Cutting – By endless band or chain knife – With tool in-feed
Patent
1984-04-05
1987-04-28
Yost, Frank T.
Cutting
By endless band or chain knife
With tool in-feed
83574, 83661, 83813, 83824, B27B 1502
Patent
active
046604545
ABSTRACT:
A portable bandsaw mill, readily made sufficiently light in weight to be carried by two people, having a saw unit supported on rollers, so that the saw unit can be readily guided and the cut controlled and adjusted manually. A ground-supported support frame or unit provides guide tracks spaced apart on opposite sides of a log or other workpiece, on which the saw unit can be rollingly advanced. The ends of the guide tracks are supported in end frames by structure enabling the levels of the guide tracks to be conveniently adjusted for successively lower passes of the saw unit through the log. Guide beam ends are capable of independent adjustment to accommodate differences in level between the four corners of the support unit. A manually advanced rolling saw head of the saw unit includes two bandsaw pulleys, each having a bandsaw blade entrained thereon, one being an idler pulley and the other a drive pulley. The drive pulley, rotatably driven, can be powered by a hydraulic motor, with the actual pressure fluid source separate from the mill. The motor can be readily separable from the saw unit for use in powering other apparatus. The mill can be readily employed for rip sawing logs into boards at any convenient location for example the felling site.
REFERENCES:
patent: 2722953 (1955-11-01), Lee
patent: 3154839 (1964-11-01), Kleber, Jr. et al.
patent: 3374812 (1968-03-01), McManama
patent: 3530908 (1970-09-01), Crow
patent: 3695316 (1972-10-01), Pluckhahn
patent: 3954037 (1976-05-01), Rios
patent: 4275632 (1981-06-01), Ross
patent: 4476940 (1984-10-01), Reichert et al.
Phan Hien H.
Yost Frank T.
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