Test specimen grip assembly

Details Test specimen grip assembly Test specimen grip assembly

1976-10-13

1978-03-28

Ciarlante, Anthony V.

Measuring and testing

Surface and cutting edge testing

Roughness

G01N 304

Patent

active

040808246

ABSTRACT:
A test specimen grip assembly for holding a metallurgical test specimen in a test apparatus operative to apply tensile force to the specimen. The grip assembly includes plural tapered inserts which apply to the specimen a radial wedge gripping force that increases as the tensile force is increased. The inserts are received in a holder mechanism including a cup-shape holder within which a hemispherical ring is rotatably seated for alignment purposes, and a frusto-conical opening is provided in the ring for receiving the inserts. In an alternate embodiment an adaptor is connected to the specimen to facilitate securing the latter in the test apparatus.

REFERENCES:
patent: 1122289 (1914-12-01), Loveland
patent: 1341431 (1920-05-01), Morrow
patent: 3005336 (1961-10-01), Wyman
patent: 3107524 (1963-10-01), O'Connor
patent: 3138952 (1964-06-01), Dobbin
patent: 3344662 (1967-10-01), Pruett

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