Sheet feeding or delivering – Delivering – With transfer means between conveyor and receiver
Patent
1976-02-13
1977-11-29
Blunk, Evon C.
Sheet feeding or delivering
Delivering
With transfer means between conveyor and receiver
72 54, 72160, 271188, 271195, 271204, B65H 2970, B65H 2904
Patent
active
040602362
ABSTRACT:
A method and apparatus for continuously bending or creasing sheet material as the material travels along a path. The invention creases and decurls the material; that is, compensates for a natural tendency to curl in the opposite direction, and serves as a drag on the trailing portion of the sheet material, thereby providing positive sheet control. It is characterized by an air pressure gradient which forces the material into a zone between a pair of parallel, spaced, elongated support surfaces as the material is drawn over the support surfaces.
REFERENCES:
patent: 1709096 (1929-04-01), Reinhold
patent: 2106199 (1938-01-01), Wormser
patent: 2474997 (1949-07-01), Wormser
patent: 2881000 (1959-04-01), Kephart
patent: 3076492 (1963-02-01), Monks
patent: 3212775 (1965-10-01), Taylor
patent: 3451670 (1969-06-01), Staines
Blunk Evon C.
Stoner Jr. Bruce H.
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