Abstract: A clutch mechanism for selectively setting up or interrupting the delivery of a drive force in accordance with a direction and an amount of rotation of a shaft is disclosed. The mechanism includes a clutch gear rotated by the rotation of a motor. A slide cam is supported by a clutch shaft in such a manner as to be unrotatable relative to the shaft. Ratchet portions respectively provided on the clutch gear and slide cam are selectively coupled or uncoupled in accordance with the direction of rotation, thereby setting up or interrupting drive transmission. A cam portion is formed integrally with the slide cam and releases the ratchet portions when a pin is brought to a preselected position on a cam surface. A cam lever selectively moves the pin toward or away from the cam surface in accordance with the direction of rotation of the clutch gear. The drive source can be shared by a driveline for rotating a shaft to a preselected angular position and other drivelines.

Abstract: A device for actuating a system such as a clutch or a gearbox associated with an engine, particularly a motor vehicle engine, and comprising control element (26-31) and an actuation member (38). According to the invention, the device furthermore includes:a first shaft (4) rotationally driven by the engine;a second shaft (6) integral with the actuation member;coupling member (10, 13, 15, 16, 33) for coupling the second shaft to the first shaft under the action of the control element;a member (16, 32, 33; 48, 53) for uncoupling the second shaft from the first shaft after the second shaft has rotated through a predetermined angle; anda return spring (35) for returning the second shaft to its initial position after it has been uncoupled from the first shaft.

Abstract: A mechanical disconnect for the pedal operating rod of an attaching machine comprises a stationary trip slide having a downwardly inclined cam surface and a housing enclosing the trip slide and reciprocable thereon. The housing is connected to the clutch operating rod. The housing also includes a transverse trip spacer pin and a latch having a follower nose engaging the cam and a central L-shaped opening receiving the pin in the horizontal leg of the opening. A spring urges the latch toward the slide. When the pedal is depressed, the latch pulls down the housing so that the clutch activating pull down rod moves away from the clutch dog. Further downward movement of the pedal cams the latch away from the slide so that the spacer pin aligns with the vertical leg of the "L" permitting the housing to pop up and the pull down rod to engage a clutch dog.

Abstract: Non-slipping clutch disposed between the drive and transport mechanism and between the drive and control cylinder for triggering printing in franking machines, including a shaft, a locking wheel being mounted on the shaft and engaged by the drive, internal gearing having an odd number of teeth formed on the locking wheel, a bushing being disposed on the shaft and connectible to the transport mechanism and control cylinder, a locking gear disposed on the bushing opposite the locking wheel, teeth disposed on part of the periphery of the locking gear, two pawls being disposed in the locking gear and extended into the locking wheel for engaging the internal gearing, a lever rotatably disposed on the bushing adjacent the locking gear, fingers being integral with the lever and engageable with the pawls, a torsion spring for rotating the lever and fingers to push the pawls into the internal gearing and couple the locking wheel and locking gear, and an electro-magnetically controlled latch for preventing the lever fr

Abstract: An apparatus for reciprocating a piston that drives a tag pin through a hollow needle. The apparatus comprises a crank for oscillating an oscillating arm that reciprocates the piston; a cam for stopping a crank rotating motor when the oscillating arm oscillated by the crank returns to the home position; and a lever for rotating the cam to the motor starting position.

Abstract: A paper sheet feeding apparatus includes paper sheet feed rollers of friction type which are unidirectionally driven through a clutch mechanism provided between the paper sheet feed rollers and a platen of a printer to feed, one by one, paper sheets to the platen. The clutch mechanism establishes a coupling relation between them when the platen is driven in a direction in which the paper sheet is taken therein, until a front end portion of the paper sheet is taken therein and then the coupling relation is released by driving the platen in the reverse direction slightly while the front end portion is retracted from the platen.

Abstract: A document transport and printing apparatus which utilizes an associated clutch for use in printing and endorsing documents like checks at a printing station in the apparatus. The apparatus utilizes a single input shaft as an input member for the clutch and as an input member for a soft drive roller located at the printing station. The clutch utilizes a moveable sector portion which is moved between inactive and active positions to rotate an associated planetary member to provide a reduction in the rotary movement of the output member of the clutch when the sector portion is moved to the active position.

Abstract: An apparatus for controlling the transmission of power from a motor to a number of devices at selected times utilizes a single trigger mechanism which is operated at predetermined times in an operating cycle. The trigger mechanism controls a plurality of clutch mechanisms which transmit the power to the devices. The clutch mechanisms are locked against operation at times when they are not selected for operation.

