An indexing mechanism is provided to enable discrete angular displacement of a first body 10 relative to a second body 12. An intermediate body 22 is provided, and is rotatable relative to both the first and second bodies 10,12. Mutually engageable detent elements on the first and intermediate 10,22, and intermediate and second 22,12 bodies, provide indexing of the first body 10 relative to the intermediate body 22 and the intermediate body relative to the second body 12 respectively. The angula...

An indexing table having a mounting plate, a support plate and a base. The indexing table further has a lifting piston, locating pistons and clamps for clamping the support plate. The indexing table additionally provides a valve to carry out the specific operations.

An indexing device has a first crown gear arranged on a first annular body secured to an indexing table, a second crown gear arranged on a second annular body secured to a housing, and a third crown gear arranged on an axially movable third annular body. The third crown gear can be taken out of and into engagement with the other annular crown gears by a hydraulically operable lifting and lowering device. A radial bearing supports the indexing table rotatably on the housing. The lifting device ha...

The present invention provides a method for identifying, isolating, mapping, amplifying and sequencing DNA fragments using sets of indexing linkers. Panels of indexing linkers and kits are also provided.

An indexing apparatus operated by a unidirectionally rotating drive shaft. The drive shaft and a driven member are rotatingly supported by a base in a spaced apart manner. An interconnecting link extends between the drive shaft and the driven member and is pivotally pinned in an offset manner at a first end to the drive shaft. A second end of the interconnecting link is pivotally pinned in an offset manner to the driven member. When the drive shaft rotates it oscillates the driven member in oppo...

A valve for controlling the flow of a gas or mixture of gases through a passageway in a coating material dispensing device includes first and second valve portions. The first valve portion is adjustable with respect to the second valve portion selectively to adjust the flow through the passageway. One of the first and second valve portions includes a first engagement member and the other of the first and second valve portions includes a second engagement member. Engagement of the first and secon...

An indexing apparatus (10) is disclosed which is designed for use with various types of work transfer equipment and is operative to provide smooth rapid jerk-free acceleration and deceleration whereby workpieces may be smoothly and rapidly transferred between operating stations. The indexing apparatus (10) includes suitably arranged cams (90, 90', 106, 124, 130, 132, 150, 162, 180) and cam followers (38, 52, 114, 116, 166, 168, 174) which operate to convert a driving input motion which is typica...

An indexing machine utilizes a rotating assembly for incrementally rotating a workpiece which is releasably held by a gripping mechanism adapted to rotate conjointly with the rotating assembly. The gripping mechanism is movable between a first position in which the gripping mechanism grips the workpiece and a second position in which the gripping mechanism releases the workpiece. The gripping mechanism is automatically and constantly urged towards its second position so as to facilitate the rele...

An indexing system for the rotary work changer of a machining center for supporting and interchanging work-holder pallets between the machining zone and the load/unload zone of the machining center. The indexing system comprises a hydraulically powered rotary actuator attached to the work changer and having first and second ports, a hydraulic fluid pressure line and a hydraulic fluid return line, a directional valve for connecting the hydraulic fluid pressure line to either one of the first and ...

Indexing apparatus is disclosed whereby a constantly rotating drive shaft can intermittently drive apparatus driven thereby. An arm carried by the drive shaft pivotally carries a second arm which has means for engaging a cammed surface whereby the pivoted arm is moved radially toward and away from the drive shaft. The rotated output member is mounted for rotation about the longitudinal axis of the drive shaft and includes a projection adapted to be engaged selectively by an engaging member on th...