Dial gauge

Details Dial gauge Dial gauge

1983-09-14

1985-07-16

Little, Willis

Geometrical instruments

Area integrators

Electrical

116292, G01B 322

Patent

active

045287554

ABSTRACT:
A dial gauge according to the present invention wherein moving ranges of a dial plate and a needle are determined to be within predetermined limits.
In this dial gauge, the dial plate is interposed between an inner frame and an outer frame in a manner to be rotatable relative to either the inner frame or the outer frame, and a projection formed on the undersurface of this dial plate is positioned within a groove formed on the top face of an outer frame mounting portion of the inner frame to thereby control the dial plate in its moving range. On the other hand, a slot is formed in a gear for enlarging and transmitting a movement of a spindle in the circumferential direction of the gear and the forward end of a pawl affixed to the inner frame is loosely inserted into the slot to thereby restrict the needle in its turning to less than one turn.

REFERENCES:
patent: 1966424 (1934-07-01), Ames
patent: 2832151 (1958-04-01), Emery
patent: 3046931 (1962-07-01), Beer
patent: 3721010 (1973-03-01), Ristow

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