Abstract: An electromechanical-hydraulic piston actuator providing pressurized pressure medium for a brake system of a vehicle, including an electric motor having a stator and a rotor, a rotation-translation mechanism driven by the electric motor and which has a rotatable threaded nut and a threaded spindle prevented from rotating and displaceable in its axial direction, a piston coupled with the threaded spindle in the axial direction thereof, a hydraulic cylinder having a hydraulic chamber filled with pressure medium into which the piston is displaceable from a rear piston position towards a forward piston position to pressurize the pressure medium and/or expel it from the chamber. A hydraulic connection is connected to the chamber via which pressure medium can be expelled from the chamber. An isolation device is provided for the piston-travel-controlled isolation of the rotational coupling between the rotor of the electric motor and the threaded nut.

Abstract: A puncture repair liquid injection method injects puncture repair liquid into a tire by using a puncture repair liquid injection device provided with a container having a liquid containing portion containing a puncture repair liquid, along with an outlet for discharging the puncture repair liquid, and an inlet for introducing compressed air; an injection hose connected between a tire valve of a wheel mounted on a tire and the outlet of the container; and a compressor having a pressure adjuster for selecting an air pressure. The method further comprises connecting the injection hose between the tire valve and the outlet of the container, connecting the compressor to the inlet of the container, selecting a reduced air pressure as a pressurizing force by the compressor by an operation of the pressure adjuster, and injecting the puncture repair liquid into the tire by pressurizing the container interior.

Abstract: A remote regulator adjustment tool that can be used to adjust an output pressure of a remote regulator. The remote regulator adjustment tool comprises a housing defining a first bore extending therethrough, an adjustor piston movably disposed within the first bore, and an adjustment knob attached to the adjustor piston.

Abstract: A manual pulse generating device is equipped with a rotatable dial, a pulse generating unit configured to generate drive pulses for commanding axial movement of a machine tool in accordance with an amount of rotation of the dial, and a casing having the dial disposed on a surface of the casing and accommodating the pulse generating unit in the interior thereof. When the dial is pressed toward the casing, the pulse generating unit enables the axial movement in accordance with the drive pulses.

Abstract: A control knob assembly to control an operation of an appliance comprises a skirt adapted to engage the appliance. The skirt has a side wall, and a front face which in use will face away from the appliance. The assembly has a knob adapted to engage with the skirt, the knob having a side wall, the knob being adapted to move axially relative to the skirt. A spring is located between the knob and the skirt, to bias the knob and the skirt away from each other. The skirt and/or the knob has a spring retaining means adapted to retain the spring.

Abstract: A steering actuator including a motor having a rotor including opposing input and output ends. A driven gear is supported on the input end of the rotor shaft for rotation with the rotor shaft and the output end provides a rotational output of the steering actuator. An override shaft is supported for rotation parallel to the rotor and a drive gear is supported for rotation with the override shaft wherein the drive gear is longitudinally movable relative to the driven gear to engage and disengage the drive gear relative to the driven gear. A coupling structure is provided on an end of the override shaft for detachable engagement with an auxiliary driver. The auxiliary driver provides a rotational driving force to the override shaft for effecting rotation of the rotor shaft.

Abstract: A mining machine including a frame, a motor, a drive shaft having a first end and a distal end, a driven component coupled to the drive shaft at the distal end, and a connector assembly between the motor and the drive shaft. The connector assembly including a connection mechanism operable to drivingly connect the motor and the drive shaft, and an adjustment mechanism operable to adjust the connection mechanism between a connected condition, in which the connection mechanism drivingly connects the motor and the drive shaft, and a disconnected condition, in which the driving connection between the motor and the drive shaft is disengaged, the adjustment mechanism including an actuator pivotable about an axis between a connected position corresponding to the connected condition of the adjustment mechanism and a disconnected position corresponding to the disconnected condition of the adjustment mechanism, the actuator being axially fixed relative to the frame.

