Method and apparatus for the production of numerically correct s

Details Method and apparatus for the production of numerically correct s Method and apparatus for the production of numerically correct s

1990-08-09

1992-02-18

Look, Edward K.

Sheet-material associating

Associating and folding

Zigzag package

270 32, B41L 132

Patent

active

050887076

ABSTRACT:
A method and apparatus for producing numerically correct partial stacks from individual leaves or sheets interfolded in a U-shaped or zigzag form on an interfolder. A double stream is formed from one or more streams of sheets by staggering or guiding together. This double stream is then continuously folded into zigzag form and piled up in a continuously growing stack, from which partial stacks of a specific size are separated. Gaps are formed in the streams of sheets which simplify the introduction of separating elements into the stack. For this purpose, sheets are removed from the streams of sheets and optionally placed accurately in position on successive sheets.

REFERENCES:
patent: 4717135 (1988-01-01), Hathaway
patent: 4770402 (1988-09-01), Couturier
patent: 4778441 (1988-10-01), Couturier
patent: 4824426 (1989-04-01), DuFresne

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