Reversible drive for flexible web

Details Reversible drive for flexible web Reversible drive for flexible web

1975-09-29

1976-08-31

McCarthy, Edward J.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

B65H 1702

Patent

active

039776204

ABSTRACT:
A reversible drive apparatus for a flexible web, especially adapted to a reversible ribbon drive for a printing machine. A driving spur gear is arranged to be shifted between a pair of spur gears, each associated with a ribbon spool. The shifting is accomplished by mere reversal of direction of a drive motor which has a lead screw type shaft upon which the driving spur gear is mounted with mating screw threads. This allows the driving spur gear to travel laterally along the lead screw shaft between the pair of spur gears whenever the motor reverses direction.

REFERENCES:
patent: 1845550 (1932-02-01), Metze
patent: 3627219 (1971-12-01), Hanson
patent: 3670981 (1972-06-01), Cavella
patent: 3923267 (1975-12-01), Eckerd

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