Apparatus for feeding a moving web to a stenter apparatus

Details Apparatus for feeding a moving web to a stenter apparatus Apparatus for feeding a moving web to a stenter apparatus

1978-03-10

1980-07-08

Gilreath, Stanley N.

Textiles: cloth finishing

Expanding device for textile webs

Spreader

226 91, 226172, D06C 300

Patent

active

042109876

ABSTRACT:
A process and apparatus for introducing a moving web to a stenter apparatus at the commencement of the stenter apparatus operation comprises gripping and transporting the web between at least two belt conveyors which are driven at a linear speed substantially equal to the linear speed of the edge grips of the stenter apparatus, transferring the moving web into the moving edge grips of the stenter apparatus, and disengaging the belt conveyors from gripping and transporting contact with the moving web when continuous web transportation through the stenter apparatus has been established. Useful in processes for the production of oriented and heat-set thermoplastics films such as polyethylene terephthalate films for feeding the film to the stenter apparatus at the beginning of the film production process or if a malfunction necessitating re-feeding occurs in the stenter apparatus. Preferably incorporates means for feeding the film to a dump until re-feeding can occur, then severing the film and re-feeding.

REFERENCES:
patent: 2266067 (1941-12-01), Nyberg
patent: 3014234 (1961-12-01), Koppehele
patent: 3370111 (1968-02-01), Boone
patent: 3438139 (1969-04-01), Holm
patent: 3471606 (1969-10-01), Corbett et al.
patent: 3515328 (1970-06-01), Smith, Jr.
patent: 3611479 (1971-10-01), Wicksall
patent: 3916491 (1975-11-01), Kampf
patent: 3976237 (1976-08-01), Bossons
patent: 4007078 (1977-02-01), Aoki et al.
patent: 4038121 (1977-07-01), Benson et al.

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