Geometrical instruments – Straightedge type – Base attached
Patent
1979-06-27
1981-01-13
Haroian, Harry N.
Geometrical instruments
Straightedge type
Base attached
83745, B27B 904, B43L 700
Patent
active
042441188
ABSTRACT:
The alignment device is utilized for guiding a hand manipulated power tool on the surface of a planar workpiece and includes an elongate guide member having a guide surface for guiding the shoe of the power tool and an elongate gauge member having an alignment edge adapted to be aligned on and with a desired line of cut on the surface of a workpiece. The elongate gauge member is releasably fixed to the guide member. The guide surface is parallel spaced to the alignment edge a predetermined distance equal to the distance from the shoe of the power tool to the path of travel of the cutting member of the power tool. The device also includes clamps for holding the alignment device to the workpiece and mating coupling members at each end of the device so that two or more devices can be coupled together to provide a composite longer alignment device.
REFERENCES:
patent: 2548197 (1951-04-01), Conner
patent: 3830130 (1974-08-01), Moore
patent: 3915045 (1975-10-01), Kitzman
patent: 4059038 (1977-11-01), Rietema
patent: 4075920 (1978-02-01), Neal
Haroian Harry N.
Vigil Thomas R.
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