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Class 74/820 - Geneva or multilated gear drive


Subclass of Class 74 - Machine element or mechanism
Definition: Devices having either a mutilated or a Geneva type gearing
No. of patents: 52
Last issue date: 04/11/2006


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NumberTitleIssue Date
7024740Rotating table apparatus
A rotating table apparatus using a cam mechanism and having a higher precision than a conventional rotating table is realized. A rotating table apparatus having a driven shaft supported by a housing and driven by a driving device, and a rotating table which is rotat...
04/11/2006
6948402Rotary work table with cycloidal drive gear system
A rotary table or turntable includes a work supporting platform with a driven pin carrier attached thereto. The pin carrier includes a circular array of pins engaged with a driven cycloidal gear. The cycloidal gear is driven by a prime mover, such as a servomotor, a...
09/27/2005
6892608Turning disc intermittent rotary mechanism
A turning disc intermittent rotary mechanism in accordance with the invention includes at least one top disc flexibly mounted to a bottom seat, wherein at the center of the top disc is provided with a through hole and the bottom surface thereof is provided with slid...
05/17/2005
6862786Rotating table apparatus
A rotating table apparatus using a cam mechanism and having a higher precision than a conventional rotating table is realized. A rotating table apparatus having a driven shaft supported by a housing and driven by a driving means, and a rotating table which is rotati...
03/08/2005
6666109Indexing apparatus and method of assembling the same
A worm shaft having a worm thereon, a worm wheel meshed with the worm, and a motor for driving the worm shaft are provided. The worm shaft and a shaft of the motor are connected together directly without interposing a rotation transmission mechanism, such...
12/23/2003
6662686Automatic motor-output-redirection system
An automatic motor-output-redirection system includes an automatic motor-output-redirection mechanism and a motor control unit for controlling the automatic motor-output-redirection mechanism which includes a turntable base arranged to be driven to rotate...
12/16/2003
6615690Turning disc intermittent rotary mechanism
The features of a turning disc intermittent rotary mechanism comprise at least one top disc, a through hole disposed at the center of the bottom disc plane, and the lateral side of the peripheral disc plane of the through hole is formed into a plurality o...
09/09/2003
6438813Rotary drive with a speed
A rotary drive adapted to perform a speed of rotation switching of a tool holding device, comprising an output drive shaft bearing the tool holding device, said output drive shaft being able to be moved into first and second axial positions by means of a ...
08/27/2002
6435051Driving cam of geneva mechanism
A driving cam of a Geneva mechanism includes a core member coupled to the driving cam, and including a circular arcuate portion to correspond to a circular arcuate concave of a driven cam and a groove formed along a peripheral surface of the circular arcu...
08/20/2002
6234047Intermittent transmission mechanism
An intermittent transmission mechanism that includes a driving rotating body adapted to rotate around an input shaft and a driven rotating body adapted to rotate around an output shaft is disclosed. The driven rotating body has arcuate recesses and a gear...
05/22/2001
6183087Geneva mechanism and motion picture projector using same
A driving mechanism such as a Geneva Mechanism which allows a load, such as film in a motion picture projector, to be intermittently advanced with controlled acceleration. The Geneva Mechanism includes a star wheel and a rotating driver. The star wheel in...
02/06/2001
5916324Stepping gear mechanism
The stepping gear mechanism is provided in particular for motion control of a machine tool turret and comprises two cam plates adapted to be driven in rotation in the same sense about an axis of rotation each and arranged in such manner with respect to a ...
06/29/1999
5906134Geneva drive mechanism
A Geneva drive mechanism includes a Geneva gear having arcuate recesses and radially outwardly opening slots arranged alternately in a circumferential direction thereof, and a driving member having an engaging element for engaging the slots. The driving m...
05/25/1999
5768757Tool turret for machine tools
Tool turret device for machine tools, comprising a turret head bearing device, to which a turret head is attached for rotation about an indexing axis, a turret head indexing device as well as locking means for the turret head, the turret head indexing dev...
06/23/1998
5720091Indexer with cam-actuated lock
An indexing mechanism for providing intermittent rotation to a device includes a rotatable driven member having a pair of spaced oppositely disposed arcuate slots and a driving member having a pair of angularly spaced driving rollers engageable with the s...
02/24/1998
5615468Modular mechanical system
Apparatus for performing a series of operations upon a workpiece that include at least one modular mechanical unit having a worktable for supporting workpieces thereon. The worktable is periodically indexed by a Geneva wheel so that a workpiece on the wor...
04/01/1997
5609061Turntable with stepping drive
Bearing system for a turntable (10) with a stepping drive, in which a table plate (12) is rotatably mounted on ball bearings on top of a housing (14), having drive pins (36) disposed on the same diameter offset at uniform angular distances and protruding ...
03/11/1997
5598749Table turning apparatus
A table-turning driving apparatus comprises a pair of first and second worm shafts 16 and 17 which engage a driving shaft through gears and which is rotated in the same direction of rotation as that of the driving shaft. One 16 of the worm shafts is fixed...
02/04/1997
5481945Lock plate adjustment for geneva drive mechanism
A machine tool has a rotatable table with a plurality of lock plates located on the underside thereof at circumferentially spaced locations, and a geneva drive mechanism arranged to coact with the lock plates in rotatably indexing the table. The lock plat...
01/09/1996
5370519Apparatus for cutting and dispensing cap lining material
An apparatus for cutting and dispensing segments of thermoplastic material into receptacles such as crowns, particularly into those having relatively high sidewalls, includes a conveyor for conveying the crowns through a passageway at predetermined speeds...
