Mechanism for retracting the pressure rollers of a tape transpor

Details Mechanism for retracting the pressure rollers of a tape transpor Mechanism for retracting the pressure rollers of a tape transpor

1980-03-21

1982-04-13

Christian, Leonard D.

Advancing material of indeterminate length

By orbitally traveling material-engaging surface

Including details of roll or mount

242208, B65H 1720

Patent

active

043243550

ABSTRACT:
A tape transport has two pinch rollers, either of which presses the tape against the capstan with which that pinch roller coacts in order to advance the tape in the desired direction. When power is off, neither pinch roller should press against its capstan. A retraction mechanism includes a spring acting in a direction to withdraw or retract whichever pinch roller would otherwise bear against its capstan when the power is off. However, when the power is on, the mechanism permits the pinch rollers to function in their usual manner.

REFERENCES:
patent: 3137429 (1964-06-01), Joslow
patent: 3257056 (1966-06-01), Cederberg et al.
patent: 3637165 (1972-01-01), Rethwish
patent: 3643846 (1972-02-01), Kato et al.

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