Method and apparatus for removing gussets from flat tubes

Details Method and apparatus for removing gussets from flat tubes Method and apparatus for removing gussets from flat tubes

1979-03-08

1980-10-21

Coan, James F.

93 28, 93 32, 93 84FF, B31B 126

Patent

active

042287286

ABSTRACT:
A method and apparatus for removing longitudinal gussets from a flat tube of flexible material, such as paper, including a conveyor for conveying the flat tube along a guide path to a gusset removal station having means operative to separate opposite side panels of the flat tube at their leading edges while simultaneously effecting a drag on one of the side panels as one of the forward leading edges enters the nip of feed rolls so that the gussets are removed and lie substantially coplanar with the opposite side panels of the tube to enable subsequent forming of cuffs at one end of the tube preparatory to replacing the gussets and closing the opposite end of the tube.

REFERENCES:
patent: 795046 (1905-07-01), Lorenz
patent: 832850 (1906-10-01), Dulin et al.
patent: 1165765 (1915-12-01), Duvall
patent: 2159853 (1939-05-01), Johnson
patent: 2888859 (1959-06-01), Dambacher
patent: 3059550 (1962-10-01), Wellman
patent: 3361041 (1968-01-01), Grob
patent: 3547010 (1970-12-01), Gennerick et al.
patent: 3870292 (1975-03-01), Bradley
patent: 3897530 (1975-07-01), Leathers
patent: 3913463 (1975-10-01), Hollis

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