Printing – Inkers – Fountains
Patent
1983-01-20
1984-05-29
Fisher, J. Reed
Printing
Inkers
Fountains
B41F 3104
Patent
active
044507674
ABSTRACT:
Disclosed is a control system for an ink blade of a printing machine provided with a series of key setting units each having a key position sensor and a key drive controlled by an adjusting device described in patent application Ser. No. 252,126. In order to achieve proper adjustment of marginal key setting units, there is provided a switching unit with a plurality of contacts assigned to respective key position measuring sensors and including additional switching contacts assigned to imaginary key position setting units adjoining the real setting units at each end of the ink zone. The additional marginal switching contacts are connected to the output of assigned sample-and-hold members which apply thereto the measured value from the extreme actual position sensors so that comparing differential transducer comparing the measured values of consecutive pairs of position sensors always produces a starting difference which does not exceed a predetermined limit value.
REFERENCES:
patent: 3585595 (1971-06-01), Slavin
patent: 3614738 (1971-10-01), Slavin
patent: 3702587 (1972-11-01), Lee
patent: 3746957 (1973-07-01), Forster et al.
patent: 3747524 (1973-07-01), Crum
patent: 3774536 (1973-11-01), Raymond et al.
Forster Karl-Heinz
Friedrich Ludwig
Johne Hans
Schuck Helmut
Fisher J. Reed
Striker Michael J.
VEB Kombinat Polygraph "Werner Lamberz Leipzig"
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