Platen positioning means for imprinters

Details Platen positioning means for imprinters Platen positioning means for imprinters

1975-04-09

1976-05-04

Burr, Edgar S.

Printing

Rolling contact machines

Bed-and-cylinder

101283, 29129, B41F 304, B41F 356

Patent

active

039540561

ABSTRACT:
A roller platen imprinter is provided with means for selectively raising and lowering the roller platen for the imprinting and return strokes. The said means includes regions on the platen shaft of different sectional dimensions, together with cam means for axially shifting the support position of the shaft between the portion having the large sectional dimension and the portion having the smaller sectional dimension to selectively raise and lower the platen.

REFERENCES:
patent: 2730771 (1956-01-01), Beck et al.
patent: 2909811 (1959-10-01), Naegeli
patent: 3577917 (1971-05-01), Nantz
patent: 3650209 (1972-03-01), Allport
patent: 3705548 (1972-12-01), Waterman
patent: 3810424 (1974-05-01), Barbour
patent: 3814015 (1974-06-01), Ozaki et al.
patent: 3862598 (1975-01-01), Hawthorne
patent: 3893393 (1975-07-01), See

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