Abstract: An assembly is provided for intermittently applying braking force to a rotating member of a machine, and for positively effecting the release thereof, to enhance performance and efficiency. The device is purely mechanical in nature, and is particularly adapted for installation on an automatic screw machine to control chatter and backlash while optimizing power utilization.

Abstract: An intermittent gear wheel lock mechanism includes major engaging portions and secondary engaging portions formed on one surface of an intermittent gear wheel and spaced by a predetermined distance. When an unlock lever is inserted, and a lock member is detached from the major engaging portion, the lock member is moved to the movement path of the secondary engaging portion while the unlock member remains in the inserted position, so that the lock member engages the secondary engaging portion which reaches there as the intermittent gear wheel rotates, and locks the intermittent gear wheel unrotatable. When the unlock lever returns to its original position, the lock member moves from the secondary engaging portion to the movement path of the major engaging portion and engages same to lock the intermittent gear wheel unrotatable.

Abstract: A clutch includes an inner clutch member of a cylindrical shape fixedly mounted on a shaft for rotation therewith, a bushing mounted on the inner clutch member, and an outer clutch member mounted on the bushing and driven for rotation at a predetermined speed, coupling elements carried by the bushing for coupling the inner and outer clutch members together, a first cam fixedly mounted on the shaft for rotation therewith, and a second cam pivotally mounted on the first cam and coupled to the bushing. An actuator initiates a revolution of the first cam, and it engages an acceleration section of a cam surface of the first cam at an initial portion of the revolution of the first cam to rotate it at a speed generally corresponding to a speed of rotation of the outer clutch member. The actuator engages a deceleration section of the cam surface at a final portion of the revolution to decelerate the speed of rotation of the first cam.

Abstract: A mechanism for machining an object, such as a key blank, to a desired shape at a plurality of successive positions in an axial direction of the object, includes a holder for the object. The holder is axially movable by means of a transfer mechanism with a rotatable shaft. There is a feeder member connected to the rotatable shaft and cooperating with a clutch device axially stationary relatively to the holder. Cooperating guiding surfaces are arranged to transmit to the holder an axial movement during a limited turning of the rotatable shaft. This turning is only a small portion of a full turn of the rotatable shaft. The machining of the object takes place as a continuous guided operation during such a turning of the rotatable shaft which is separate from the turning thereof causing the holder to move axially.

Abstract: The invention relates to a step drive assembly which includes a rotatable operating unit for operating a tool or knife or the like. The assembly has a change-over clutch for selectively connecting the operating unit to a continuously running motor or a brake. Control apparatus for the assembly includes a disk rotatable with the operating unit having teeth and spaces therebetween forming zones and a sensor unit for scanning the zones and outputting a pulse train. An evaluating circuit responsive to the pulse train outputs a positioned stop signal and an overload stop signal to effect a braking operation.

Abstract: Grinder-mixers include a material infeed device such as a feed table for feeding bales of hay to be ground up and incorporated into livestock feed rations. Due to varying bale density, the bale grinder sometimes lugs down when encountering a dense bale. However, if the feed table continues to feed bales during such a lug down, the grinder may clog and stall. A bypass apparatus solves the feed table problem by providing a bypass valve automatically operable to stop motion of the feed table when a lug down occurs.

Abstract: In a coupling arrangement for a textile machine, a drive shaft can be intermittently rotated and a connecting member encircles and is connected to the drive shaft by an eccentric hoop located between them. A coupling key is displaceable between a first coupling recess associated with the drive shaft and a second coupling recess associated with the connecting member. The coupling key is retained in the recesses by lead cams. A retaining key, independent from the coupling key, is supported by the eccentric hoop. The retaining key cooperates with a first retaining recess on the drive shaft or with a second retaining recess on the connecting member. The retaining key and/or the retaining recesses have control surfaces which provide the displacement of the retaining key when the drive shaft overtakes the eccentric hoop or the eccentric hoop overtakes the connecting member.

Abstract: An apparatus for applying a fastener to a fabric includes a pair of levers disposed pivotably one on each side of a stationary die for interlocking a punch driver and an actuator therefor in such a manner that the former can be activated by the latter only after the levers have been lowered while supporting the fabric horizontally thereon.

Abstract: Rotary input power is selectively coupled to an output shaft or the like by actuation of a plunger which forces a movable pin into a coupled relation between a member attached to the input drive and an arm attached to the output. A fixed wall establishes a guideway for the head of the pin until it reaches an aperture in the wall allowing pin extraction as by a spring, gravity or the like. Coupling is established by the pin passing through a hole in the arm attached to the output and a detent or transverse surface associated with the driven element. The device permits coupling a continuously rotating input to an output for one revolution although more or less than full revolutions are possible.

