Apparatus for separating a letter stack

Details Apparatus for separating a letter stack Apparatus for separating a letter stack

1974-02-27

1976-09-21

Blunk, Evon C.

Sheet feeding or delivering

Feeding

Separator and conveyor

271 34, 271111, 271114, 271259, B65H 304, B65H 502

Patent

active

039814939

ABSTRACT:
In an apparatus for forwarding flat items individually from a stack, a withdrawing mechanism forwards the items in succession into the gripping zone of a feed mechanism for further conveyance. Between the withdrawing mechanism and the feed mechanism there is situated a sensor which is connected to a control circuit controlling the operation of the withdrawing mechanism. The location of the sensor determines a standby position for each item. The control circuit causes operation of the withdrawing mechanism only when either the sensor senses no item present or the sensor senses the presence of an item and there is applied a call signal to the control circuit. Each item is first forwarded by the withdrawing mechanism from the stack to the standby position and is advanced by the withdrawing mechanism from the standby position into the gripping zone of the feed mechanism only when the call signal is applied to the control circuit.

REFERENCES:
patent: 3219339 (1965-11-01), Gutierrez
patent: 3469834 (1969-09-01), Stange et al.
patent: 3625508 (1971-12-01), Shiragai et al.
patent: 3768803 (1973-10-01), Stange

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