Control valve for vacuum sheet feeding apparatus

Details Control valve for vacuum sheet feeding apparatus Control valve for vacuum sheet feeding apparatus

1977-06-20

1979-09-25

Stoner, Jr., Bruce H.

Sheet feeding or delivering

Feeding

Separators

271 99, 271171, B65H 310

Patent

active

041688295

ABSTRACT:
A mechanism for positioning a control valve for an oscillating vacuum feeder which automatically adjusts the position of the control valve in relation to the width of the sheets to be fed. The mechanism includes at least one coupler member selectively engageable by the side guides which align the opposing marginal edges of the stack of sheets to be fed from a sheet supply hopper. The control valve, located within the oscillating vacuum feeder adjacent the outboard ports thereof, has an outwardly extending arm which passes through a longitudinal slot in the feeder. The arm is captured by the coupler member whereby movement of the side guides will be directly imparted to the valve through the coupler member to position the valve for controlling opening or closing of the outboard ports.

REFERENCES:
patent: 2764407 (1956-09-01), Alix
patent: 2770458 (1956-11-01), Halahan et al.
patent: 2841392 (1958-07-01), Norton
patent: 3476382 (1969-11-01), Tregay et al.
patent: 3500999 (1970-03-01), Lippke
patent: 3533618 (1970-10-01), Carstens
patent: 3617048 (1971-11-01), Albert
patent: 3674255 (1972-07-01), Arnell
patent: 3851871 (1974-12-01), Aronson

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