| 摘要 |
An adapter having particular application to quickly and easily convert a portable worm driven circular power saw into a sprocket driven chain saw. The adapter comprises an adjustable compression ring portion which is adapted to be attached to the existing bearing plate of the circular saw without requiring a removal of the bearing plate. Coextensively formed with the adapter compression ring portion is a base portion having a structure which permits a cutting chain bar and a cutting chain safety guard to be connected to opposite faces of the base portion. Thus, a circular cutting blade may be replaced by a cutting chain, and vice versa, without removing the existing bearing plate, as is commonly required when a conventional converison apparatus is utilized.
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