Roll fastening for roll films

Details Roll fastening for roll films Roll fastening for roll films

1974-09-03

1976-10-19

Brammer, Jack P.

Gas separation: apparatus

Electric field separation apparatus

Plural diverse electric fields

G03C 302

Patent

active

039868796

ABSTRACT:
A roll fastening is based on the fact that the beginning of the film is stuck to the leader by means of an adhesive strip (film sticker). In this way, the outermost turn of the leader is lightly bonded to a preceding turn. To this end, a first hole is punched into the leader in the vicinity of the film sticker, so that part of the tacky surface of the film sticker remains exposed, and another hole with a larger surface area than the first hole is punched into the leader at the same level as and at a distance of d..pi. (d = roll diameter) from the first hole.

REFERENCES:
patent: 1828955 (1931-10-01), Bornmann
patent: 1944132 (1934-01-01), Naewiger
patent: 2188779 (1940-01-01), Roehrl

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