An indexing apparatus for indexing an article about an axis. The indexing apparatus is adapted to be removably attached to the article and is constructed to axially displace the article along the axis to a disengaged position upon the initial application of a rotary force to an indexing assembly housed within the indexing apparatus. When in the disengaged position, the article can be selectively rotated about the axis by the further application of rotary force to the indexing assembly so that th...

An indexing mechanism includes a first body and a second body. The first and second bodies are rotatable relative to each other about a plurality of index positions which are provided at discretely spaced angular orientations about the axis. The bodies are relatively moveable in an axle direction to facilitate disengagement from a given index position.

An indexing head has a plurality of co-axial discs rotatable relative to each other. A first disc carries an indexing pin receivable in a series of equi-angularly spaced recesses of a second disc. A third disc is angularly settable relative to the second disc by means of gauge blocks, and is lockable after setting by locking means. A tool shank can be releasably held in an axial bore of the first disc. When used in an oil bath of an erosion machine, the head is fitted with a bellows skirt to pre...

An indexing mechanism is disclosed that can put a tool in a variety of positions while downhole in the face of high static and dynamic loads. In the preferred application, the mechanism controls a movable sleeve on a downhole choke. It contains an indexing feature comprising a pin movable in a series of slots. A piston restrained to move longitudinally engages and rotates an index sleeve to allow the pin to advance into the next J-slot track. A separate lug on the piston engages a radial face on...

An indexing apparatus for selectively indexing a payload about an axis. The apparatus includes a housing that supports an indexable support table. A second retainer is provided on the indexable support table that is adapted to selectively axially engage a first retainer on the housing to lock the indexable support table in any one of a plurality of selected rotational positions about the axis. The apparatus also includes an axial displacement member that is movably supported within the housing t...

The invention relates to an index fixture system comprising a casting mounting, an indexing fixture which provides rotative positioning of a work held within a collet holder spindle. A worm gear and worm affixed to a synchronous stepping motor, giving a total of 28,800 index positions, controls the indexing fixture, the motor being controlled by a computer program containing a pre-computed list of motor step times.

An indexing device includes a layer of film and pressure sensitive adhesive material located on at least a portion of one side of the layer of film to enable the layer of film to adhere to an object such as a finger. The indexing device further includes material having a very high coefficient of friction with respect to the objects to be indexed disposed upon at least a portion of the second side of the film layer. By sliding the material disposed on the second side of the indexing device across...

An indexing mechanism comprises a detent spring secured to a shaft and biased into engagement with a long wearing hill and valley insert secured to a housing. A variety of inserts can be secured to a standard housing providing a variety of switching positions and angles of indexing. A plurality of ears extending radially from the insert engage notches within the housing and a pair of spaced arms integral with each of the ears are biased against the walls of the notches to rigidly secure the inse...

An indexing device has a toothed gear actuated by a reciprocating yoke impinging on a tooth to turn the gear and to hold the gear in a fixed position upon further movement of the yoke in the same direction. The yoke is reciprocated through a cam connection with a pivoted lever which in turn is acted upon alternately by two electromagnets. Each stroke of the yoke rotates the indexing gear one tooth.

The present invention provides an index apparatus comprising a base, a cover, locking and unlocking means, indexing means, a coil spring, cards etc. When compared with conventional ones, the apparatus of the present invention has the following main features. The construction and the fitting to impart the opening capacity to the cover of an index apparatus are very simple. To mention more fully, the opening capacity can easily be given to the cover only by inserting the coil spring in the contrac...