Abstract: The invention relates to a mechanical sprung anti-backoff device, capable of fixedly immobilizing or releasing a manual control handwheel (4) and a motor acting on one and the same rotation shaft, comprising a cylindrical spring (7, 16), a cylinder (9, 17) mounted so as to rotate on the rotation shaft, the spring being able to rotate with the cylinder, turns of the spring being in contact with a surface of the cylinder and its ends being capable of coming into contact with the handwheel. The ends of the spring (7, 16) are curved inward or outward, the handwheel (4) may act on the curve of one or other of the ends of the spring (7, 16), and the rotation of the spring (7, 16) is limited by a stop acting against one or other of the ends of the spring. Application can be to manual control and motorized control valves, for example on fluid pipes.

Abstract: A drive system for an imaging device having a curved arm. The drive system includes a carrier that engages the curved arm such that the arm can be moved along the carrier. The drive system includes a belt extending through the carrier and a motor, a drive shaft rotatably driven by the motor, and a drive pulley coupleable to the drive shaft through a clutch mechanism. The pulley engages the belt to move the curved arm relative to the carrier. The clutch mechanism is movable between an engaged position, at which the drive shaft is coupled to the drive pulley such that the motor moves the drive pulley, and a disengaged position, at which the drive shaft is uncoupled from the drive pulley so that the curved arm can be manually moved relative to the carrier. A clutch release mechanism moves the clutch between its engaged and disengaged positions.

Abstract: A drive system for an imaging device having a curved arm. The drive system includes a carrier that engages the curved arm such that the arm can be moved along the carrier. The drive system includes a belt extending through the carrier and a motor, a drive shaft rotatably driven by the motor, and a drive pulley coupleable to the drive shaft through a clutch mechanism. The pulley engages the belt to move the curved arm relative to the carrier. The clutch mechanism is movable between an engaged position, at which the drive shaft is coupled to the drive pulley such that the motor moves the drive pulley, and a disengaged position, at which the drive shaft is uncoupled from the drive pulley so that the curved arm can be manually moved relative to the carrier. A clutch release mechanism moves the clutch between its engaged and disengaged positions.

Abstract: In an electric power tool having a clutch ring for adjusting a fastening torque, an outer member 3 which are lower in hardness than a base member 2 of the clutch ring 1 has a plurality of projections discontinuously arranged on the outer peripheral face of the base member 2.

Abstract: A drive which operates on both sides for use in adjusting devices, such as motor vehicle seats, includes a drive lever, a drive wheel, and coupling elements. The pivotally mounted drive lever is for, starting from an initial position, effecting a turning movement in one direction or the other as desired. The drive wheel is turned when the drive lever is moved out of the initial position. The coupling elements are arranged on the drive lever and have coupling areas for transmitting a turning movement onto the drive wheel. In order to transmit a turning movement, the coupling element can be coupled to the drive wheel via at least one positive locking element and by at least one elastic element.

Abstract: A toothed coupling for tracked vehicles is provided having a coupling sleeve with internal toothing in engagement with one externally toothed gear and capable of engagement with another externally toothed gear. The toothed coupling is axially displaceable and fixable at defined positions. The coupling sleeve includes a flange part of the coupling sleeve extending radially inward and a spindle connected to the flange part and arranged coaxially with the coupling sleeve for rotating the coupling sleeve about the axis of the coupling sleeve. A spindle nut is arranged on the spindle with a blocking part on one end of the spindle. A tool for engaging the blocking part is also provided where removal of the tool from the blocking part is possible only at defined axial positions of the spindle.

Abstract: A hub clutch mechanism wherein actuation of the clutch ring movement is provided by an over-center spring. A first spring portion is secured to the clutch ring and a second spring portion is movably secured at the clutch ring center. The second spring portion is offset axially from the first spring portion and biases the clutch ring away from the first spring portion. Stops restrict movement of the first and second spring portions which enables movable positioning of said second spring portion from one side to the other of said first spring portion and thereby urging reverse axial movement of the clutch ring.

