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US 4,378,707 AGranted
Indexing apparatus
AssigneeJackson Machine Products
InventorRichard W. Jeffries
Life of this patent
Estimating the term…
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AssigneeJackson Machine Products
InventorRichard W. Jeffries
Estimating the term…
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 opposite first and second directions through an arc. A releasable engaging device carried by the driven member releasably engages an index member rotatably carried by the base. The releasable engaging device engages the index member during oscillation of the driven member in a first direction, and a timed locking means operated in timed relation to the rotation of the drive shaft selectively engages the index member locking it against rotation in the second direction and releasing the index member for rotation during oscillation of the driven member in the first direction. An arc adjusting device is provided to vary the arc through which the driven member oscillates.
In an indexing apparatus operated by a unidirectionally rotating drive shaft supported on a base, an indexing member rotatably mounted to the base, a driven member supported by the base adapted to selectively rotatably engage the indexing member, interconnecting means driven at a first end by a first crank arm associated with said drive shaft and connected at a second end to said driven member by a second crank arm whereby said drive shaft oscillates said driven member in opposite first and second directions through an arc of travel, releasably engaging means carried by said driven member engaging said indexing member during oscillation of said driven member in said first direction, locking means operated in timed relation to rotation of said drive shaft to selectively engage said indexing member to lock said indexing member against rotation and to release said indexing member for rotation during oscillation of said driven member in said first direction;
Dependencies are inferred from the claim text.