12/06/1994
5272291Dual switch actuator mechanism with Geneva drive plate and follower plates detent assembly
A dual switch actuator for coordinated actuation of two high-current switches, each having a switch operator with a shaft. The switch operator shafts are aligned paraxially with a main shaft of the actuator. A Geneva drive plate having an arcuate bearing ...
12/21/1993
5213425Platen drive device
A device for driving a platen includes a motor for driving the platen, and a power transmission mechanism for transmitting the power of the motor to the platen. The power transmission mechanism includes a drive wheel having a pin and driven by the motor f...
05/25/1993
5197354Angular drive intermittent motion mechanism
An intermittent drive mechanism is provided for intermittently driving an output shaft with an input shaft that has an axis that intersects the axis of the output shaft at an angle. A driving element on the input shaft couples with a driven element on the...
03/30/1993
5184525Mechanism for positioning a carrier
A mobile component carrier in an instrument includes a disk with a scalloped periphery. A larger bearing and a smaller bearing are mounted on a support structure. The larger bearing has a radius greater, and the smaller bearing has a radius less than that...
02/09/1993
5178040Tool turret for machine tools
The tool turret comprising driven tools comprises a turret shaft (2) which carries the turret plate (4) and is supported in a turret housing (1) so as to be rotatable and axially displaceable. The turret shaft (2) can be locked at the turret plate end by ...
01/12/1993
5165295End stop for stepper for step-type transformer
A stepper drive for a step-type transformer has an upper geneva wheel rotatable about a wheel axis, a lower geneva wheel spaced below the upper wheel and also rotatable about the axis, and a driver rotatable about a driver axis adjacent the wheels and hav...
11/24/1992
5109728Locking means for a rotational work station in an analyzer
There is disclosed a camming apparatus for a work station that provides for relative rotational motion between a cam and a cam follower connected to the work station, e.g., a liquid dispenser. The cam follower is movable on a carrier that frictionally eng...
05/05/1992
5090100Machine tool with a rotary table and rotatable holding devices
To so improve a machine tool comprising a machine frame, a rotary table mounted on the machine frame for rotation about a center axis, machining stations arranged around the rotary table, at least one holding device mounted on the rotary table for rotatio...
02/25/1992
5080347Sheet paper feeder
A sheet paper feeder for use in a printing press, includes a cam mechanism interposed between sheet feeding rollers, and a source of drive force for the sheet feeding rollers which are adapted to be repeatedly rotated and stopped along a programmed contin...
01/14/1992
4944198Tool-holder turret with an epicyclic transmission and positioning unit
The tool-holder turret for lathes or like machining centers has a fixed support member (1; 52) bearing a rotary member (4; 51) to which there may be attached a tool-holder plate designed to bear a plurality of tools, each of which can brought into the ope...
07/31/1990
4858290Machine tool indexing apparatus
A machine tool having a main spindle head and an indexing table those being inclined with respect to a horizontal plane. The machine tool comprises the main spindle head, a main spindle, a reciprocation drive means and the indexing table. The main spindle...
08/22/1989
4771655Rotary actuator
A rotary actuator has a first rotor rotatable around a first axis and having a plurality of first projections circumferentially spaced and axially projecting from one end surface thereof, a second rotor rotatable around a second axis which is eccentric to...
09/20/1988
4684114Index tables
An index table comprising a base, a main plate mounted on the base, a drive wheel mounted for rotation on one side of the main plate about a first axis transverse to the main plate, a work plate on the other side of the main plate rotatably mounted about ...
08/04/1987
4563910Positive-locking indexing system for high-speed operation
A rotatable member to be indexed in a machine is intermittently rotated through specific angular displacements between predesignated indexing positions by an indexing mechanism driven by a hydraulic motor and is positively locked in each indexing position...
01/14/1986
4512214Station locking rotary indexing table
Provided is a rotary indexing table comprising a circular plate having a peripheral race mounted to a base. A notched Geneva disk is provided with a plurality of cam followers which ride in the plate race. Between the plate and the disk is a dual slotted ...
04/23/1985
4470318Vehicle seat and adjusting arrangement thereof
An arrangement for adjusting a seat of a vehicle has a plurality of adjusting elements arranged to adjust the position of the seat, a drive motor, and a distributing transmission provided within the drive motor and the adjusting elements and including a p...
09/11/1984
4466310Timing mechanism with two independent rotary outputs
A timing mechanism for use in an appliance such as a domestic clothes dryer, for example. The mechanism includes a synchronous motor and two output shafts. One output shaft is the conventional rotary output shaft of the speed reducing gear train associate...
08/21/1984
4448093Stepping drive mechanism
Stepping drive mechanism for converting a constant input rotatory movement to a linear movement of a given length accelerated first from zero, then continuing at constant velocity, and finally decelerated back to zero, in which the constant input rotatory...
05/15/1984
4428256Geneva gear apparatus for driving an index table
An apparatus for driving an index table which includes a first shaft, an index table rotatably mounted on the first shaft having grooves therein forming a Geneva gear and a mechanism for driving the table in rotation including a drive motor, a second shaf...
01/31/1984
4416165Stepping gear
A stepping gear includes an output member attached to a wheel which is provided with a number of rollers on both faces thereof. In driving contact with these rollers is a pair of cam members having contours which allow for driving in the forward direction...
11/22/1983
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