Guide for hand-held power tools

Details Guide for hand-held power tools Guide for hand-held power tools

1990-01-02

1991-07-30

Haroian, Harry N.

Geometrical instruments

Straightedge type

Base attached

33 42, 30373, 83745, B27B 904, B43L 1302

Patent

active

050350617

ABSTRACT:
This invention provides a guide for hand held power tools for use in cutting sheet material and the like, comprising a T-square having a straight edge adapted to abut the edge of sheet material and an arm extending normal thereto across the sheet material having a hinged base plate capable of being fastened at adjustable locations along the arm at measured dimensions from the straight edge. Power tools, such as circular saws or routers, may be mounted on the base plate which is pivotal between a raised position in which the power tool is out of engagement with the sheet material and a lower position in which the cutting tool engages the material.

REFERENCES:
patent: 2529210 (1950-11-01), Butler
patent: 2651333 (1953-07-01), Spinney
patent: 2942633 (1960-06-01), King
patent: 3296702 (1967-01-01), Feddish
patent: 3927475 (1975-12-01), Chang
patent: 4128940 (1978-12-01), Ong
patent: 4202233 (1980-05-01), Larson
patent: 4483071 (1984-11-01), te Kolste
patent: 4522098 (1985-06-01), Bliss
patent: 4628608 (1986-12-01), Kuhlmann et al.
patent: 4751865 (1988-06-01), Buckalew

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