Adjustable sub-base for fixed-base router

Details Adjustable sub-base for fixed-base router Adjustable sub-base for fixed-base router

1998-06-24

1999-06-08

Howell, Daniel W.

Gear cutting, milling, or planing

Milling

Process

14413695, 409182, B23C 120

Patent

active

059099879

ABSTRACT:
A simple and quick manner for centering a sub-base of a fixed-base router. The sub-base is provided with two sets of peripheral holes and a large central opening. One set of holes is countersunk and receives flat-head screws; the other set of holes is counterbored and receives pan-head screws. The router is sent from the factory with the sub-base attached by the flat-head screws. To center the sub-base the flat-head screws are removed and the pan-head screws are inserted to loosely mount the sub-base. The counterbored openings are oversized to allow lateral movement of the sub-base. A cone element is installed in the collet and engaged with the sub-base through the central opening. The cone element fully abuts the opening to center the sub-base, the pan-head screws are tightened and the cone element is replaced by a router bit.

REFERENCES:
patent: 1899883 (1933-02-01), Sacrey
patent: 4652191 (1987-03-01), Bernier
patent: 5016691 (1991-05-01), Bernier

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