Film severing method and apparatus

Details Film severing method and apparatus Film severing method and apparatus

1976-05-14

1977-06-21

Yost, Frank T.

Cutting

Processes

Plural cutting steps

83 52, 83 56, 83214, 83276, 83409, 83451, 83614, 83661, B26D 126

Patent

active

040303888

ABSTRACT:
A film severing method and apparatus is provided in which a film having first and second edges is engaged by film holding devices and the film is severed in a transverse path between such holding devices while the film is held on either side thereby, such severing including:
Cutting the film at the first edge by moving a severing device into the film at a position spaced from the first edge and thereafter moving it in a first direction toward and through such first edge to form a partial cut and
Completing the severing of the film by moving another severing device in a second direction into the partial cut and thereafter through the film toward and through the second edge whereby to sever the film.

REFERENCES:
patent: 2792890 (1957-05-01), Dyken
patent: 3269242 (1966-08-01), Hooper et al.
patent: 3620114 (1971-11-01), Chudyk
patent: 3813974 (1974-06-01), Friberg et al.

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