Woodworking – Special-work machine – Combined
Patent
1988-02-16
1989-02-21
Bray, W. Donald
Woodworking
Special-work machine
Combined
144193A, 144193E, 144246F, 144366, 144367, 144356, B27L 700
Patent
active
048056766
ABSTRACT:
An adjustable infeed ramp supports the input end of a main frame at a height to tilt the main frame to correspond to the inclination of a log in process. Pulled into the machine by a winch line, the leading end of the log is gripped by vertical feed rolls on a pair of side squeeze arms, a horizontal feed roll on a top squeeze arm and then by a horizontal top feed roll of hourglass shape just ahead of a vertical transverse shear blade. In a first operation the shear blade cuts less than entirely through the log and then moves away from the input end of the main frame, sliding the log, assisted by the feed rolls, farther into the machine. This movement pushes the leading end of the log through an adjustable splitter head assembly capable of splitting the leading end portion into two, three or six pieces, as desired. A second operation of the shear blade cuts off the leading end of the log and the shear blade returns back along the main frame to its starting position to repeat the cycle on another section of the log.
REFERENCES:
patent: 3624756 (1971-11-01), Mellgren
patent: 3955765 (1976-05-01), Gaitten
patent: 4353401 (1982-10-01), Schilling
patent: 4483379 (1984-11-01), Aikins, et al.
patent: 4510981 (1985-04-01), Biller
Bray W. Donald
Schermerhorn Lee R.
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