Perforating machine

Details Perforating machine Perforating machine

1976-06-14

1977-06-07

McCarthy, Edward J.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

B65H 3504

Patent

active

040278280

ABSTRACT:
A perforating machine for making tear lines in a woven or non-woven fiber sheet material. The machine comprises a feeder mechanism for feeding a web of sheet material. A roller assembly maintains the web stretched while a further roller imposes tension to the web along the longitudinal axis thereof. A perforating roll assembly is provided to cut fibers in the web along a line whereby to form a tear line substantially transverse to the direction of tension while maintaining the tension in the web. Traction rolls positively engage the web through the perforating roll assembly. An accumulator roll assembly receives the web after the tear lines have been made therein.

REFERENCES:
patent: 868361 (1907-10-01), Pope
patent: 1402848 (1922-01-01), Dutro
patent: 2447604 (1948-08-01), Taggart
patent: 3232549 (1966-02-01), Stambaugh
patent: 3471098 (1969-10-01), Jannett
patent: 3792637 (1974-02-01), Saunders
patent: 3853279 (1974-12-01), Gerstein

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