Self-centering vise for holding a sample in a laboratory instrum

Details Self-centering vise for holding a sample in a laboratory instrum Self-centering vise for holding a sample in a laboratory instrum

1988-10-27

1991-08-27

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

2504401, 2504421, 269242, 269247, 269257, B01L 900, B25B 110, B25B 124

Patent

active

050431447

ABSTRACT:
A self-centering vise for holding a sample in a laboratory instrument includes a pair of elongated rails, end plates attached to opposite ends of the rails disposing them in side-by-side spaced relationship to define a guide channel having a dovetail shape in cross-section between the rails, a central shaft rotatably mounted to the end plates and extending between the end plates and through the channel, and a pair of jaws mounted on the shaft in the channel between the rails and extending above and laterally of the channel so as to overlie and slidably contact the upper slide surfaces of the rails for holding a sample therebetween upon the rails. The shaft has left hand and right hand externally threaded surfaces defined in tandem relationship to one another, and the jaws have lower portions of dovetail shape in cross-section complementary to the dovetail shape of the guide channel defined between the rails and left hand and right hand internally threaded bores extending therethrough complementary to and intermeshing with the left hand and right hand externally threaded surfaces of the shaft for causing self-centering sliding movement of the jaws toward or away from one another upon selective rotation of the shaft.

REFERENCES:
patent: 72921 (1867-12-01), Shellenbock
patent: 3861664 (1975-01-01), Durkee
patent: 4559450 (1985-12-01), Robinson et al.

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