Two-way band saw machine

Cutting – Other than completely through work thickness or through work... – Combined types of cutting

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Details

83801, 83810, 83814, 83820, 83827, 83829, 83871, B23D 5304, B26D 154

Patent

active

048542083

ABSTRACT:
To cut a workpiece along two different cutting directions, the band saw teeth are set horizontally by a band saw guide device and then the cutting head (CH) is moved frontward, for instance; thereafter, the band saw teeth are twisted downward by the same guide device and then the cutting head is moved downward. The machine is effectively usable in cutting off a test piece from a large workpiece. To improve the cutting precession, various novel devices are incorporated, such as a balance cylinder (B-CYL) for allowing the cutting head to move up and down smoothly; two back-and-forth cylinders (BF-CYL) for moving the cutting head back and forth in symmetrical pressure application; cutting head fix device (FD); a rigid guide column; band saw holding device (BSH); a slidable small-diameter driven wheel arranged within the cutting head (CH), etc.

REFERENCES:
patent: 567859 (1986-09-01), Martin
patent: 916248 (1909-03-01), Ansley
patent: 2705510 (1955-04-01), Stocke
patent: 2774131 (1956-12-01), Crane
patent: 2782811 (1957-02-01), Johnson
patent: 3587378 (1971-06-01), Oppenheim et al.
patent: 3815465 (1974-06-01), Smierciak
patent: 4014235 (1977-03-01), Fukami
patent: 4111085 (1978-09-01), Johnson
patent: 4241635 (1980-12-01), Sugimoto
patent: 4559858 (1985-12-01), Laskowski et al.

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