Roller-guided feeding device for a wood working machine

Details Roller-guided feeding device for a wood working machine Roller-guided feeding device for a wood working machine

2006-05-30

2006-05-30

Bidwell, James R. (Department: 3651)

Conveyors: power-driven

Conveying system having plural power-driven conveying sections

Forming a single conveying path

C198S620000, C198S621100

Reexamination Certificate

active

07051864

ABSTRACT:
A roller-guided feeding device includes guiding rollers, an arm which is movable relative to the guiding rollers between initial and working position that are remote from and closer to the guiding rollers, respectively, and which has a feed-in roller, a pneumatic cylinder, and a piston rod connected to a piston in the cylinder. The piston rod is moved as a result of a difference in pressures in the cylinder so as to turn the arm. A servo valve member is disposed to control air flow into the cylinder so as to hold the feed-in roller at the working position and the initial position in response to a work signal from a sensor member and a start signal from a manually-operated actuator, respectively. In response to a pausing signal from the sensor member, the feed-in roller is held at a pausing position to serve as another initial position in a subsequent cutting operation.

REFERENCES:
patent: 3866640 (1975-02-01), Sweet et al.
patent: 4009632 (1977-03-01), Detjen
patent: 4143775 (1979-03-01), Shields
patent: 5123522 (1992-06-01), Comly, Jr.
patent: 5676238 (1997-10-01), Saastamo
patent: 6327888 (2001-12-01), Kadlec

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