. In a similar manner, power can be taken directly from the drive pulley.

Abstract: A cyclically operable clutch in which first and second driven gears are provided with interrupted gear tooth sections normally located opposite a motor driven drive gear. The second gear is operably connected to a cyclically operable driven mechanism and the first gear is spring urged to rotate relative to the second gear. A latch normally maintains the first gear out of mesh with the drive gear. Upon release of the latch, the first gear is spring advanced into mesh with the drive gear and a lost motion connection between the driven gears transmits rotation to the second gear to advance the latter into mesh with the drive gear.

Abstract: A pilgrim step indexing mechanism provided with oppositely facing toothed ratchet wheels of the same pitch is associated with a single indexing pawl and an associated detent spring which not only detentably holds the ratchet wheels but also biases the indexing pawl to engage the ratchet wheels. The indexing pawl has two teeth one of which engages one of the ratchet wheels during a reverse stroke of the pawl to reverse feed both ratchets one increment and during a forward stroke of the pawl to advance both ratchets two increments. The ratchet wheels may be connected with a platen of a printer whereby a line of printwork, after printing, will be positioned two line spaces above the printing line for easy viewing.

Abstract: A driving mechanism for a day and date calendar device comprising two Maltese crosses from which one activates the display of the days and the other the display of the dates. One of said Maltese crosses includes a magnetic clutch serving as disconnecting-gear when the date indication only is changed.

Abstract: An intermittent drive for a single-element printing typewriter, calculator or similar machine. The drive comprises a drive shaft couplable via a cycle clutch to a driven shaft and a governor disposed on the driven shaft to couple it with and maintain it at the same speed as the drive shaft during the clutch cycle. The governor comprises a friction wheel having a generally circular cross-section provided with flattened portions. During the clutch cycle, when the clutch engages the driven shaft, the friction wheel contacts a roll fixed to the drive shaft preventing the driven shaft from leading the drive shaft in response to reflected forces. At the end of the clutch cycle, when the clutch is disengaged, the friction wheel has rotated so that a flattened portion of the friction wheel faces the roll, and driven shaft is free from the rotation of the drive shaft.

Abstract: An apparatus for supplying a granular material particularly a toner in a copying apparatus, comprises a material container which has a cylindrical interior wall with a discharge opening above the bottom of the wall on one side thereof. A rotatable scooping member in the form of a wire member having an elongated portion extending substantially parallel to and closely spaced from the interior wall along the longitudinal axis of the container rotates in the container and causes an agitation of the material so that it remains uniform and does not adhere to a wall of the container and in addition during its rotation it discharges a portion of the material outwardly through the discharge opening. The rotatable movement of the rotatable scooping member is effected through a driving transmission which includes a rotatable drive member having a leaf spring secured at its one end thereto and which projects radially outwardly.

Abstract: A motion-transformer suitable for use with a small printing machine utilizes a trigger mechanism in combination with a rotating drum and slidable members to convert the rotation of the drum into linear motion. The linear motion provides for intermittent advancement of paper on which printing is to be carried out.