Locking means for a rotational work station in an analyzer

Details Locking means for a rotational work station in an analyzer Locking means for a rotational work station in an analyzer

1991-07-25

1992-05-05

Braun, Leslie A.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74435, 74530, F16H 2500

Patent

active

051097281

ABSTRACT:
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 engages the cam, unless the carrier is restricted. The cam is rotated by a gear. A locking mechanism is provided to lock the carrier against inadvertent rotation, and the improvement resides in the locking mechanism comprising a gear segment on the cam follower positioned to engage the gear during a portion of the engagement by the drive gear of the gear segment on the cam.

REFERENCES:
patent: 2881630 (1959-04-01), Opocensky
patent: 3101586 (1963-08-01), Polonsky et al.

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