Tree shear with spherical blades

Details Tree shear with spherical blades Tree shear with spherical blades

1976-10-13

1978-01-24

Hinson, Harrison L.

Woodworking

Special-work machine

Tree felling

144 3D, A01G 2308

Patent

active

040698475

ABSTRACT:
A tree-shear apparatus includes two blades, each having a spherical blade portion. The blades are pivotally mounted relative to a frame, with the pivot axes of the blades and the radii of the spherical blade portions being arranged to provide that a true spherical cut of a tree is achieved.

REFERENCES:
patent: 3540501 (1970-11-01), Jonsson
patent: 3817303 (1974-06-01), Kantola et al.
patent: 3854510 (1974-12-01), Matlik
patent: 3857425 (1974-12-01), Wiklund
patent: 3968821 (1976-07-01), Jonsson

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