Abstract: A hoist is a hoisting device wherein a pressure receiving member 6 rigidly secured to a drive shaft 5 is rotated by a press drive member 7 through a reverse rotation stop ring 10 and a pair of friction members 8,9 disposed on both sides of said stop ring. The member 7 is formed with a spring-loading hole 71 opening at the axially base side for accepting the tip 13d of a left hand coil spring 13 and a second engaging groove 7e opening at the axially base side extending radially outwardly. The groove 7e is inclined in the wind-down direction as it approaches the axially forward surface. The angle .alpha. formed between the wind-down directional inclined surface 7k of said groove 7e and the axially backward surface 7j of said member 7 is an acute angle.

Abstract: A child proof handle for a bathtub faucet includes a substantially cylindrical inner handle member having a centrally located bore for receiving the faucet valve stem and a pair of diametrically opposed passageways. The device also includes an outer handle member having an open end in communication with a hollow portion and a substantially centrally disposed bore. Received within the bores on the inner and outer handle members is an elongated bolt that secures the handle members to the valve stem. A spring is disposed between the inner and outer handle members for biasing the outer handle member away from the inner handle member. The outer handle member further includes a pair of diametrically opposed pins received within the hollow portion spaced and dimensioned to be received within the passageways on the inner handle member.

Abstract: A wheel motor disconnect includes a rotatable plate with sized apertures including locking detents. A depressor pin extends perpendicularly from the plate. The apertures are received over shouldered spacers or guides which are connected to the wheel hub. In the drive position, the plate is located at the outermost ends of the spacers, and the pin is offset from the spring-loaded drive shaft to allow the shaft to drivingly engage a reduction gear arrangement. To disconnect the drive, the operator urges the plate axially inwardly against the bias of the drive shaft so that the apertures slide inwardly along the spacers to move the shaft out of driving relationship with the reduction gear arrangement. The operator then rotates the plate in a first direction so smaller apertures move into the shouldered area and prevent the plate from moving axially outwardly.

Abstract: A lever-type hoist comprising a pressure receiving member 6, a press drive member 7 adapted to press-drive the pressure receiving member 6 through friction members 8, 9 and a reverse rotation stop ring 10, and a coil spring 13 interposed between the pressure receiving member and press-drive member, the base engaging portion 13b of coil spring 13 being engaged by an engaging groove 6d of pressure receiving member and the tip engaging portion of coil spring 13 being engaged by an engaging surface 7k of press-drive member, with an inclined surface 7h formed in the wind-up side of the engaging surface 7k.

Abstract: A valve safety handle having a handle slidably attached to a valve stem. The handle incorporates a handle female spline sized to engage a valve stem male spline. The handle female spline is urged out of engagement with the valve stem male spline by means of a spring trapped between the handle and valve stem. The valve stem also has a valve stem key sized to slide into a handle lower recess keyway. Thus the handle may engage with the valve stem only after the handle has been rotated relative to the valve stem until the valve stem key aligns with the handle lower recess keyway, and the handle has then been translated relative to the valve stem against the spring until the handle female spline is engaged with the valve stem male spline. An alternate embodiment incorporates an adapter having an adapter female spline sized to engage a standard plumbing valve stem male spline.

Abstract: A bi-directional clutch particularly suited for hand-powered applications where motion is imparted to a pulley. The device includes a pair of wedge-shaped circular plates each of which is urged to a disengaged or idle position under the force of gravity when no motion is being transmitted. Imparted rotational movement in either direction brings an angled surface of a driving plate into contact with a corresponding angled surface of a driven plate which motion pushes an opposite surface of the driven plate into contact with a side surface of the pulley for transmitting corrresponding rotation.

Abstract: The free-running operation of a load sheave of a chain lever hoist is assured by an assist mechanism that keeps the relative position between a hub and a spindle of the hoist at a brake inactive position, when the screwing control position of the hub relative to the spindle has been shifted from a winding operation position to a free-running operation position. operator can easily switch the hoist to the free-running operation made by slightly turning a hub knob and a spindle knob by hand. Such an operation eliminates steps such as holding the chain by hand, or turning the spindle while the hoist lever is engaged with the hub. The above operation frees an operator from getting his hands dirty with the chain, and permits an immediate switching to the free-running operation. The use of indicators allows the operator to recognize the free-running operation setting at a glance.

