Abstract: The present invention relates to an apparatus for machining glass lenses, wherein said apparatus comprises the following members: a housing; a machining chamber located in said housing; a shaft for maintaining a glass lens and a machining device both arranged in the machining chamber; a cover for outwardly closing the machining chamber; a support for transporting a non-machined lens towards the shaft for maintaining the glass lens when the cover is shut; a detector for measuring the position of the non-machined lens as well as its angular position on the support, said detector being located in the area between the cover and the shaft for maintaining the glass lens; and a control device in the form of a computer. When grinding the glass lens using the machining device, the control device uses the data provided by the detector about the situation and the angular position of the non-machined lens in the shaft for maintaining the glass lens.

Abstract: A spectacle lens edging machine which supports a lens for rotation on coaxial half shafts, a grinding spindle with an axis parallel to the lens shafts, the grinding spindle is movable radially and axially relative to the shafts and has a grinding wheel thereon for grinding the periphery of a lens. An additional friction wheel driven grinding spindle for beveling the edges of the spectacle lens arranged on the bearing housing for the spindle and so moves radially and axially with the spindle. The grinding tool rotates on an axis extending radially to the axis of the spectacle lens and to the grinding spindle. An angular drive for the additional grinding tool includes a first friction wheel at the main grinding spindle and having a groove in its periphery and a second friction wheel extending into the groove with play to either contact one flank of the groove or to be out of contact therewith.