Geometrical instruments – Straightedge type – Plural straightedges – relatively moveable
Patent
1988-03-21
1989-09-19
Haroian, Harry N.
Geometrical instruments
Straightedge type
Plural straightedges, relatively moveable
33471, B43L 706
Patent
active
048668532
ABSTRACT:
A system and method for determining cutting lines for cabinet top joinery without measurement of angles apparatus for apparatus for positioning against walls between which a cabinet top is to be installed and a transfer device for establishing a distance between a selected points on the apparatus. A saw guide incorporates a linkage arrangement adapted for mating with the transfer device so as to establish a cutting angle which bisects the angle of intersection of the walls. Another mechanism is provided to automatically determine offset cutting angles using only the transfer device.
REFERENCES:
patent: 2719548 (1955-10-01), Mitchell
patent: 2899750 (1959-08-01), Becroft
patent: 4562649 (1986-01-01), Ciauarella
Beusse James H.
Haroian Harry N.
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