Abstract: In a lever type hoist an operation handle (18) is provided between a stopper (17) provided at the axial end portion of a driving shaft (5) and a driving member (8) screwed on the driving shaft (5) so as to be movable in the axial direction but non-rotatable relatively to the driving shaft (5). A spring (19) for energizing the operation handle (18) toward the driving member (8) is provided to bring inclined surface (31a) of the engaging projection (31) provided on the operation handle (18) into elastic contact with an engaging stepped portion (37) of the driving member (8) during the time when the mechanical brake (13) is being operated, whereby the driving member (8) can be prevented from being reversely rotated while being accompanied by a returning operation of the operation lever (16) by the engaging resistance of a feed click (14) during the time when a hoist and traction operation is being conducted under the no-load condition.

Abstract: A lever operated tool, such as a chain hoist, is provided with a free wheel mechanism allowing a lift wheel to be selectively disconnected relative to a driving gear in response to rotations of a manual control knob. The knob controls sliding movement of a driven gear mounted for rotation with the lift wheel between first and second positions in which it is engaged with and removed from engagement with the driving gear.

Abstract: A device includes a driven member arranged to be moved to adjusted positions by a driving member. The driving and driven members are arranged to rotate about a common axis of rotation. The driving member is axially movable between first and second axial positions. In its first axial position, the driving member transmits rotational movement to the driven member in both directions of rotation, and the driven member is locked against rotation relative to the driving member. When the driving member is in its second axial position, the driven member is able to rotate relative to the driving member in both directions of rotation. The driven member can be connected to a seat back of an automobile seat, and the driving member can comprise a hand wheel for effecting adjustment of the seat back when the hand wheel is in its first axial position. The seat back is freely movable relative to the hand wheel when the hand wheel is in its second axial position.

Abstract: A hub lock device for converting a vehicle between four-wheel and two-wheel drive, the hub lock being actuated by automatic actuation or manual actuation. A sliding clutch ring that engages and disengages the wheel and axle is trapped in a cage. An extender bar from the cage has a hook end that hooks over the edge of a nut. The nut is moved between inner and outer positions by a manual dial. In the outer position, the nut forces the cage, through engagement of the hook end, to the position whereat the clutch ring is urged to interlock the axle and wheel. In the inner position the nut releases the cage, i.e., the hook can extend between an inner and outer position, to permit automatic actuation. The automatic actuation includes cam actuation wherein the spindle nut provides the cam actuator and brake surface for secondary cam actuation.

Abstract: The present invention entails a safety control knob for actuating a valve stem of a water valve such as typically found in a hot water line. The safety control knob includes a control knob rotatively journaled on a valve stem and movable thereon between an inoperative and an operative position. In the inoperative position the control knob is effective to simply free-wheel around the valve stem without actually turning the valve stem. In an operative position, the control knob assumes a position engaged with a collar or other member that is keyed to the valve stem. In the engaged position, the control knob is operative to turn and actuate the valve stem.

Abstract: Apparatus for use with a printer which has a pair of tractors that engage sprocket holes in the paper to adjust for different paper widths or to adjust the lateral position of the paper. The apparatus comprises a pair of coaxial lead screws, one attached to a rotatable shaft and the second rotatable on the shaft adjacent to and relative to the one lead screw. One tractor is coupled to each lead screw. Rotation of the one lead screw is obtained by a knob keyed to an end of the rotatable shaft. Rotation of the second lead screw is prevented during rotation of the knob by spring loaded fingers with detent elements engageable with detention gearing on the end of the second lead screw. Rotation of both screws is obtained by rotation and axial movement of the knob on the shaft so that a cam surface on the knob engages cams of the spring fingers to disengage detent elements from the detention gearing and drive gearing on the knob engages drive gearing on the second lead screw.

