Gear cutting – milling – or planing – Milling – Randomly manipulated – work supported – or work following device
Patent
1998-09-28
2000-05-23
Briggs, William
Gear cutting, milling, or planing
Milling
Randomly manipulated, work supported, or work following device
33197, 144 27, 14414451, 409175, B23C 900
Patent
active
060659130
ABSTRACT:
The present invention concerns an apparatus for allowing the operator of a plunge router to make accurate mortising or doweling cuts in a workpiece and more particularly to allow dowel holes or mortises to be executed in pieces of wood which are to be secured together. The apparatus comprises a base plate having adjustable lateral guides flanking an opening in the base for allowing the passage of a router bit. Removably securable to the base plate is a reversible member or gate including adjustable end guides such that removal and reversal of the gate member permits the user to perform an identical mirror image operation on the second of two workpieces to be matched.
REFERENCES:
patent: 3800840 (1974-04-01), McCord, Jr.
patent: 5040581 (1991-08-01), Takashima
patent: 5114265 (1992-05-01), Grisley
patent: 5154214 (1992-10-01), Hagerman
patent: 5203389 (1993-04-01), Goodwin
patent: 5240052 (1993-08-01), Davison
patent: 5249614 (1993-10-01), Osborn
patent: 5325899 (1994-07-01), Kochling
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