Multi purpose thread ring gage

Geometrical instruments – Gauge – Screw thread

Patent

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Details

335552, G01B 348

Patent

active

049398458

ABSTRACT:
The present invention is directed to an improved, multi purpose measuring device for determining various parameters of an externally threaded member. In particular, the invention includes a substantially ring shaped housing slidably supporting at least one pair of gage plugs having measuring assemblies mounted thereon. As the gage plugs are selectively moved through the housing to bring the measuring assemblies into contact with an externally threaded member for determining various parameters such as the actual and functional pitch diameters, the minor diameter and the concentricity of the threaded member.

REFERENCES:
patent: 2594143 (1952-04-01), Fichter
patent: 2634508 (1953-04-01), Stainton
patent: 2793443 (1957-05-01), Wedin
patent: 3111766 (1963-11-01), Bryant
patent: 4590678 (1986-05-01), Arredondo

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