Abstract: A knob for operating a fader as an electronic device of a car stereo is rotatably and axially slidably mounted on a grille detachably attached to a car stereo body. A wall of the car stereo body facing the grille when attached thereto, has an opening through which the knob passes. A manually rotated operating shaft of the fader is disposed inside the body of the car stereo behind the opening. When the knob is pushed into the body through the opening, the knob is connected with the operating shaft of the fader.

Abstract: A railway car brake mechanism is comprised of a hand wheel on a shaft and a housing with a rotatable gear wheel and square chain winding disposed within. A ratchet wheel rotatable with the hand wheel shaft and a freely rotatable pinion which engages the gear wheel is also provided. The rotatable pinion has a flange with a disengageable driving connection with the gear wheel and a disengageable connection between flange and ratchet wheel. The main gear wheel and chain winding drum comprise a main gear wheel assembly. The assembly is attached by a chain end link through an interconnection of the main gear wheel and outwardly extending section of the chain winding drum. To prevent kinking or slippage of the chain, a spiral groove is formed in the square chain drum. The groove enables the chain to be wound within the drum with alternate links seated on a concave surface and intermediate links, which rest on the outer surface of the drum, to be at right angles to the aforementioned alternate links.

Abstract: The valve comprises a rotating operating wheel (32) acting on a closing element (20) inside the body (10) of the valve. In order to enable the wheel (32) to be operated easily and at the same time to prevent accidental opening, the wheel (32) is connected to the closing element via a ratchet system (34) with sawteeth which are oriented so as to prevent the closing element (20) from opening without prior axial displacement of the wheel (32) counter to the action of a spring (44).

Abstract: A locking device for use with a gas flow distribution device to be connected to a source of gas under pressure. The device has a yoke for securement to the source and a fastening screw threaded in the yoke for securing the device to the gas source. The locking screw has a tee-shaped handle. The locking device has a collar including a sleeve defining opposed openings for engagement of the yoke to permit longitudinal movement relative to the yoke but substantially prevents rotation of the sleeve relative to the yoke. The collar has a yoke-remote portion including a plurality of handle-engaging recesses. A spring biases the collar outwardly from the yoke into locking engagement with the handle for preventing unintended unfastening of the screw.

Abstract: A clutch mechanism in a gear transmission. A first gear is fixed to one of input and output shaft disposed in parallel with each other, while a second gear engaging with the first gear is fitted on the other. The second gear is rotatable and axially slidable relative to the other shaft, and two groups of splines are formed in the fitting surfaces of the second gear and the other shaft and are capable of engaging with and disengaging from each other in response to the axial sliding of the second gear. With this mechanism, the transmission of rotation of the input shaft to the output shaft is established and interrupted by axially moving the second gear. Also disclosed is another clutch mechanism in a gear transmission. A second gear is loosely fitted on the other shaft, while a third gear is fitted on the other shaft in such a manner as to be prevented from rotating relative to the other shaft but be axially slidable relative thereto.

Abstract: A free wheel hub clutch for a drive shaft includes an outer casing, an inner sleeve in the casing for connection to the drive shaft, a slidable clutch in the casing for movement between a lock position wherein the clutch is connected therewith, and a free position wherein the clutch is disconnected from the inner sleeve for free rotation with respect thereto. The slidable clutch selectively and alternatively moves the clutch between the lock position and the free position, either mannually or remotely.

Abstract: A hub clutch is operable as an automatic hub clutch and as a manual hub clutch, and includes a hollow housing secured to a wheel hub, the inner circumference of which is provided with a spline, and on the outside end surface of which an opening is defined; a manually operable knob rotatably mounted in the opening of the housing and provided with a boss section having an inclined cam surface; a drive gear fixed to a drive shaft at the extreme end thereof, and provided with a spline and a gear section; a ring clutch supported in an axially transferable manual on the spline and which is engaged with the gear section on the circumference of the drive gear when displaced outwardly in the axial direction; a retainer rotating integrally with the housing and engageable with the cam surface of the knob; a return spring extending between either the retainer and the drive gear or the retainer and the housing for urging the retainer and the ring clutch inwardly in the axial direction; a shift spring extending between the

Abstract: A hub clutch used for a four-wheel driving free-wheel device in which, when a knob for manual operation and mounted on a casing is set to an automatic position, a pawl portion of a retainer becomes disengaged with a cam surface defined by a boss portion of the knob so that the device operates in the automatic condition, while when the knob is rotated in a manual lock direction, the pawl portion is engaged by the cam surface of the knob and is cammed to a lock position. When the pawl portion is in the lock position, the device assumes a manually locked state so that a drive gear and a clutch ring are maintained in an engaged condition with each other and stationary system members are separated from rotating system members. Accordingly, no contact force is applied to stationary system members when in the manually locked state.

