Apparatus for expelling air from stacks of paper sheets or the l

Details Apparatus for expelling air from stacks of paper sheets or the l Apparatus for expelling air from stacks of paper sheets or the l

1984-02-02

1985-04-09

Wilhite, Billy J.

Presses

With additional treatment of material

Separating materials

100144, 100153, 100156, 100176, 100211, 100265, 100295, 414907, B30B 900

Patent

active

045094179

ABSTRACT:
Apparatus for expelling air from pockets between superimposed sheets of successive stacks has a brush or roller which can be lowered onto the topmost sheet of a stack while the leader of the stack is pulled along a stationary support by a tongs. The brush or roller urges successive increments of the lowermost sheet of the moving stack against a stationary or rotary anvil whereby the pockets of air are eliminated in automatic response to forward movement of the stack with the tongs. Expulsion of air from the stacks enhances their shape-retaining ability during transport toward the next processing station or stations as well as at such stations. The brush or roller is mounted on pivotable arms which can be rocked back and forth by one or more levers which are pivotable by a cam and follower assembly receiving motion from the main prime mover of the machine or production line wherein the stacks are formed and/or processed.

REFERENCES:
patent: 588125 (1897-08-01), Bundren
patent: 965336 (1910-07-01), Schmidt
patent: 2030527 (1936-02-01), Meyer
patent: 3257110 (1966-06-01), Smethurst
patent: 3515056 (1970-06-01), Johnson
patent: 4297066 (1981-10-01), Ramcke

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