Printing apparatus having an integral speed pickup wheel

Details Printing apparatus having an integral speed pickup wheel Printing apparatus having an integral speed pickup wheel

1989-01-27

1990-05-01

Crowder, Clifford D.

Printing

Rolling contact machines

Rotary

101228, B41F 504

Patent

active

049208799

ABSTRACT:
A wheel (15) is freely mounted on the shaft (2) of a printing head and is in contact at its periphery with a film which is to be printed. A tachymeter (10) is provided which detects the speed of rotation of the wheel (15) and transmits a corresponding signal to apparatus (26) for controlling the speed of rotation of the motor (8).

REFERENCES:
patent: 2719482 (1953-03-01), Selley
patent: 2739528 (1956-03-01), Lowe
patent: 2910937 (1956-03-01), Hirschey
patent: 3487776 (1970-01-01), Marozzi
patent: 3603250 (1968-11-01), Knudsen
patent: 4527472 (1985-07-01), Davison

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