Universal bag-making machine

Details Universal bag-making machine Universal bag-making machine

1976-03-15

1978-01-17

Dost, Gerald A.

93 33H, F15B 1522

Patent

active

040685667

ABSTRACT:
The web in the bag-making machine is continuously advanced from the web letoff to the takeup. At the operations station of the machine where operations take place on the web, the web is momentarily held stationary for operating thereon. A pair of swinging web control arms take up web at the entrance end of the station and let off web at the exit end during the moment at which the web is stationary. Operations take place when the web is stationary. Adjustments control length of time the web is stationary. Sealing and perforating operations are selectable.

REFERENCES:
patent: 1905446 (1933-04-01), Dewey et al.
patent: 3470795 (1969-10-01), Davis
patent: 3531035 (1970-09-01), Maynard et al.
patent: 3743567 (1973-07-01), Abler

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