Chain saw bar attachment

Metal tools and implements – making – Saw-making or furbishing device or machine – Clamp

Patent

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Details

76 25A, B23D 6316

Patent

active

043555519

ABSTRACT:
A chain saw bar attachment is disclosed for a conventional chain saw bar which has a peripheral track for guiding a saw chain and which is detached from a chain saw. The attachment includes an elongated body, a mounting mechanism for mounting the body to the bar with a free end projecting outwardly beyond the connecting end of the bar, and a saw chain guiding member defining an arcuate guideway for receiving and guiding a saw chain carried by the bar from the track at one side edge of the bar, about the connecting end of the bar, and to the track at the other side edge of the bar as the saw chain is sharpened. In one form, the saw chain guiding member may comprise a sprocket wheel having teeth which engage links of a saw chain and a mechanism for turning the sprocket wheel to move the saw chain about the bar. In alternate forms, the guiding member may comprise a slotted roller wheel rotatably connected to the body or a stationary arcuate guideway defining member. The mounting mechanism permits selective sliding of the attachment toward the nose end of the bar to permit insertion and removal of the saw chain into the arcuate guideway and away from the nose end of the bar to apply the desired amount of tension to the saw chain.

REFERENCES:
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patent: 3191646 (1965-06-01), Merz
patent: 3414026 (1968-12-01), Merz
patent: 3768341 (1973-10-01), Fitzpatrick

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