Arrangement and the stepwise advance of band material with two o

Details Arrangement and the stepwise advance of band material with two o Arrangement and the stepwise advance of band material with two o

1987-07-13

1988-12-20

Levy, Stuart S.

Advancing material of indeterminate length

By intermittent material-mover

With retrograde movement preventer

226154, 226167, B65H 2004

Patent

active

047920742

ABSTRACT:
An arrangement for the stepwise feed of band material which includes a first, locally fixed and driven feed roller and a second feed roller rotatably supported on a rocker; a lifting mechanism is provided, by which the second feed roller is movable at the point in time of the reversal of the direction of rotatin toward the first feed roller for an advance of the band material and away from the same into a return position in which the band material is to be held fixed. The feed arrangement is designed for an intermediate clearing of the second feed roller and of the guide member by abutment of the guide element on a height-adjustable eccentric and for different thick band materials. In the points of reversal of to and fro movements, the second feed roller as also the pressure device are briefly pressed against the band material.

REFERENCES:
patent: 1275984 (1918-08-01), Bailey
patent: 2514261 (1950-07-01), Scheffey
patent: 2851676 (1958-09-01), Woodcock et al.
patent: 2946586 (1960-07-01), Pityo
patent: 3784075 (1974-01-01), Portmann
patent: 4040553 (1977-08-01), G/o/ tz
patent: 4043494 (1977-08-01), Bickford et al.
patent: 4106324 (1978-08-01), G/o/ tz
patent: 4605147 (1986-08-01), Kato

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