Cutlery – Cutting tools – Saw
Patent
1981-06-08
1983-03-29
Peters, Jimmy C.
Cutlery
Cutting tools
Saw
B27B 1702
Patent
active
043779107
ABSTRACT:
A chainsaw attachment for indicating a sawing point on a workpiece, having a support having at least two arms with grip portions clampable to the chain guide bar of the chainsaw for holding a rule substantially perpendicular to the plane of sawing with the end of the rule opposite a reference point on the workpiece. The support shown comprises two independently formed arms positioned on opposite sides of the chain guide bar, connected by a threaded connector and arranged to pivot about a fulcrum to tightly engage the chain guide bar. Each arm shown has a hole in one end slightly larger than the rule, a grip portion on the other end, and a fulcrum region between the hole end and the grip portion so arranged that when the threaded connector is tightened, the fulcrum regions bear against one another, the grip portions are drawn together to clamp the support to the guide bar, and the hole ends are forced apart causing the hole perimeters to bind against and hold a rod-form rule firmly in a selected position. Each arm is contoured to avoid interference with the chain of the chainsaw. The rule can have distance marks visible between the hole ends of the arms to permit accurate distance settings.
REFERENCES:
patent: 2807292 (1957-09-01), Gelinas
patent: 3276490 (1966-10-01), Johansson
patent: 3364580 (1968-01-01), Lucia
patent: 4185382 (1980-01-01), Rawlinson, Jr.
patent: 4233739 (1980-11-01), Hinrichs
patent: 4275504 (1981-06-01), Chontos
patent: 4341018 (1982-07-01), Nelson
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