Automatic splice relief control

Details Automatic splice relief control Automatic splice relief control

1976-09-01

1978-03-28

McCarthy, Edward J.

Presses

Automatic or material triggered control

Of roll separation or speed

B30B 1514

Patent

active

040808882

ABSTRACT:
A calender roll is arranged to automatically have the pressure relieved between a pair of pressure rolls when a splice is detected in a moving web. The splice in the web is detected a known distance upstream of the pressure rolls. A counter, related to web travel distance, is activated to cause the temporary relief in the pressure between the rolls as the splice travels therebetween, preventing any damage that would otherwise occur to the moving web and avoiding any production slowdown.

REFERENCES:
patent: 3317734 (1967-05-01), Martin, Jr.
patent: 3521551 (1970-07-01), Boxmeyer
patent: 3742486 (1973-06-01), Skidmore

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