Mechanism for feeding similar flat items in succession from a st

Details Mechanism for feeding similar flat items in succession from a st Mechanism for feeding similar flat items in succession from a st

1985-03-26

1986-04-29

Stoner, Jr., Bruce H.

Sheet feeding or delivering

Feeding

Separator and conveyor

101232, 221242, 271111, 271118, 271144, 414129, B65H 500

Patent

active

045852189

ABSTRACT:
Improvements result from using a feed roller always rotating at a constant surface speed to feed mail items successively with gaps between them from a stack to a franking machine without undue variations in the gap lengths when there are variations in the mail item lengths in respective stacks. A cam rocks a cradle about an input roller axis to bring a feed roller against the stack at a frequency to feed the items forward one by one. Gearing between rollers drives a two speed transmission to a cam via one way clutches. For envelopes shorter than a predetermined limit, the higher speed drive operates. When a rear mail guide member engages envelopes longer than the limit, a lever allows a pawl to disengage a wrap spring clutch disabling the higher speed drive and rendering the lower speed drive effective.

REFERENCES:
patent: 2880996 (1959-04-01), Stiles
patent: 4158456 (1979-06-01), Holland-Letz
patent: 4284269 (1981-08-01), Ignatjev

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