Wire elongation test method and apparatus

Details Wire elongation test method and apparatus Wire elongation test method and apparatus

1981-05-22

1983-02-08

Myracle, Jerry W.

Measuring and testing

Surface and cutting edge testing

73 87, G01N 1900

Patent

active

043721540

ABSTRACT:
A digital method of testing a wire drawing distance to determine the percent wire elongation provided thereby in which a predetermined test length of wire is pulled through the die and then around a rotatable capstan thereby rotating the same. A train of electrical pulses is generated in response to rotational movement of the capstan, there being 10.sup.n pulses generated in response to the rotational movement of the capstan caused by pulling a length of drawn wire therearound equal in length to the test length prior to drawing through the die where "n" is a positive integer greater than zero and less than five. The pulses generated during the pulling of the test length of the wire through the die are counted, and a visual indication of the pulse count with the most significant digit eliminated is provided.

REFERENCES:
patent: 3240055 (1966-03-01), Eddens
patent: 3447364 (1969-06-01), Gelfand et al.

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