Abstract: The clutch contains a spring for pulling the arm of the control lever on the stop and an additional auxiliary spring connected with a roller. While the control lever strikes on the stop, the roller moves toward one lever arm so that in a further rotation of the parts, the roller (30) is lifted within a slot while additionally tensioning the auxiliary spring. While the tension of the main spring decreases, that of the auxiliary spring increases correspondingly, so that the control lever is held with sufficient tension on the stop and machine vibrations during the striking or operation can be made harmless or damped.

Abstract: A liquid fuel combustion apparatus comprises a combustion cylinder for supporting a wick to be vertically movable between a combustion position and an extinguished position, a rotating shaft connected to said wick for raising and lowering said wick, a driving motor, rotational force transmitting mechanism for rotating the shaft in one direction to thereby raise the wick to the combustion position, the rotational force transmitting mechanism being automatically disengaged from said rotating shaft when the wick arrives at the combustion position, a spring charged with the rotational force in the other direction of the rotating shaft as a result of the rotation of the rotating shaft in the one direction, holding mechanism for preventing the rotation of the rotating shaft in the other direction by the spring so as to hold the wick in the combustion position, and releasing mechanism for releasing the holding operation of said holding mechanism.

Abstract: A one revolution clutch assembly is provided which transmits the rotation of a normally rotating drive shaft to a driven rotating body through gears and which interrupts the rotation of the driven body when it has rotated through one revolution. The one revolution clutch assembly includes a drive gear mounted on the drive shaft and which meshes with a driven gear on the driven body. The driven gear is formed with a hiatus along part of its periphery, and when the hiatus is located opposite to the drive gear, the rotation of the driven gear is interrupted. The driven gear is maintained in this position where it ceases to rotate, by a cam mounted on the driven assembly and formed with a notch which is engaged by a movable piece of an electromagnetic plunger. A crank lever has its one end rotatably mounted on the driven assembly, and imparts a rotating force to the driven gear to cause a meshing engagement of the driven gear with the drive gear when the driven gear is located at said position.

Abstract: A single revolution clutch in a reduction gear in a franking machine is designed to avoid fraudulent operation and double cycling and for economical production by arranging a worm to drive a split worm wheel having a gap in each arcuate row of teeth respectively on the first and second worm wheel parts. Before operation, the worm rotates in the gaps. On release by a detent of a shoulder a spring brings a tooth into mesh with the worm which rotates the first worm wheel part until a lost-motion connection is engaged bringing the second worm wheel part into mesh with the worm to drive an output shaft. The detent is released by an electrical pulse then guided by a cam track to engage the shoulder arresting the first worm wheel part while the second part continues so as to stress the spring and return to the initial position with respect to the first part.

Abstract: A rotation shaft machine with a wedge coupling between a drive shaft and an eccentric device for the shaft movement, with which the wedge is mounted in a radially extending recess of an eccentric disc and in two coupling positions which lie diametrically opposite to one another according to a pattern is couplable in and decouplable from an axially extending groove of the drive shaft. The wedge has a groove which is open in the axial direction and at each coupling position there is arranged a switching rod, which is controllable according to the pattern, with a coupling member, the coupling member crossing into the groove of the wedge.

Abstract: A lost-motion drive mechanism is provided which is particularly, although not exclusively, adapted for use as a high speed transport for an X-ray film, or the like, in an X-ray camera. The drive mechanism includes an input shaft for coupling a drive motor to the drive shaft of the transport. Actuators are interposed between the input shaft and the drive shaft. As the input shaft is driven through one complete revolution (360.degree.) by the drive motor, the actuators cause the drive shaft to turn with an angular velocity which rises gradually from zero to a maximum for the first 180.degree. of rotation of the input shaft, and then with an angular velocity which decreases gradually from a maximum to zero for the next 180.degree. of rotation of the input shaft.

Abstract: Suction feet are arranged to pick up and feed a sheet from a stack and a blower is arranged to blow air against the edges of the sheets on the stack to separate the top sheet from the rest. A cam assembly driven through a novel one-rotation clutch moves a piston in a cylinder which is connected to both the feet and blower so that the piston is moved in one direction to supply pressurized air to the blower and subsequently in the opposite direction to apply suction to the suction feet. A cylindrical presser member is carried by each suction foot which extends past the suction foot to bend the top sheet during pickup and further aid in separating the top sheet from the lower sheets.

Abstract: The pawl is retracted from the intermittently rotatable input shaft via a controlled abutment and a spring biased lever-mounted or piston-mounted roller. The abutment serves to start retraction of the pawl while the spring biased roller presses against a non-circular surface of the cam plate on which the pawl is mounted to complete removal of the pawl from the recess. The cam plate also has one or more cam surfaces for resetting the abutment after the pawl has been engaged in the shaft.

