Log splitting attachment

Details Log splitting attachment Log splitting attachment

1978-09-22

1980-02-19

Spruill, Robert L.

Woodworking

Splitting machine

Tapered or wedge shaped product

144194, 145116R, B27L 700

Patent

active

041889878

ABSTRACT:
Disclosed herein is an attachment adapted to be engaged to the power head of a chain saw, said attachment including chain reduction to drive a shaft terminating in a tapered screw. The shaft itself is provided with spline cuts along the longitudinal exterior thereof on which yet another tapered frustum is engaged. The frustum is biased away from the end screw by a return spring, the tapered screw being cut with a low pitch thread on the exterior thereof while the frustom being provided with a substantially higher pitched exterior threading. Formed adjacent the shaft is a torque reaction wedge extending proximate the tapered screw, the wedge being insertable into the split formed by the screw to oppose any torsion generated thereby.

REFERENCES:
patent: 1319656 (1919-10-01), Mervin
patent: 2659255 (1953-11-01), Bates
patent: 3180379 (1965-04-01), Stewart
patent: 3670789 (1972-06-01), Long
patent: 3982572 (1976-09-01), Kortendick
patent: 3993113 (1976-11-01), Thackery
patent: 4026337 (1977-05-01), Thackery
patent: 4027709 (1977-06-01), Thackery
patent: 4076062 (1978-02-01), Kanik
patent: 4091851 (1978-05-01), Ober
patent: 4121636 (1978-10-01), James

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