Apparatus for detecting the contact point between tool and workpiece of relatively inaccurate dimensions to produce relatively accurate working of a workpiece, in particular a workpiece made of glass

摘要

The object of the invention is to make the working operation on relatively inaccurate glass articles measurable in every respect and thus to optimise it. To date, the grinding depth has had to be left to a non-measurable combination of grinding pressure, cutting capacity of the grinding wheel and workpiece feed.