Alphonso K Welch

US Patent:

42443474, Jan 13, 1981

Filed:

Jan 29, 1979

Appl. No.:

6/007333

Inventors:

Alphonso K. Welch - High Point NC

Assignee:

Abrasives & Air Equipment Co. - High Point NC

International Classification:

B24B 5308

US Classification:

125 11PH

Abstract:

A portable profile shaping device is positioned on a table beside the shaft of a spindle sander having a rotary sanding wheel to be shaped mounted thereon. As the device is activated a shaping tool is manually moved in an axial direction along the surface of the rotating sanding or grinding wheel. Simultaneously the tool is automatically adjusted radially responsive to a follower arm which follows the pattern or contour of a wooden molding piece of a shape for which the grinding or sanding wheel is being cut. A hydraulic cylinder activates the radial movement of the shaping tool. The fluid for the hydraulic cylinder is controlled by a valve which is mechanically connected or linked to the follower arm for controlling the flow of fluid to the hydraulic cylinder responsive thereto. The sanding wheel is actually shaped while mounted on the same spindle on which it is going to be used for sanding subsequent molding strips so that misalignment of the wheel is prevented. Such misalignment can occur because of the movement of the sanding wheel from one spindle to another.