Work holders – Relatively movable jaws – Means for direct manual adjustment of jaw
Patent
1984-07-27
1987-09-22
Schmidt, Frederick R.
Work holders
Relatively movable jaws
Means for direct manual adjustment of jaw
269244, B25B 102
Patent
active
046950460
ABSTRACT:
A specimen holder clamp for a microtome comprising a fixed jaw which is fixed relative to a guide member and a movable jaw which is movable along a path defined by the guide member. The clamp is provided with a first infinitely adjustable rack, and the movable jaw carries a second complementary incrementally adjustable rack for coupling engagement so that when the second complementary incrementally adjustable rack engages with the first infinitely adjustable rack, fine adjustment of the clamp can be effected, and when the second complementary incrementally adjustable rack is disengaged, coarse adjustment can be effected. The second complementary incrementally adjustable rack is normally biased into engagement with the first infinitely adjustable rack.
REFERENCES:
patent: 1084489 (1914-01-01), Schmutz
patent: 1415103 (1922-05-01), McQueen
patent: 1753924 (1930-04-01), Gordon
patent: 2269381 (1942-01-01), Robertson
Cambridge Instruments GmbH
Hartman Judy J.
Schmidt Frederick R.
Spencer Alan H.
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