Guiding an end conduction strip of a web forwardly from a roll

Details Guiding an end conduction strip of a web forwardly from a roll Guiding an end conduction strip of a web forwardly from a roll

1989-01-10

1990-05-08

Hastings, Karen M.

Paper making and fiber liberation

Processes and products

Lead strip forming and/or guiding

34120, 162194, 162286, 1623601, 226 7, 226 97, D21F 700

Patent

active

049235672

ABSTRACT:
Method and apparatus for guiding and directing an end conduction strip of a web from a smooth-surfaced roll, such as a paper web in a press. The end conduction strip is detached from the smooth surface of the roll and further guided by utilizing a guide plate and air blowing actions. An air jet having sufficiently great impulse is directed against the end conduction strip on the roll surface. The end conduction strip is cut with the aid of this air jet and a leading edge thereof is detached by this air jet from the roll surface. The detached end conduction strip is further guided and conveyed forwardly by a transfer blowing action. This transfer blowing action is directed along the guide plate. An under-pressure field is produced in conjunction with the guide plate, by effect of the blowing action. The effect of this under-pressure field causes the end conduction strip to be further guided in a direction determined by the guide plate.

REFERENCES:
patent: 1279756 (1918-09-01), Pope
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patent: 1595478 (1926-08-01), Minton
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patent: 4147287 (1979-03-01), Reba
patent: 4684443 (1987-08-01), Kerttula et al.
patent: 4726502 (1988-02-01), Cryderman

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