Print drum security system

Printing – Selective or progressive – Rotary machines

Patent

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Details

101 99, B41L 4746

Patent

active

046012400

ABSTRACT:
A postage meter has a print drum with print wheels which are shiftable to select the value of the postage. The print wheels are adjusted by displacing respective rack gears through an annular drive member and a pinion, and the print drum is rotated for printing the selected value on a workpiece. A shutter bar locks the print drum against rotation during value selection and locks the annular member against rotation during print drum rotation.

REFERENCES:
patent: 2187456 (1940-01-01), Komusin
patent: 2510350 (1950-06-01), Rouan et al.
patent: 4050374 (1977-09-01), Check, Jr.
patent: 4331075 (1982-05-01), Williams

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