Micrometer calipers

Details Micrometer calipers Micrometer calipers

1974-02-28

1976-03-02

Aegerter, Richard E.

Geometrical instruments

Area integrators

Electrical

33147F, 33174Q, G01B 334

Patent

active

039408566

ABSTRACT:
There is disclosed in the present application a micrometer caliper or gage of the comparator type including an expansible measuring member detachably coupled to an amplifying and indicating mechanism. The mechanism includes an index pointer and a dial which is adjusted to zero relatively to the pointer while the measuring member engages a reference standard. Thereafter, the pointer indicates deviations in measured dimensions of a workpiece on the dial either plus or minus from the size of the standard. The measuring member of the specification is in the form of a partial split ring adapted to measuring the size of external diameters. A sleeve which limits the expansion of the measuring member, however, is equally applicable to calipers for internal dimensions, internal calipers, as is also its interior construction of the measuring member for coupling it to the mechanism.

REFERENCES:
patent: 1633807 (1927-06-01), Darlington
patent: 2581955 (1952-01-01), Hunter
patent: 2741850 (1956-04-01), Reed

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