Advancing material of indeterminate length – With material-responsive control means – To position material laterally
Patent
1979-12-27
1981-12-01
Gilreath, Stanley N.
Advancing material of indeterminate length
With material-responsive control means
To position material laterally
26 515, 26 77, 226 17, 226 20, 226 21, 250548, 250561, 250571, B65H 2510, B65H 2526
Patent
active
043031897
ABSTRACT:
A system for aligning a moving run of fabric which has longitudinal and transverse threads along a path determined by a selected one of the longitudinal threads. The system includes optics for projecting an image of the longitudinal threads while suppressing the image of transverse threads, means for determining the direction of any deviation and the amount of deviation from the selected thread position, and guidance means for returning the run to a position in which the selected thread is in its desired position. An improved guidance means which effects transverse movement of the fabric run without introducing wrinkles or bias into the run is also disclosed.
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patent: 2208420 (1940-07-01), Gulliksen
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patent: 2332104 (1943-10-01), Meyer
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patent: 3077656 (1963-02-01), Mahlo
patent: 3406887 (1968-10-01), Laycak
patent: 3701464 (1972-10-01), Crum
patent: 3752377 (1973-08-01), Knapp
patent: 4021031 (1977-05-01), Meihofer
patent: 4135664 (1979-01-01), Resh
Joyce William R.
Wiley Thomas W.
Gilreath Stanley N.
Tex-Fab, Inc.
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