Abstract: A control device for driver member comprises an intermittently movable driver member, a follower member adapted to follow the driver member for displacement, retention and return displacement, a control member for controlling the starting and stoppage of the movement of the driver member, and a first and a second signal for starting the movement of the driver member. The movement of the driver member may be started by the first signal to displace the follower member to bring about the retaining position, whereafter the movement of the driver member may be automatically stopped by the control member, and the movement of the driver member may be restarted by the second signal and at the position whereat the return displacement of the follower member is completed, the movement of the driver member may be automatically stopped by the control member.

Abstract: An operating device for an electric circuit breaker comprises a closing spring and a rotatable spring-controller mounted for rotation between first and second dead-center positions with respect to the spring. The spring is charged by transmitting rotational forces to the spring-controller through a pawl mounted on the spring controller and an abutment on a rotatable driving member. Cam means is provided for releasing the pawl from driven engagement with the abutment at the end of a spring-charging operation. Circuit-breaker closing is effected by allowing the spring quickly to discharge after a charging operation.Discharge of the spring carries the spring-controller into said second dead-center position and produces oscillations of the spring-controller immediately following such discharge. The cam means holds the pawl out of a collision path with respect to said abutment during such oscillations, even if such oscillations should carry the spring-controller through as much as 90.degree.

Abstract: A displacing means is used to move at least one guide bar by at least one needle space in order to remove the loops on a terry cloth towel material such as knitted on a warp knitting machine. The displacing device basically comprises a transfer means for driving a second pattern gear wheel from a conventional first set of gear wheels, a cam follower arrangement operatively associated with the second set of pattern chains; a clutch means actuated by the cam follower mechanism, another cam actuated by the clutch and a cam follower and linkage mechanism associated with the clutch cam for moving the guide bar in the direction of its normal motion by at least one additional needle space. The transfer means comprises first and second coaxially mounted gears which are driven by an idler gear mounted near the periphery of the circumference of the first set of pattern chain wheel.

Abstract: A device for feeding sheets to another machine, said device having conveying rollers continuously rotating at the same peripheral speed as the receiving rollers of the fed machine. Gripper devices reciprocate toward and away from the conveying rollers to pick up a sheet and accelerate it to the peripheral speed of the rollers. The gripper devices are disengageably coupled to the conveying rollers to be driven thereby and to be actuated in time sequence with the fed machine.

Abstract: A self-releasing pawl and ratchet clutch is described that is particularly suitable for use as a single revolution clutch in a self-processing camera. At the end of one revolution of the clutch, the pawl is uncoupled from the ratchet wheel by a translatable and pivotable clutch release finger. The finger is spring biased towards a first position and includes a ramp at one end thereof that is locatable in the path of the pawl to stop the pawl from further rotation with the ratchet wheel. In the process of stopping the pawl, the finger is translated from the first position and held by the pawl in a second position against the bias of the spring. After the pawl is unseated from its interdental seat on the ratchet wheel the finger is restored by the spring to the first position. An enlarged tooth formed on the ratchet wheel forces the pawl to be moved generally radially outwardly along the ramp so that the pawl is held away from the tips of the smaller teeth of the ratchet wheel.

Abstract: Single revolution clutch mechanisms are conventionally employed in machines such as punch presses and the like. Such clutches are usually provided with single stroke mechanisms so that an operator must release the "RUN" buttons before a subsequent cycle can be initiated. The present invention shows apparatus which prevents the initiation of a subsequent cycle of operation whenever the single stroke mechanism comes into operation. A latch is released upon such operation of the single stroke mechanism which prevents operation of the cycle-initiating means by the operator and requires the services of a maintenance man at the clutch mechanism to restore the clutch-iniatiating and single stroke mechanism to operating condition.

Abstract: A mechanism for driving a computer form web along a predetermined path includes a ratchet wheel having two sets of oppositely facing teeth, mounted on a support shaft for rotation. The wheel is driven in both clockwise and counter-clockwise directions. A drive gear in meshing engagement with a plurality of gears for driving the sprocket mechanism transporting the computer form web is also mounted on the support shaft for rotation. The gear is joined to a coupling plate also mounted on the support shaft for rotation thereon. The coupling plate includes first and second pawls which extend therefrom for cooperative engagement with the ratchet teeth sets, respectively. Pawl actuator arms also mounted on the coupling plate are movable to first and second positions and when in a first position engage the pawls to maintain the latter out of engagement with respective ratchet teeth sets. Pawl actuator arm engaging levers are mounted adjacent the pawl actuator arms and are movable to first and second positions.