Photography – Fluid-treating apparatus – Having photographic medium feed
Patent
1996-06-18
1998-05-19
Rutledge, D.
Photography
Fluid-treating apparatus
Having photographic medium feed
355 27, 226195, 492 28, 492 30, G03D 308
Patent
active
057549133
ABSTRACT:
In a system for transporting film materials, rotation of the transported film caused by uneven stress across a width of the film is eliminated by providing a pinch roll drive in which the driven roll is a precision metal roll and the non-driven roll is a rubber roll, the outer cylindrical surface of which is defined by a plurality of axially-spaced annular ribs. Accumulated error is removed at regular intervals by braking the film to cause correction of slippage. Feed under uniform stress is achieved by forming a dancer roll film loop and correcting for differential alignment of the various transport rolls by displacing a portion of one side of the loop.
REFERENCES:
patent: 3645619 (1972-02-01), Burton et al.
patent: 3904145 (1975-09-01), Steinberger et al.
patent: 3904354 (1975-09-01), Moser
patent: 4006395 (1977-02-01), Reesen
patent: 4025005 (1977-05-01), Fleck
patent: 4260234 (1981-04-01), Burton
patent: 4508524 (1985-04-01), Romangnoli
patent: 4652117 (1987-03-01), Kogane et al.
patent: 4757353 (1988-07-01), Kitai et al.
patent: 4787544 (1988-11-01), Jones
patent: 4978111 (1990-12-01), Kosugi et al.
patent: 5057861 (1991-10-01), Maeda et al.
patent: 5344058 (1994-09-01), Baffo
patent: 5383591 (1995-01-01), Thibert
ECRM Incorporated
Rutledge D.
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