High speed sheet feeding apparatus

Details High speed sheet feeding apparatus High speed sheet feeding apparatus

1981-01-02

1982-11-23

Christian, Leonard D.

Advancing material of indeterminate length

By intermittent material-mover

Adjustable feeder

226158, B65H 1726

Patent

active

043601391

ABSTRACT:
Sheet feed apparatus for intermittently advancing a sheet, such as a thermoplastic sheet including a frame, sheet engaging mechanism reciprocally mounted on the frame for intermittently advancing the sheet, mechanism for reciprocally moving the sheet engaging mechanism in a to-and-fro path of travel including a stationary shaft and a rotatable shaft concentric with the stationary shaft, a primary crank arm fixed to the moveable shaft for rotation therewith, a secondary crank arm rotatably mounted on the primary crank arm for rotation relative thereto, and mechanism coupling the primary crank arm and the secondary crank arm for rotatably driving the secondary crank arm in a direction opposite the direction of rotation of the primary crank arm.

REFERENCES:
patent: 3073499 (1963-01-01), Middleton, Jr. et al.
patent: 3346923 (1967-10-01), Brown et al.
patent: 3650449 (1972-03-01), Mundus
patent: 3758011 (1973-09-01), Portmann
patent: 4011978 (1977-03-01), Lehmacher et al.

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