Cross stretch measuring system

Details Cross stretch measuring system Cross stretch measuring system

1990-11-16

1992-03-10

Raevis, Robert

Measuring and testing

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

By loading of specimen

G01N 308

Patent

active

050941100

ABSTRACT:
In a system for measuring the cross stretch along selected areas of a tubular portion of a hosiery article to determine whether the degree of stretch falls within selected parameters, a pair of arms having designated arcuate portions over which a selected area of the article to be tested is positioned. A fluid cylinder displaces a first arm relative to a second arm to stretch the selected area of the article and therefore apply a force to the second arm. When a prescribed force is reached, a control means, in response to a signal from a load cell coupled to the second arm, records the linear displacement of the first arm and reverses the operation of the fluid cylinder.

REFERENCES:
patent: 1817617 (1931-08-01), Gosch
patent: 2187914 (1940-01-01), Reitan
patent: 3039299 (1962-06-01), Roof
patent: 3400576 (1968-09-01), Siciliano
patent: 3444728 (1969-05-01), Burns
patent: 3879990 (1975-04-01), Joy
patent: 3975956 (1976-08-01), Peel
patent: 4137763 (1979-02-01), Swallow
patent: 4866991 (1989-09-01), Tse

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