Web feed apparatus

Details Web feed apparatus Web feed apparatus

1975-07-23

1976-05-11

Schacher, Richard A.

Advancing material of indeterminate length

Plural material-moving means

226195, B65H 1720, B65H 1724

Patent

active

039557375

ABSTRACT:
A web feed apparatus wherein a section of the web is maintained at a higher tension while accurately metering the feed of the web at a relatively lower tension, means being provided to isolate the low tension metering function from the higher tension section by anterior snubbing rolls and posterior tension pull-up rolls. A typical mechanism is a blanket offset business forms printing press which must satisfy the requirement of very accurate web feed rate over a given length of the web, when the blanket-impression nip at the print couple(s) with the attendant higher tension requirement to maintain print quality and web lay, are both necessary.

REFERENCES:
patent: 3727820 (1973-04-01), Braun
patent: 3764050 (1973-10-01), Clark

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