Abstract: A hub mechanism for four wheel drive vehicles. Movement of the clutch ring into and out of position for interengaging the pinion of the axle end and a housing portion of the wheel hub, is provided by a pair of opposed spring members. The first spring member provides continuous urging for disengagement. A second spring member is coupled to a camming mechanism that is activated by a manually operated dial. Turning the dial physically moves the second spring member relative to the clutch ring. In a retracted position the strong spring member is backed away from the clutch ring to permit disengagement. Opposite dial turning moves the strong spring member for urging engagement of the clutch ring with the pinion.

Abstract: A motorized drive attachment for rotating a rotatable control shaft in a telescope. The attachment includes a motor within a housing, and a coupler on the output shaft of the motor interiorly lined with an O-ring. A snap-on bracket, secured to the housing detachably clamps onto a frame portion of the telescope, and in this position holds the attachment in place with the coupler providing a direct drive to the control shaft. The O-ring acts as a slip clutch when the control shaft is operated manually.

Abstract: A clutch to permit engagement and disengagement of a splined axle with a power drive means which has an inner axle hub, internally splined to engage with said axle and externally splined, and a body with internal ridges and grooves and external grooves and ridges connectable to a power source, comprising a clutch ring having exterior ridges and grooves, interior ridges and grooves and a plurality of rearwardly extending ramps; wherein said exterior ridges and grooves are engaged with said body internal ridges and grooves; a movable control body having a plurality of forwardly extending leaf springs registerable with said ramps; and a spring forward of said clutch ring; whereby rotation of said body causes said clutch ring to move forward so that its interior ridges and grooves engage the inner axle hub while reverse rotation causes the clutch ring to move rearward so as to disengage.

Abstract: A valve actuator control system, although suitable for many control functions, is especially adapted for remote control of plug-type valves utilizes a unique configuration providing a unitary explosion-proof container to house all electrical components and also providing a manifold assembly that is adapted for either a hydraulic or pneumatic actuator motor with relatively minor modification. The manifold assembly is designed to accept all utilized control valves, relief valves, check valves, flow control devices, and manually operable override controls thereby simplifying installation and maintenance and reducing attendent costs. Three independent solenoid valves, responsive to mechanical feedback provided through the plug-valve's operating stem and integrated into the manifold within the explosion-proof container, provide for actuator motor control including a novel dual speed capability for enhancing plug-valve performance while precluding costly premature wear.

Abstract: A shifting coupling which is preferably provided for the travel mechanisms of overhead conveyors, and which operates in a positively engaging manner counter to a spring which acts in the disengagement direction. The coupling projections or engaging members, which are provided on a coupling flange, are controlled with the aid of two sleeves which are movable relative to one another. Those ends of the sleeves which butt against one another are provided with oppositely extending conical surfaces. Control balls can be pressed into the wedge-shaped recess which results between the two conical surfaces. The control balls press the two sleeves apart in order to engage the coupling. A control sleeve, which is provided with inner conical and annular surfaces, serves for the radial movement of the control balls. During the engagement process, the control sleeve is resiliently prestressed in such a direction that the conical surface thereof contacts the control balls in the direction of coupling engagement.

Abstract: The present invention discloses a self-contained hub assembly that can be placed onto the drive axles of a vehicle to provide either free wheeling of the wheel mounted on the hub or driving from the vehicle drive axle. An axle assembly includes a mounting flange and a shaft. A hub, upon which the vehicle wheel is mounted, is rotatably mounted on the shaft. A cap is selectively locked onto the shaft to engage a drive member, thereby transmitting the driving force of the vehicle axle to the hub and to the wheel.

