Back to results
US 4,027,566 AGranted
Circle cutting attachment for band saw
OwnerThomas D. Harrillinventor
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerThomas D. Harrillinventor
Estimating the term…
A horizontal base including a plurality of side by side horizontally spaced apart parallel guides is provided and a follower is selectively removably engageable with any one of the guides for guided movement therealong. A workpiece support is rotatably supported from the follower for angular displacement about an upstanding axis substantially normal to the plane containing the guides and the base is stationarily positionable on the horizontal table of a band saw or jig saw and a workpiece to have a constant radius arcuate cut made therein may be supported from the workpiece support and angularly displaced therewith in order that the blade of the saw may make the desired arcuate cut. The spacing of the parallel guide with which the follower is guidingly engaged from the blade of the saw determines the radius of curvature of the arcuate cut to be made.
In combination with a cutting tool including a cutting element toward which a workpiece may be advanced along a predetermined path for cutting of said workpiece by said element, a base including a plurality of side by side parallel guides paralleling said path, a follower selectively removably engageable with any one of said guides for predetermined lateral adjustment of said follower relative to said path and guided movement of said follower along the selected guide in parallel relation relative to said path, a workpiece support rotatably supported from said follower for angular displacement about an axis substantially normal to a plane containing a pair of said guides, and support means supporting said base relative to said tool with said guides at least substantially paralleling said path.
Dependencies are inferred from the claim text.