Actual sew length measuring device

Details Actual sew length measuring device Actual sew length measuring device

1978-04-06

1979-10-23

Martin, Jr., William D.

Geometrical instruments

Area integrators

Electrical

33141E, 11212126, G01B 312, G01B 504

Patent

active

041715756

ABSTRACT:
The lengths of one or more fabric workpieces are measured by rolling a toothed measuring wheel over each fabric workpiece as it is passed through a sewing machine and conveying the revolutions of the measuring wheel to an electronic, digital counter by means of a torsion shaft whose flexibility is tuned such that while coacting with a friction brake at the counter, no reverse motion will occur due to relaxation in the fabric tension.

REFERENCES:
patent: 1468145 (1923-09-01), Entriken
patent: 2600336 (1952-06-01), Scivally
patent: 3688410 (1972-09-01), Zeidler et al.
patent: 3838519 (1974-10-01), Chick
patent: 3980032 (1976-09-01), Kleinschmidt et al.

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