Photoelectrophoretic electrostatic tacking capstan web tension s

Winding – tensioning – or guiding – Coil holder or support – Spool or core

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226195, B65H 5900

Patent

active

039814599

ABSTRACT:
A photoelctrophoretic imaging apparatus for controlling tension of a transported conductive web. In a preferred embodiment, the web tension is controlled by an electrostatic capstan roller driven by an A.C. motor and gear box through an overdriven clutch. Tension is supplied to the web from the electrostatic capstan roller through electrostatic tacking force between the roller and the web. The electrostatic tacking force is obtained by grounding the conductive side of the web and applying a pulsed D.C. voltage to the rolls.

REFERENCES:
patent: 1995722 (1935-03-01), Smith
patent: 2168023 (1939-08-01), Dymeck
patent: 3250488 (1966-05-01), Prager
patent: 3255979 (1966-06-01), Treff
patent: 3257086 (1966-06-01), Drenning

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