Apparatus for sharpening chain saw chains

Details Apparatus for sharpening chain saw chains Apparatus for sharpening chain saw chains

1985-09-04

1987-10-13

Parker, Roscoe V.

Metal tools and implements, making

Saw-making or furbishing device or machine

Sharpening and gumming

76 77, B23D 6316

Patent

active

046990267

ABSTRACT:
A chain of a chain saw whose teeth are to be sharpened is mounted in a track (4) of a support table so that it can be indexed to a central cutting station whereupon a ram (12) will be acuated to reduce the width of the track (4) and grip the chain. A cutting device will then be lowered into contact with a tooth on the chain so as to sharpen that tooth. When the ram (12) is moved to the open condition the chain is indexed forward again by rotating a pusher arm (8) about a pin (9) while the pin carried on its own arm is driven in a forward direction. This causes an angled forked plate (10) to engage behind a tooth facing in one direction only (of the two possible directions). As the pusher (8) is moved back again a pin (29) rides up over a latch (30) onto the top face of the cam (31) so that the plate (10) can ride over the top of subsequent teeth carried by the chain.

REFERENCES:
patent: 2300648 (1977-04-01), Stier
patent: 3349645 (1967-10-01), Silvey
patent: 4102223 (1978-07-01), Robinson et al.
patent: 4370905 (1983-02-01), Simington
patent: 4416169 (1983-11-01), Silvey

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