Micrometer

Details Micrometer Micrometer

1981-03-29

1982-10-26

Haroian, Harry N.

Geometrical instruments

Area integrators

Electrical

G01B 502

Patent

active

043554687

ABSTRACT:
A micrometer comprising a letter `U` shaped frame, an anvil fixed on one end of said frame and directed to the other end thereof and a spindle supported on said frame in a manner to be axially movable from the other end at one end and, during measuring, the forward end thereof comes into abutting contact with an article being measured, a control knob connected to said spindle and projected outwardly from the frame, a rack formed on the spindle in the axial direction thereof and dial indicator driven by the spindle, when the spindle axially moves, through pinions being meshed with the rack, the spindle being moved by reciprocating operation of the control knob, which is operated by one hand gripping the micrometer, and a value of movement of the spindle being read by means of the dial indicator.

REFERENCES:
patent: 342245 (1886-05-01), Cross
patent: 1345236 (1920-06-01), Powers et al.
patent: 3447244 (1969-06-01), Scholl
patent: 3974570 (1976-08-01), Uchino

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