Cutting – With product handling means – Means to move – guide – or permit free fall or flight of product
Patent
1986-02-25
1987-06-30
Yost, Frank T.
Cutting
With product handling means
Means to move, guide, or permit free fall or flight of product
83282, 83460, 834712, 83486, 83488, 83520, B27B 504
Patent
active
046761306
ABSTRACT:
A carriage on the frame of a lumber edger is driven on tracks longitudinally from one limit to another. Two motors are arranged with their corresponding output shafts coaxial and facing each other. A saw blade is mounted to each shaft. The motors are mounted to laterally extending tracks on the carriage and actuators are provided for shifting the motors, and hence, the parallel saw blades toward and away from each other so that when the saws are translated longitudinally they will rip the irregular edges from a board. A chain conveyor runs through the machine frame and transports the boards to a position under the saws with the length of the boards directed longitudinally. When a rough board arrives under the saws the lines along which the saws will cut are marked on the board with parallel laser light beams. The saws are shifted laterally until the light lines are just inside of both rough edges. The board is then lifted off of the conveyor chains on a structural beam and clamped against a fixed structural beam. The carriage is then translated longitudinally and the saws rip off the edges.
REFERENCES:
patent: 3871258 (1975-03-01), Hurn
patent: 4104944 (1978-08-01), Janssen
patent: 4196648 (1980-04-01), Jones et al.
patent: 4212213 (1980-07-01), Wolfilsperger et al.
patent: 4257297 (1981-03-01), Nidbella
patent: 4281696 (1981-08-01), Howard et al.
patent: 4449558 (1984-05-01), Wiegand
patent: 4468992 (1984-09-01), McGeehee
patent: 4503740 (1985-03-01), Brand et al.
Filer & Stowell Co., Inc.
Yost Frank T.
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