Abstract: This invention relates to a reduction mechanism including two gear trains, of different speed reductions, for rotating one cam, both gear trains having different input gears but a same output gear, said input gears being rotatable by a step-up gear mounted on a pivotable lever and rotatable by a driving pinion coupled to a motor, a second pivotable lever having followers responsive to ramp means provided on said cam for suddenly pivoting said first lever through a spring linked to said two levers and thus moving said step-up gear into engagement with the input gear of one or the other of said two gear trains.

Abstract: A disengageable transmission device is provided in which a driving pinion is used to selectively drive a driven wheel via a wheel train mounted on pivotal lever. The fulcrum of the pivotal lever is positioned so as to minimize the rotational torque effects on the wheel train lever of the contact between the driving pinion and the wheel train and of the contact between the driven wheel and the wheel train. An energy escapement control device is also provided and the torque effects of this device on the wheel train lever are also limited by the positioning of the fulcrum of the lever.

Abstract: A communication set tuner has a control member which varies the tuning status of the set; a rotatable input member is provided for driving the control member; the driving connection between the input member and the control member is so designed that the input member may be positioned on the set in any one of a large plurality of available positions. Thus a single driving mechanism structure may be provided which can be used in many different set environments calling for specifically different locations of the input member.

Abstract: A timer mechanism for controlling a thermostat having a control shaft, the mechanism comprising: a frame, a synchronous motor mounted in the frame, a first and second lever pivotably mounted on the frame so as to be able to take an operative and an inoperative position, cam motion transmission means operatively connected to the said motor so as sequentially to pivot the said first lever from its inoperative to its operative position, while pivoting the said second lever to its inoperative position, and from its inoperative to its operative position, while pivoting the said second lever to its operative position, first transmission means operatively connected to the said motor and controlled by the said first lever to rotate the said control shaft in a first direction when the said first lever is in its operative position, and second transmission means operatively connected to the said motor and controlled by the said second lever to rotate the said control shaft in the opposite direction of rotation when the

Abstract: A tuner for use in a telecommunication receiver having a rotary drum carrying a plurality of oscillation coils and a fine tuning member for each coil supported for movement inside of the coil for fine tuning and having a geared head, and a main shaft on which the rotary drum is rigidly mounted, and a fine tuning mechanism which has a hollow shaft coaxially mounted on the main shaft for movement between projected and retracted positions and having a drive gear mounted thereon and a transmission gear assembly for transmitting the rotational force of the hollow shaft to the geared head of any one of the fine tuning members. The transmission gear assembly is supported by a support plate assembly.

Abstract: Drive and driven shafts are rotatably supported in a wall portion of a press frame and have free end portions extending into a gear case. A first drive gear is nonrotatably secured to the drive shaft and a second driven gear is nonrotatably secured to the driven shaft. A T-shaped member is pivotally connected to the wall and has an intermediate shaft member nonrotatably positioned in a slot for longitudinal movement therein. The intermediate shaft has a free end portion extending into the gear case with intermediate gears rotatably mounted thereon. The T-shaped member is arranged to be suitably adjusted to maintain different sized intermediate gears in meshing relation with different sized drive and driven gears so that the drive shaft imparts a preselected angular velocity to the driven shaft through the gear train. A pair of support arms each have an aperture adjacent one end and an elongated longitudinally extending slot adjacent the other end.

Abstract: A machine tool comprising a rotatable spindle, at least one fly-wheel, at least one first roller carried by the spindle and at least one further roller for driving the fly-wheel, wherein the at least one further roller can be engaged with and disengaged from the at least one first roller, so that the fly-wheel can be optionally rotated with the spindle without any play.

Abstract: Radio tuner assembly with guide means for automatically maintaining the axis of the pinion gear in radial alignment with the crown gear on the tuner shaft. The tuner shaft is rotatably coupled to one end of the guide means. The pinion gear shaft is slidably and rotatably coupled to the other end of the guide means. The pinion gear shaft is coupled to a manual tuning control shaft through a universal joint connection. This arrangement provides a range of adjustable positions for the manual tuning control shaft relative to the radio tuner front panel while automatically maintaining the axis of the pinion gear in radial alignment with the crown gear.

Abstract: A plurality of fine tuning elements are mounted on a disc which is rotatable by a selector shaft so that a selected tuning element is in a tuning position. Each tuning element comprises a screw with a gear mounted at the end thereof. A tuning shaft is rotatable and translatable on the selector shaft and has an actuator disc and a tuning gear fixed thereto. An idler shaft has first and second gears fixed thereto and is normally held in a tilted inoperative position by a spring. The tuning shaft is manually translatable so that the actuator disc engages with the idler shaft and tilts the same against the force of the spring in such a manner that the first and second gears engage with the tuning gear and the gear of the selected tuning element respectively to drivably connect the tuning shaft to the screw of the desired tuning element.

Abstract: A motion reversal device for mechanisms for compact cassettes, moving spool arrangements and the like, comprising a frame; two alternatively tape drive and winding hub members rotatably supported on the frame. A first gear is supported on the frame and is adapted to drive one of the hub members. A second gear is also supported on the frame and is adapted to drive the other of the hub members. A rockable train of gears has a supporting structure for rotatably supporting the gears of the train of gears. The supporting structure is pivotally supported on the frame to allow the rocking motion of the train. The rocking movement of the rockable pivotally supported structure allowing an output gear of the train to alternatively mesh with the first and the second gear. A reversible electric motor supported on the frame has a drive gear constantly in mesh with an input gear of the train of gears in all positions of the rocking train of gears.

Abstract: A control mechanism for controlling the reciprocating movement of a pusher for a picture-holder in a transparency projector of the type in which a rotating shaft serves to reciprocate the pusher during the course of a 360.degree. rotation of the shaft. A continuously rotating electric motor drives the shaft through two gear stages and a coupling member effects the coupling of the motor to the shaft first, through the first stage and then through the second stage.

Abstract: The assembly has a tuning control shaft which is adjustable over a range of positions to conform to a range of tuner designs. An adjustable guide bracket for the manual tuning pinion gear allows the pinion gear to be positioned along a radius of the crown gear, allowing use of radially wider gear teeth on the crown gear. The clutch-declutch assembly is unaffected by movement of the pinion guide bracket and the entire tuner control and drive gear assembly is preassembled and preadjusted, then positioned with one locking nut.

Abstract: A film advancing-fluid spreading apparatus for progressively distributing a released mass of a processing composition across an exposed photosensitive layer of a film unit carrying a pod wherein the processing composition is contained. A pair of pressure-applying members having juxtaposed surfaces are rotatably mounted for contacting and advancing upper and lower surfaces of the film unit therebetween to distribute a layer of the processing composition across the photosensitive layer of the film unit. One of the pair of pressure-applying members includes a pinion axially coupled thereto which receives energy from a motor connected to a power transmitting system including a coupler whereby energy is transferred from the motor to rotate the pinion in a predetermined direction.