Geometrical instruments – Area integrators – Electrical
Patent
1984-10-01
1986-09-09
Stearns, Richard R.
Geometrical instruments
Area integrators
Electrical
33148E, G01B 502
Patent
active
046100903
ABSTRACT:
A precision caliper gage to measure an internal or external dimension of a body. The caliper gage provides for quick and easy attachment of measuring components and for automatic interplanar alignment of measuring components as they are attached to the gage. A mainframe has a portion parallel to a longitudinal plane and is adapted for attachment of a pivot member in alignment with the longitudinal plane. A first measuring arm is mountable on the pivot also in alignment with the longitudinal plane. A second measuring arm is mountable on the mainframe in alignment with the longitudinal plane and cooperates with the first arm to measure a dimension. A measurement indicator is mountable on the mainframe with a measurement-responsive indicator stem in alignment with the longitudinal plane and responsive to measuring movement of the first measuring arm. The measurement indicator is positioned in a manner that the linear distance along a base line from a vertical line through a measuring point on the first measuring arm to a vertical reference line through the pivot member is proportional to the linear distance along the base line from the vertical reference line through the pivot member to a vertical line through a measurement-responsive point on the indicator stem.
REFERENCES:
patent: 2337509 (1943-12-01), Todd
patent: 2791033 (1957-05-01), Walters
patent: 4397092 (1983-08-01), Marcyan
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