Cutlery – Cutting tools – Saw
Patent
1994-10-11
1996-04-30
Watts, Douglas D.
Cutlery
Cutting tools
Saw
30382, 30383, B23D 5702, B23D 5900
Patent
active
055113150
ABSTRACT:
An attachment for a chain saw is provided for adapting the saw blade to cut small diameter branches without weakening the saw blade holder or causing undesired kickback or jamming. The attachment comprises a pair of L-shaped cutting bars attached on both sides of the saw blade holder and spaced sufficiently apart to accommodate the width of the cutting chain. The cutting bars comprise a support portion and an angle portion, the support portion positioned approximately midway along the length of the saw blade holder and extending along a line parallel to the longitudinal axis of the saw blade holder. The angle portion of the cutting bars projects beyond the lower edge of the blade, and forms a wedge shaped angle or bight between the saw blade attachment and the cutting chain. During use, small diameter branches are drawn towards the forwardly projecting angle portions, and are compressed into the wedge shaped angle or bight by the cutting chain of the chain saw, where the teeth of the saw cut through the branches. The bight area assists the operator to align and guide the branches into a stable cutting position away from the hands and face of the user, thereby stabilizing the branches and saw with respect to each other, and reducing the tendency for undesired jamming and kickback. Removal of the cutting bars enables the chain saw to be used in a normal mode for cutting large sized branches, logs, and the like.
REFERENCES:
patent: 2797717 (1957-07-01), Budd
patent: 2902065 (1959-09-01), Graves et al.
patent: 3680607 (1972-08-01), Robinson
patent: 4142292 (1979-03-01), Ulrich
patent: 4270272 (1981-06-01), Graham
patent: 4888872 (1989-12-01), Eistrat
Krawitz Willie
Watts Douglas D.
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