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US 5,139,060 AGranted
Duplication attachment for wood turning lathes
OwnerJames A. Slikerinventor
Life of this patent
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OwnerJames A. Slikerinventor
Estimating the term…
A duplicator attachment for a wood turning lathe which provides the same freedom and control of the cutting action as in normal freehand turning operations, and enables duplication of all contours including inside contours and bowls. The duplicator attachment also enables the pattern to be supported on the same vertical center as the workpiece and above the workpiece rather than below or to the side of the workpiece, thereby permitting the full swing of the lathe to be utilized. The duplicator attachment provides an articulated support arm to bring the cutting tool and tracer, respectively, against the workpiece and pattern to be duplicated. The support arm has three sections which rotate conjointly to provide for movement of the cutting tool and tracer longitudinally along the center line of the lathe, laterally perpendicular to the center line of the lathe, and rotationally about axes mutually perpendicular to the directions of the lateral and longitudinal movements. A handle, attached to the support arm member to which the cutting tool and tracer is attached, permits manipulation, by an operator, of the cutting tool and tracer simulating freehand cutting action.
A duplicator attachment for use on a turning lathe having a bed and a drive head which rotates a workpiece about a centerline of the lathe to enable cutting the workpiece into a duplicate of a pattern, which is mountable in spaced relationship with said pattern on said lathe, said attachment comprising an articulated support arm having a plurality of sections, a holder for a cutting tool for cutting said workpiece, tracer means for tracing said pattern, a first of said plurality of sections having said holder and tracer means mounted thereon in spaced relationship corresponding to the relationship of said workpiece and pattern, a second and a third of said plurality of sections, means for supporting said attachment on the bed of said lathe, means for attaching said first section to said second section for rotation about first axis, means for attaching said second section to said third section for rotation about a second axis different from said first axis, means for attaching said third section to said supporting means for rotation about a third axis, and means for manipulating said first section to move said cutting tool and said tracer into contact with and with respect to said workpiece and said pattern, respectively.
Dependencies are inferred from the claim text.