Abstract: A rotational-locking member such as an endless screw for actuating a sliding door by means of a nut is locked in position by rotational displacement of the nut and is unlocked by means of a device comprising a pulley coupled to the endless screw and rigidly fixed to a clutch-disk. A second clutch-disk slidably mounted on a square sleeve of a bevel-pinion can be rotated by means of a pair of bevel-pinions and a lever. A lug of the second disk cooperates with a helical groove of a stationary cam in order to subject the disk to a helical movement, the rotational motion component of which is imparted to the endless screw after engagement of the disks in order to unlock the screw.

Abstract: A bearing support and disconnect for a motor shaft is provided as a separate unit connected to the motor shaft. The unit includes a bearing mounted spindle and a shiftable member for bringing the spindle into and out of driving relation with the motor shaft.

Abstract: An actuator for moving the stem (9) of a gate valve or the like is provided with hydraulic means (15,17) for driving the stem (9) axially inward and a volute spring (7) for returning the stem axially outward upon loss or other removal of the control hydraulic pressure. A ball screw (49) and ball nut (54) assembly rotatable by a disengageable drive shaft (63) is operable to manually drive the stem (9) inward during periods of insufficient control pressure.

Abstract: A hub comprising a self contained unit that can be placed onto the drive axles of a vehicle that is to be towed periodically, and used to provide for free wheeling of the wheel mounted on the hub or, alternately driving from the vehicle drive axle to the hub when the vehicle is to be driven.

Abstract: A handle arrangement for a hot water tap or faucet which requires an axial and rotational movement of the handle in order to turn the tap "on" or a rotational movement only, in order to turn the tap "off". When applied to a hot water tap the handle arrangement provides a safety device against rotation by young children as the combination of movements is difficult or impossible for young children to overcome. The arrangement comprises a spindle member 11 which is attached to an existing tap spindle 18 by grub screws 19 and co-operates with a drive member 13 fixed to the handle to provide a ratchet arrangement between a drive member 13 and spindle member 11. The ratchet arrangement allows the tap to be turned off merely by rotation of the handle but does not engage when the tap is rotated in the direction to turn the tap on. A hexagonal protrusion 14 inside the handle co-operates with the handle member 11 to cause rotation of the handle when the handle is depressed axially inwardly.

Abstract: A tailstock attachment including a speed controllable motor for driving the feed screw of the tailstock to advance a tool mounted in the tailstock quill into a rotating workpiece. A motor driven pulley is engaged by clutch means which includes a handwheel which may be urged into pulley engagement or instantaneously disengaged therefrom by an over center lock. The lock is adjustable to compensate for clutch wear.

Abstract: A tuning shaft for use in switch type pushbutton tuners wherein a clutch shaft portion configured in a regular polygon in its section is formed integrally with the tuning shaft portion as extending from the front end of the tuning shaft portion.

Abstract: Disclosed is a clutch mechanism suitable for use in an electronic lock. The clutch mechanism requires minimal electronic current draw for operation by utilizing, in part, mechanical power applied to operate the lock to engage the clutch mechanism. A unique camming device in combination with a solenoid released interference shutter accomplishes the object of the invention.

Abstract: This auxiliary control device for manually and rotatably driving, for example in case of failure of the current supply system, a motor and reduction gear unit kinematically connected for example to a winding door or grille, a sectional door, or the like, comprises a pulley adapted when rotated to cause the axial movement of a sliding member through the medium of a cam device disposed across the pulley and the sliding member. This sliding member comprises on the one hand a set of dogs of a first half-coupling which are adapted to engage the dogs of another set rigid with the main driven shaft, and on the other hand noses adapted to engage guiding projections formed on a rotary braking member disposed coaxially to the pulley. When the dogs of the two sets engage each other the noses are fully disengaged from the guiding projections and thus the rotary braking member does not exert any antagonistic torque likely to counteract the actuation of the auxiliary control device.