Device for controlling the feed of copying material in copying m

Details Device for controlling the feed of copying material in copying m Device for controlling the feed of copying material in copying m

1974-12-23

1976-04-06

Blunk, Evon C.

Cutting

Tool engages work during dwell of intermittent workfeed

Unicyclic

83221, 271 9, 355 13, B26D 520

Patent

active

039481301

ABSTRACT:
A device for controlling the feed mechanism for copying material is connected to a coupling at the feed mechanism of the copying material in order to ensure that the respective leading edges of an original and the copying material are fed to a copying zone in congruence irrespective of the throughput speed. For easy adjustment this device is built up with a pulse generator in synchronism with the movement of the original feed mechanism and with a pulse counter the output of which is connected to the coupling. The counter counts the number of pulses in a predetermined period of time and stores this number. Further, the counter counts a second number of pulses occurring after the predetermined period and produces an output signal when the second number of pulses is equal to a predetermined number of pulses less the stored count.

REFERENCES:
patent: 3715944 (1973-02-01), Knechtel et al.
patent: 3722340 (1973-03-01), Kobayashi

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