Cutting – Rotatable disc tool pair or tool and carrier – With means to support work relative to tool
Patent
1984-08-08
1986-04-29
Schran, Donald R.
Cutting
Rotatable disc tool pair or tool and carrier
With means to support work relative to tool
834861, 83488, 83743, 83578, B27B 702
Patent
active
045849188
ABSTRACT:
A portable sawmill is constructed to produce dimensioned lumber from logs in remote logging locations. The portable sawmill employs but a single, disk shaped rotating blade which is powered by a relatively low horsepower engine. The engine and blade are mounted upon a carriage which traverses the length of a log to effectuate first a horizontal cut and then a vertical cut with a single saw blade in returning along the length of the log. The blade is oriented for vertical cutting as it progresses along the track away from the operator. The orientation of the blade is automatically reversed at the remote end of the log. The saw blade then cuts the log while in a horizontal orientation as it returns to the operator position. The maximum speed of longitudinal traverse of the carriage is separately adjustable for both vertical and horizontal cuts. The operator is able to control engagement and disengagement of the longitudinal drive mechanism from the operator position at any position of the carriage along the log, so as to continuously adjust the carriage speed up to the maximum established.
REFERENCES:
patent: 1842114 (1932-01-01), Pratt
patent: 2254293 (1941-09-01), Kaehlert
patent: 4235140 (1980-11-01), Reece
patent: 4454794 (1984-06-01), Thornton
Stubbe Kenneth C.
Stubbe Richard J.
Schran Donald R.
Thomas Charles H.
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