Machine for hewing square timbers

Details Machine for hewing square timbers Machine for hewing square timbers

1980-12-24

1984-04-10

Bray, W. D.

Woodworking

Combined machine

Planing and sawing

144 3P, 144181, 144246A, 144245A, 198624, B27C 900

Patent

active

044415362

ABSTRACT:
A machine for hewing squared timbers from round trunks, with the aid of rotary cutters, before which there is a set of guiding rollers for the trunk to be hewn. The machine comprises two cutter pairs disposed immediately after each other and the axes of which form an angle of 90.degree.. The set of trunk guiding rollers consists of at least one pair of pulling wheels with padded circumference and disposed thereafter a track-resembling pair of pulling roller units, all of which together move in a transverse direction following the thickness of the trunk that is being hewn, parallel, and feeding in a forward direction the trunk that is being hewn.

REFERENCES:
patent: 508147 (1893-11-01), Niethammer
patent: 641202 (1900-01-01), Garland
patent: 1670360 (1928-05-01), Johnson
patent: 1825041 (1931-09-01), Babare
patent: 2918952 (1959-12-01), Searle
patent: 3742993 (1973-07-01), Morton et al.
patent: 3833162 (1974-09-01), Sato
patent: 3866640 (1975-02-01), Sweet et al.
patent: 4102369 (1978-07-01), Rautio
patent: 4222420 (1980-09-01), Karlsson

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