Feed roll tensioning device

Details Feed roll tensioning device Feed roll tensioning device

1985-12-06

1987-02-17

Bray, W. D.

Woodworking

Bark rosser

Tree climber

144340, B27L 502

Patent

active

046432361

ABSTRACT:
A log debraking machine including a rotor having a central opening and a plurality of debarking tools, a rotating means for rotating said rotor about its longitudinal axis, and a feeding means including a plurality of log gripping rollers positioned for rolling contact with the logs and for feeding logs in the direction of the longitudinal axis. The log gripping rollers are supported for movement toward and away from the longitudinal axis of the rotor, and apparatus is provided for biasing the rollers toward the longitudinal axis of the rotor. The apparatus for biasing applies a reduced force on the rollers when the rollers are between a first closed position adjacent the longitudinal axis and a first outward position and an increased force on the rollers when the rollers are positioned between a first outward position and an open position.

REFERENCES:
patent: 2785715 (1957-03-01), Brundell et al.
patent: 2857945 (1958-10-01), Brundell et al.
patent: 2860672 (1958-11-01), Brundell et al.
patent: 2903028 (1959-09-01), Baundell et al.
patent: 4585042 (1986-04-01), Hutson

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