Stack control apparatus for sheet feeders

Details Stack control apparatus for sheet feeders Stack control apparatus for sheet feeders

1981-05-08

1984-07-03

Stoner, Bruce H.

Sheet feeding or delivering

Feeding

Pack holders

414118, G05B 1724, B65H 118

Patent

active

044575084

ABSTRACT:
A stack height control apparatus for sheet feeders in sheet processing machines. The apparatus comprises a 2:1 divider connected to stack height sensors, a comparison timing stage connected to the divider, a comparator stage connected to the sensors, to the divider and to the comparison timing stage, a forward-backward shift register connected to the comparator stage and at least two timing stages each connected to the shift register and to the comparator stage. The apparatus allows automatic feeding of sheets to machines such as employed for example as printing presses.

REFERENCES:
patent: 3125337 (1964-03-01), Cruzen
patent: 4021710 (1977-05-01), Fichte et al.

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