Pin micrometer adapter

Details Pin micrometer adapter Pin micrometer adapter

1978-03-13

1979-01-30

Stearns, Richard R.

Geometrical instruments

Area integrators

Electrical

G01B 318

Patent

active

041364570

ABSTRACT:
An adapter for a pin-anvil micrometer, such as used to measure wall thicknesses of small tubing. The jaws of pin micrometers can normally hold a pin of 1/16" minimum diameter while flexing approximately 0.001" and can therefore be used to measure, for example, wall thicknesses of tubing having a 1/16" diameter bore. The range adapter is an anvil extender that snugly fits over the micrometer jaws and extends the effective jaw length to near the spindle center line. Anvil pins of approximately 0.015" may then be used without flexing and the micrometer can then accurately measure distances from 1/64" holes or slots.

REFERENCES:
patent: 2445402 (1948-07-01), Malmberg
patent: 2541821 (1951-02-01), Kneissler
patent: 2590922 (1952-04-01), Blewett et al.
patent: 3023510 (1962-03-01), D'Ambrose, Jr.
patent: 3123917 (1964-03-01), Haluska

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