Chain saw guide bar

Details Chain saw guide bar Chain saw guide bar

1977-01-27

1978-02-07

Watson, Robert C.

Cutlery

Cutting tools

Saw

B27B 1704

Patent

active

040719537

ABSTRACT:
In a chain saw guide bar which at its free end has a saw chain-supporting sprocket wheel journalled on a hub and surrounded by side plates of the guide bar, the side plates are embossed (shaped) in three concentric zones having progressive embossing depths providing, between the side plate and the sprocket wheel, a gap which progressively increases in width -- either step-by-step or continuously -- with the radial distance from the center of the sprocket wheel.

REFERENCES:
patent: 3878607 (1975-04-01), Ehlen et al.
patent: 3967378 (1976-07-01), Arff et al.

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