First fully adjustable sawmill with precise rapid cut band saw

Details First fully adjustable sawmill with precise rapid cut band saw First fully adjustable sawmill with precise rapid cut band saw

1990-07-25

1991-07-30

Watts, Douglas D.

Cutting

By endless band or chain knife

With tool in-feed

8352217, 83524, 83813, 83818, 144378, B27B 1308, B27B 1502

Patent

active

050351664

ABSTRACT:
A sawmill includes a band saw mounted on a trolley. The trolley carries the band saw back and forth across the length of a log to cut it into boards. A log supporting table is adjustable to accomodate logs of various size. The trolley rails descend incrementally after each cut to reposition the band saw blade for the next cut. The length of each increment, or board thickness, is user selectable by way of an indexable detent bar and limit switch combination. The thickness across the board is held uniform by a pressurized bellows that maintains the proper blade strain in the band saw blade.

REFERENCES:
patent: 3374812 (1968-03-01), McManama
patent: 3721146 (1973-03-01), McManama
patent: 3954037 (1976-05-01), Rios
patent: 4275632 (1981-06-01), Ross
patent: 4289180 (1981-09-01), Weinzierl
patent: 4589320 (1986-05-01), Kaster
McDonough sales brochure, author and date unknown.
Paul Bunyan sales brochure, author and date unknown.
Pacific Sawmill sales brochure, author and date unknown.
Min-Max sales brochure, author unknown, drawing dated Feb. 15, 1983.

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