Pick-up means for use with limp sheet material

Details Pick-up means for use with limp sheet material Pick-up means for use with limp sheet material

1992-09-10

1994-04-19

Dayoan, D. Glenn

Sheet feeding or delivering

Feeding

Separators

271 10, 271272, B65H 330

Patent

active

053039106

ABSTRACT:
A device for picking up a top layer of limp sheet material from a lay-up of sheet material includes a head assembly including a pair of rollers between which the top layer is retainably gripped and a double-acting cylinder for lifting the head assembly, with the top layer held thereby, to an elevated condition above the remainder of the lay-up. The device compensates for the reduction in the height of the lay-up as the layers are singularly picked up from the layer and includes a controller for automatically controlling the sequencing of operations of the device.

REFERENCES:
patent: 793009 (1905-06-01), Miller
patent: 3425685 (1969-02-01), Liva
patent: 3608890 (1971-09-01), Littlefield
patent: 3756587 (1973-09-01), Lutts et al.
patent: 3856294 (1974-12-01), Lutts et al.
patent: 4395033 (1983-07-01), Janssen et al.
patent: 4482144 (1984-11-01), Glassby
patent: 4578013 (1986-03-01), Barillee et al.
patent: 5064183 (1991-11-01), Nishigaki et al.

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