Knife holder in log slabbing chipper

Details Knife holder in log slabbing chipper Knife holder in log slabbing chipper

1977-04-22

1978-04-04

Schran, Donald R.

Woodworking

Rotary cutter

Frusto-conical

83698, 144162R, 407 49, B27G 1304

Patent

active

040821277

ABSTRACT:
A chipper comprises a rotor with a plurality of knives adapted to slab off the side of a log so that the first saw cut following the chipper removes a usable board. In order to make usable pulp chips, the chipper knives are of bent configuration each having a grain cutting portion which cuts across the grain and a planing portion which cuts parallel with the grain to leave a smooth board surface on the log as it is moved lengthwise past the chipper on a saw carriage. Each knife is clamped rigidly in working position by a cambered clamp plate which is pivoted into clamped position in a manner causing it to flatten against substantially the whole area of the knife. A backing bar and wedge assembly provides fine adjustment for the knife.

REFERENCES:
patent: 3282312 (1966-11-01), Standal
patent: 3570567 (1971-03-01), Hickman
patent: 3777793 (1973-12-01), Miller
patent: 3865164 (1975-02-01), Sybertz
patent: 3957094 (1976-05-01), Maier

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