Apparatus for measuring the elongation of sample strips

Details Apparatus for measuring the elongation of sample strips Apparatus for measuring the elongation of sample strips

1992-04-09

1993-12-21

Myracle, Jerry W.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

73856, G01N 308

Patent

active

052712796

ABSTRACT:
An apparatus for measuring the respective elongations of several sample strips (13), comprises: a vertical frame (51) provided with a fixed upper gripping jaw (27) and a mobile lower gripping jaw (15) to maintain each of the strips (13), the lower gripping jaw (15) stretches the strip by gravity effect; and an electronic displacement sensor (33, 35) associated to each lower gripping jaw (15). Each gripping jaw comprises a sole and a plate articulated on the sole. A magnet (11) is mounted in the sole, flush with a contact surface of the sole, for urging the plate against the contact surface by magnetic attraction.

REFERENCES:
patent: 4513611 (1985-04-01), Bohlin
patent: 4998825 (1991-03-01), Hublikar et al.

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