Gum applying apparatus

Details Gum applying apparatus Gum applying apparatus

1981-11-24

1983-06-14

Coan, James F.

Manufacturing container or tube from paper; or other manufacturi

With coating

Adhesive

493266, 493337, B31B 162

Patent

active

043880711

ABSTRACT:
Gum applying apparatus including a pair of gum applying dies mounted on a common shaft for applying gum along and adjacent to the side edges of an envelope blank during the manufacture of the blank into an envelope. Each of the dies includes a central circular plate and a pair of circular sectors spaced from each other about the circumference of the circular plate. The sectors are in contact with a gummer roll which transfers gum from a container to the sectors. The gum is applied by the sectors to spaced envelope blanks on a conveyor belt beneath the sectors. The space between the sectors is adjacent the conveyor when the space between the blanks on the conveyor traverses the gum applying station thereby precluding gum from being applied to the belt running through the station; but enabling the gum to be applied continually to the envelope blanks. Means are also disclosed to control the amount of gum transferred to the gum applying die sectors.

REFERENCES:
patent: 1193626 (1916-08-01), Staude
patent: 1926364 (1933-09-01), Bergstein
patent: 2088228 (1937-07-01), Belcher et al.
patent: 2776224 (1957-01-01), Cote
patent: 2953071 (1960-09-01), Heywood
patent: 2967465 (1961-01-01), Berenson
patent: 2986975 (1961-06-01), Mengis et al.

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