Lathe duplicator
OwnerBrian L. Sutcliffeinventor
Life of this patent
Estimating the term…
Abstract
A lathe duplicator is constructed by mounting a conventional router on one arm of a member mounted to pivot on a guide rail. A second arm of the pivoting member is adapted to guide on a template to control the position of the router bit with respect to a revolving work stock. The router bit is oriented to rotate approximately normal the axis of rotation of the work stock. By rotating the template at the same rate as the work stock, complex surfaces, for example, gun stocks, can be duplicated. The template may be reversed in its direction of rotation to produce reverse surfaces on the work stock. The device is capable of producing spirals and other complex surface configurations.
Claims10
A duplicator comprising:
- first chucking means including a head stock and a tail stock arranged to hold a work piece for rotation around an axis joining said head stock and said tail stock;
- second chucking means arranged to mount for rotation around a reference axis a template with a selected surface configuration, the reference axis of said template being parallel the axis of rotation of said work piece;
- a guide rail mounted parallel to said axes of rotation and extending substantially the entire work piece capacity of said first chucking means;
- a carriage assembly mounted on said guide rail to slide longitudinally along substantially its entire length and to pivot around its axis, said assembly including:
- a first arm carrying a sensing probe located to contact said template surface when said assembly is caused to pivot on said guide rail and thereby to limit the degree of pivot of said assembly in accordance with the configuration of said template's surface;
- a second arm carrying a router bit and associated drive means to spin said bit around an axis approximately normal to the axis of rotation of said work piece, said bit extending from said second arm in a direction opposite the direction that said sensing probe extends from said first arm and being located to contact said work piece at a site determined by the location of said assembly longitudinally on said guide rail and the degree of pivot of said assembly as defined by said probe;
- and
- means for rotating a said work piece held in said first chucking means around said axis of rotation while said router bit is caused to spin.
Dependencies are inferred from the claim text.