Folder for a web-fed rotary printing press

Details Folder for a web-fed rotary printing press Folder for a web-fed rotary printing press

1979-10-24

1981-07-21

Burr, Edgar S.

Sheet-material associating

With printing

Associating and folding, with rotary printer

270 50, 493417, 493427, 493444, B41F 1354, B65H 4516

Patent

active

042794102

ABSTRACT:
A method and apparatus for folding sheet stacks in a web-fed rotary printing press is disclosed. The sheet stacks are severed from groups of paper ribbons and are conveyed by suitable conveying cylinders to spaced folding tables. Each folding table is provided with rotating folding blades and cooperating driving folding roller pairs. Each folding table is further provided with a pulse absorber assembly having a plurality of stop rods or bars which are positioned to contact the leading edge of each group of sheet stacks to halt the motion of the stacks on the folding tables. The halted sheet stacks are then folded. A suitable drive assembly for the pulse absorber is also disclosed.

REFERENCES:
patent: 204772 (1878-06-01), Spalckhaver
patent: 240235 (1881-04-01), Crowell
patent: 3053373 (1962-09-01), Cross
patent: 3540723 (1970-11-01), Bolza-Schuenemann
patent: 3784187 (1974-01-01), Takayanagi
patent: 4093206 (1978-06-01), Hartmann

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