Device of securing a film bearing indicia on the printing roll u

Details Device of securing a film bearing indicia on the printing roll u Device of securing a film bearing indicia on the printing roll u

1983-08-30

1984-10-16

Coughenour, Clyde I.

Printing

Flexible-sheet-securing devices

101378, B41F 2706, B41F 2712

Patent

active

044767838

ABSTRACT:
A device of securing a film bearing indicia on the surface of the printing roll under tension in an efficient and automatic way, the device comprising: a first engager and a second engager provided at each end of the film, a first receiving means and a second receiving means provided adjacent to each other on the peripheral surface of the printing roller, wherein the first receiving means is adapted to receive the first engager of the film and wherein the second receiving means is adapted to receive the second engager of the film, the second receiving means comprising a slotted rod rotatively placed in an accommodation groove produced in the printing roll, and a pinion secured to the terminating end of the rod, a rotor rotatively provided at one end face of the printing roll, the rotor having a first tooth zone and a second tooth zone in its periphery, wherein the first tooth zone is adapted to engage with the pinion and wherein the second tooth zone is adapted to engage with a ratchet mechanism provided in place alongside the periphery of the rotor, and a brake means for stopping the rotor from rotating in association with the rotation of the printing roll.

REFERENCES:
patent: 350916 (1886-10-01), Crowell
patent: 572695 (1896-12-01), Cottrell
patent: 629930 (1899-08-01), Spalckharer
patent: 3757690 (1973-09-01), Skiera et al.
patent: 4068586 (1978-01-01), Frey et al.

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