Method for root end cutting of lumber and a device for performin

Details Method for root end cutting of lumber and a device for performin Method for root end cutting of lumber and a device for performin

1975-06-12

1978-06-06

Simpson, Othell M.

Woodworking

Process

144 2R, 144242D, 144246R, 144312, 144323, B27C 900, B27B 3100

Patent

active

040930076

ABSTRACT:
A root end cutting device for automatically aligning and cutting off the root ends of pieces of lumber. A conveying means transversely conveys the lumber through the device. Each piece of lumber is marked with a photosensitive transverse mark to indicate the location of a cut or with a longitudinal mark to indicate a second cut is not necessary. Each piece of lumber is then end cut by a first cutting blade. The pieces of lumber with a transverse mark are then aligned with a second cutting blade to make a second cut at the transverse mark.

REFERENCES:
patent: 433080 (1890-07-01), Heule et al.
patent: 2403673 (1946-07-01), Mead
patent: 2876815 (1959-03-01), Rogers
patent: 3662798 (1972-05-01), Campbell
patent: 3756297 (1973-09-01), Heikinheimo
patent: 3884345 (1975-05-01), Tokuno
patent: 3885483 (1975-05-01), Ikeya et al.

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