Method and apparatus for moving individual sheets from a stack o

Details Method and apparatus for moving individual sheets from a stack o Method and apparatus for moving individual sheets from a stack o

1985-06-03

1989-02-14

Bartuska, F. J.

Sheet feeding or delivering

Feeding

Separator and conveyor

271 91, 271263, 414737, 4147954, B65H 308, B65H 702

Patent

active

048041734

ABSTRACT:
A measuring device (60) measures the value (t) of a chosen parameter (thickness) of what has been lifted by a lifting assembly (40) from a stack of sheets (1) of material and allows the lifted material to be moved from the stack when the value is in a predetermined relationship to a reference value (T). One (45a) of a plurality of selectively releasable members (45) on the lifting assembly (40) is moveable in two horizontal directions to locate a sheet attached to the one releaseable members (45a) against locating pins (5, 6) on the work table (3) of the punch press (4). The entire system may be operated automatically by a controller (90).

REFERENCES:
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patent: 2217983 (1940-10-01), Hopkins
patent: 2225006 (1940-12-01), Gudger et al.
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patent: 3215427 (1965-11-01), Pierce
patent: 3294396 (1966-12-01), Staines
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patent: 3740029 (1973-06-01), Bays
patent: 4173335 (1979-11-01), Jauecek et al.
patent: 4391439 (1983-07-01), Edstrom
patent: 4392766 (1983-07-01), Blunt
patent: 4434693 (1984-03-01), Hosoi et al.
patent: 4462585 (1984-07-01), Giesou et al.

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