Gap gauge

Details Gap gauge Gap gauge

1981-03-06

1982-08-24

Haroian, Harry N.

Geometrical instruments

Area integrators

Electrical

G01B 702

Patent

active

043453805

ABSTRACT:
A hand-held, manually operable gauge for measuring the gap between opposing surfaces of a pair of spaced parts includes a pair of reciprocable gauge fingers insertable into the gap and respectively shiftable into engagement with the parts by a lever pivotally mounted on a handle. One of the fingers is stationarily mounted on the handle while the other finger is secured to a plunger slidably mounted on the handle and driven by the lever. Linear displacement of the plunger is translated by a rack and pinion to rotary motion for operating a potentiometer whose setting corresponds to the magnitude of the gap. A switch carried by the handle and activated by the lever produces a signal proportional to the potentiometer setting, which signal is delivered to a device for visually displaying the magnitude of the gap. A lost motion mechanism permits continued displacement of the lever after the gauge fingers have contacted the parts.

REFERENCES:
patent: 1243545 (1917-10-01), Nefedov
patent: 2331757 (1943-10-01), Anders
patent: 2824376 (1958-02-01), Yarrow

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