Automatic burster apparatus having a double bursting bar

Details Automatic burster apparatus having a double bursting bar Automatic burster apparatus having a double bursting bar

1981-12-29

1983-08-30

Yost, Frank T.

Severing by tearing or breaking

Breaking or tearing apparatus

Plural breakers

225100, B65H 3510

Patent

active

044012497

ABSTRACT:
An apparatus for automatic bursting of perforated continuous forms is disclosed. The apparatus comprises first and second feeder means which may comprise two pairs of rotating rollers with tensioning means being provided by rotating the roller pairs at a slight speed differential. The apparatus also includes releasing means for intermittently releasing the feeding action of the first feeder means or roller pair. The releasing means may be provided by a flat area on the surface of one of the low speed rollers for releasing the nip in the low speed rollers to allow the forms to slip and uncrinkle. The apparatus also includes first and second forms separation means which cooperate with perforations in the forms to separate the forms, the first separation means acting when no immediately preceding forms slippage has occurred and the second separation means acting when immediately preceding forms slippage has occurred. The first and second separation means may comprise, respectively, a first burster blade and a second burster blade spaced a small distance downstream from the first burster blade.

REFERENCES:
patent: 3338487 (1967-08-01), Schutz
patent: 3667663 (1972-06-01), Kacmarcik et al.
patent: 3991924 (1976-11-01), Schueler
patent: 4118022 (1978-10-01), Rayfield et al.
patent: 4269341 (1981-05-01), Polko

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