Apparatus having dual slotter shafts

Details Apparatus having dual slotter shafts Apparatus having dual slotter shafts

1976-04-09

1977-01-18

Lake, Roy

83504, 83699, 93 58R, B31B 122

Patent

active

040033007

ABSTRACT:
Apparatus such as a paperboard printer slotter is provided with dual slotter shafts each having a device to quickly reposition a slotter knife by moving the same in a circumferential direction with respect to an annular head which supports the same. During such positioning of the slotter knife, it is held stationary while the annular support head is rotated. This slotter knife is releasably mounted on its head and a means is provided to selectively release the lock when it is desired to reposition the knife. The knives on one slotter shaft cut a slot on the leading edge of a first blank and the trailing edge of a following blank. The knives on the other slotter shaft cut the slot on the trailing edge of the first blank and the leading edge of the following blank.

REFERENCES:
patent: 3003403 (1961-10-01), Goettsch
patent: 3080783 (1963-03-01), Knepshield
patent: 3353460 (1967-11-01), Henc
patent: 3760697 (1973-09-01), Besemann
patent: 3837265 (1974-09-01), Tokuno
patent: 3952637 (1976-04-01), Lambert et al.

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