Doweling jig

Details Doweling jig Doweling jig

1996-10-31

1998-07-21

DePumpo, Daniel G.

Geometrical instruments

Gauge

Center, point, distance between centers, or centerline location

33644, 269242, 408115R, G01D 2100, B25B 110

Patent

active

057820066

ABSTRACT:
A centering jig assembly for centering guide holes for a drill provides an improved adjustment feature, which avoids reliance on fasteners to fix the position of the screw device with respect to the clamp jaws. The jig assembly includes a first holding element having a first threaded bore extending therethrough and a first bearing face bearing against a first engagement surface of a work piece and a second holding plate member having a second bearing surface and a second bore extending therethrough for alignment with the first bore, the second bearing surface bearing against a second engagement surface of the work piece. A center axis of the first bore and a center axis of the second bore are collinear defining an axis of travel. The first and second plates are adapted to translate generally parallel with respect to each other along the axis of travel. The guide members interpose between the first and second holding plate members, with the guide member having a first guide surface and second guide surface, at least one guide hole extending from the first guide surface to the second guide surface. The second guide surface abuts the drilling surface of the work piece so that the first guide hole can be aligned on the surface of the work piece. A rod is provided extending through and adapted to engage the first and second bores of the first and second holding plate members such that rotational movement of the rod urges the first and second holding plate members along the axis of travel in opposite directions toward or away from the guide member. The rod includes a removable bushing for engaging one of the first and second bores.

REFERENCES:
patent: 612391 (1898-10-01), Ballou
patent: 1008926 (1911-11-01), Saylor
patent: 2211634 (1940-08-01), Baker
patent: 2602238 (1952-07-01), Wellman
patent: 2842860 (1958-07-01), Gray
patent: 3026748 (1962-03-01), Comorau
patent: 3807889 (1974-04-01), Kiezel
patent: 4981400 (1991-01-01), Stover
patent: 5308199 (1994-05-01), Juang
patent: 5407306 (1995-04-01), Klapperich
Photographs (3) of a prior art dowling jig sold more than a year before Oct. 31, 1996.

Affiliated with

Also associated with

Rating

Doweling jig does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Doweling jig, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Doweling jig will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1637283