Sheet conveyor having retractable pins held in a wheel for openi

Details Sheet conveyor having retractable pins held in a wheel for openi Sheet conveyor having retractable pins held in a wheel for openi

1992-03-06

1993-02-23

Stodola, Daniel P.

Advancing material of indeterminate length

Means to engage longitudinally spaced modifications in material

Rotating sprocket

4006163, 226 87, 226 81, B65H 2020

Patent

active

051882701

ABSTRACT:
A sheet conveyor for conveying a sheet by engaging an engaging member with openings formed in a sheet and conveying the sheet by displacement of the engaging member. The conveyor includes a holding device for holding the engaging member so as to be movable between an operative position and a retracted position retracted from the operative position, a device deformable to move the engaging member provided on the holding device between the operative position and the retracted position, and a drive device for driving the holding device to displace the engaging member.

REFERENCES:
patent: 2815672 (1957-12-01), Storer
patent: 3825162 (1974-07-01), Hubbard
patent: 4022365 (1977-05-01), Weller
patent: 4033493 (1977-07-01), Levinson
patent: 4036420 (1977-07-01), Lockwood
patent: 4129239 (1978-07-01), Hubbard
patent: 4133613 (1979-01-01), Webster
patent: 4571104 (1986-02-01), Jung et al.

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