Ring gauge for checking external dimensions

Geometrical instruments – Area integrators – Electrical

Patent

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G01B 508, G01B 712

Patent

active

045437254

ABSTRACT:
A ring gauge for checking external diametral dimensions comprising an arm-set essentially consisting of an integral member including two arc-shaped arms, two resiliently deformable portions adapted to define fulcrums for the rotation of the arms and an intermediate portion coupled to a support. Two feelers are adjustably fixed to the arms, approximately at intermediate points of their longitudinal development. The elements of a transducer are fixed at the free ends of the arms.

REFERENCES:
patent: 1928457 (1933-09-01), Mershon et al.
patent: 3648377 (1972-03-01), Witzke
patent: 3808696 (1974-05-01), Possati
patent: 4348814 (1982-09-01), Possati et al.
patent: 4385444 (1983-05-01), Possati et al.
patent: 4386467 (1983-06-01), Possati et al.
patent: 4389788 (1983-06-01), Balogh et al.
"Heli-Coil" by Celada Fasteners, issued approximately Feb. 1978.

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