Automatic web threading apparatus and method

Details Automatic web threading apparatus and method Automatic web threading apparatus and method

1989-04-17

1990-02-27

Hastings, Karen M.

Paper making and fiber liberation

Processes and products

Lead strip forming and/or guiding

162194, 162255, 162286, D21F 136, D21F 700

Patent

active

049043447

ABSTRACT:
A method and apparatus for automatically threading a traveling web strip, such as a so-called paper tail in a papermaking machine, utilizes a doctor for doctoring the web strip from the surface of a roll. A stream of compressed air is projected against the oncoming web strip in the vicinity of the point where the doctor blade contacts the web on the roll and urges the oncoming web off the roll surface upstream of the doctor. A foil is brought into proximity with the outer surface of the web spaced over the roll to urge the strip outwardly and against a serrated knife to sever the web strip against the force of its momentum. The severed end of the web strip is then guided onto a plate for conveyance into a downstream section of the machine for further processing.

REFERENCES:
patent: 3113348 (1963-12-01), Varga
patent: 3355349 (1967-11-01), Devlin
patent: 4136808 (1979-01-01), Reba
patent: 4179330 (1979-12-01), Page
patent: 4182472 (1980-01-01), Peekna
patent: 4321107 (1982-03-01), Page
patent: 4342413 (1982-08-01), Reba
patent: 4501643 (1985-02-01), Kiuru
patent: 4543160 (1985-09-01), Kerttula et al.
patent: 4648942 (1987-03-01), Wanke et al.
patent: 4684443 (1987-08-01), Kerttula et al.
patent: 4692215 (1987-09-01), Kerttula
patent: 4726502 (1988-02-01), Cryderman
patent: 4818343 (1989-04-01), Laine

Affiliated with

Also associated with

Rating

Automatic web threading apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic web threading apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic web threading apparatus and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-171809