Template controlled trueing device with an adjustable template follower

Claim 1

A template trueing device for grinding discs having at least a pair of straight-lined profile sides, comprising: a slide support; a horizontal slide movably mounted on said slide support for movement parallel to the grinding disc axis; a vertically elongated copying slide mounted on said horizontal slide for movement therewith and for movement at right angles to the grinding disc axis; a shaping diamond mounted on said copying slide adjacent the bottom end thereof, the trimming surfaces of said shaping diamond extending parallel to said pair of profile sides; scanning means mounted on said copying slide adjacent the upper end thereof for scanning the profile of a stationary template arranged on the slide support by means of scanning surfaces extending parallel to the profile sides of the template, said scanning means including two scanning spurs adjacent the upper end thereof and adjustment means for effecting a displacement of said scanning spurs relative to each other parallel to the grinding disc axis, said adjustment means also facilitating a locking of said scanning spurs in a fixed position, one of said scanning spurs being adapted to scan a scanning surface of one profile side of the template and the other of said scanning spurs being adapted to scan a scanning surface of the other profile side of the template.