Envelope gummer cylinder clutch and brake

Details Envelope gummer cylinder clutch and brake Envelope gummer cylinder clutch and brake

1981-07-30

1983-11-22

Coan, James F.

Manufacturing container or tube from paper; or other manufacturi

Control means energized in response to activator stimulated...

Responsive to work material, the product or means engaging...

118681, 493266, B31B 162

Patent

active

044166516

ABSTRACT:
Apparatus for applying gum to spaced portions of an envelope is provided with means for sensing the absence of an envelope on a conveyor belt feeding the envelopes to the gummer apparatus. In response to sensing the absence of an envelope on the conveyor belt, a gummer cylinder containing spaced gummer pads for applying gum to the flap and body of the envelope is precluded from rotating by disengagement of a clutch between the gummer cylinder and its drive and simultaneous contact of a brake with the cylinder.

REFERENCES:
patent: 2000325 (1935-05-01), Ford et al.
patent: 2134379 (1938-10-01), Sauerman
patent: 2455900 (1948-12-01), Yardeny et al.
patent: 2776224 (1957-01-01), Cote
patent: 3030915 (1962-04-01), Shannon
patent: 3687252 (1972-08-01), Krull
patent: 4055111 (1977-10-01), Howatt

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