Geometrical instruments – Gauge – Work support adjustment
Patent
1989-08-14
1991-05-21
Haroian, Harry N.
Geometrical instruments
Gauge
Work support adjustment
83437, 83421, 33430, 33465, 144136R, B27B 2510
Patent
active
050163582
ABSTRACT:
A combination simple and compound mitre gauge along with a precision split fence constitute the subject matter of the present invention. Both the mitre gauge and fence are intended to be utilized with power woodworking tools. The mitre gauge constitutes both a simple and compound gauge by utilizing an elongated member which slides in a groove on the supporting table and a suppport plate coupled with the member which is movable about a vertical axis and can be held in a given position by appropriate locking means. The support plate presents a vertical surface which mounts a guide that can be moved into one of two positions to vary the length of it. The guide may also be removed and a planar surface presenting shoe pivotally coupled with the support plate. The angle of the planar surface of the shoe may be varied and means is provided for locking the shoe in any given position. Thus, the planar work piece supporting surface of the mitre gauge is movable about both horizontal and vertical axes so as to accommodate any desired angle of contact between the work piece and the cutting tool. The guide fence of the invention employs two mirror image L-shaped brackets each of which has a vertical guide plate that presents a guide surface in perpendicular relationship to the supporting table and means presenting an aligning surface in spaced relationship to the guide surface. In this manner, one half of the fence may be squared followed by movement of the other half of the fence a desired distance and it may then be squared utilizing the two aligning surfaces which can be locked together.
REFERENCES:
patent: 2696854 (1954-12-01), Woodruff
patent: 2884965 (1959-05-01), Stahl
patent: 4259887 (1981-04-01), Dean
patent: 4454793 (1984-06-01), Strong
patent: 4763706 (1988-08-01), Rice et al.
Keener Richard A.
Rice Verle L.
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