Constant pressure mechanism for printing operation of label prin

Details Constant pressure mechanism for printing operation of label prin Constant pressure mechanism for printing operation of label prin

1977-05-13

1979-04-17

Pieprz, William

Printing

Bed-and-platen machines

Web

101288, 400457, 156384, B41J 500

Patent

active

041494628

ABSTRACT:
A constant pressure mechanism for the printing operation of a label printing machine; the machine has a hand lever, a printing lever, a printing head attached to the printing lever, a constant pressure spring secured between the hand lever and the printing lever and a platen to carry a label strip; when the hand lever is squeezed, the printing lever is turned by the force of the constant pressure spring to strike the printing head against the label strip on the platen, and immediately after the printing operation, the printing head is slightly released from the platen by means of releasing members.

REFERENCES:
patent: 2384707 (1945-09-01), Sheet
patent: 2558616 (1951-06-01), Johnson
patent: 2682944 (1954-07-01), Schremp
patent: 3362326 (1968-01-01), Delpho et al.
patent: 3734262 (1973-05-01), Dall et al.
patent: 3793946 (1974-02-01), Sheffield
patent: 3911817 (1975-10-01), Becker et al.
patent: 4072105 (1978-02-01), Becker et al.

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