Severing a web

Details Severing a web Severing a web

1993-03-23

1994-09-13

Jillions, John M.

Winding, tensioning, or guiding

Convolute winding of material

With tearing or breaking

83 16, 225 935, 242526, B65H 1926

Patent

active

053461517

ABSTRACT:
A moving web (1) is severed, after the intended length has been wound up, by fracture mechanical crack propagation starting from perforation cuts introduced by means of a laser system (9-11) into a web material embrittled by cooling (8) at the severance location.

REFERENCES:
patent: 3410979 (1968-11-01), Larsson
patent: 3526162 (1970-09-01), Willcox
patent: 3791603 (1974-02-01), Lenius
patent: 3878978 (1975-04-01), Martinek
patent: 4515321 (1985-05-01), Kahlman
patent: 5092533 (1992-03-01), Gangemi

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