Dating wheels

Details Dating wheels Dating wheels

1979-09-17

1981-02-24

Eickholt, E. H.

Printing

Printing members

Rolling contact

400175, B41F 1310

Patent

active

042520614

ABSTRACT:
Dating wheel with a tracer symbol unit which can be manually inserted on or removed from the wheel. To change the tracer symbol, the operator simply uses thumb and forefinger to grasp the unit and extract same and then replace with an identical unit having a different symbol. This can be done without slowing or stopping the cases or other medium being printed. There is no machine down-time.

REFERENCES:
patent: 175140 (1876-03-01), Myers
patent: 1102104 (1914-06-01), Stigberg
patent: 2674185 (1954-04-01), Davidson
patent: 2746389 (1956-05-01), Alessi, Jr. et al.
patent: 2874637 (1959-02-01), Grevich
patent: 3186337 (1965-06-01), Hill

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