Micrometer jig

Details Micrometer jig Micrometer jig

1977-06-23

1978-09-12

Stearns, Richard R.

Geometrical instruments

Area integrators

Electrical

33147J, 33160, G01B 500

Patent

active

041125819

ABSTRACT:
Disclosed is a micrometer jig for measuring distances to close tolerances between a surface and a curved edge. The jig consists of a leg member with a socket at one end which slidably mounts an arm member in "T" relationship to the leg. A protractor housing is slidably mounted on the leg and pivotally mounts a protractor finger which projects from one side of the leg. A threaded stub shaft projects from the tail of the rotractor finger and carries a wing nut to releasably secure the finger in a particular angular disposition with respect to the leg member. The arm member carries a micrometer on the end adjacent the protractor finger so that accurate measurement can be achieved between a surface contacted by the micrometer and the apex of the angle formed by the leg member and protractor finger.

REFERENCES:
patent: 412984 (1889-10-01), Schmidt
patent: 997989 (1911-07-01), Glickert
patent: 2207480 (1940-07-01), Delgado
Blumstein, M. L., "Dial Gauge Mounted on Square", Popular Science Monthly, 8-1933, p. 60.

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