ANORDNING FOR ATT I EN KANTSLIPMASKIN FOR FRAMSTELLNING AV SPECIALFACETTER, S K HIGH BEVEL EDGE, PA KANTERNA TILL ORUNDA GLASOGONGLAS STYRA ARBETSSTYCKESSPINDELNS AXIELLA RORELSE

摘要

Machine for edging and bevelling ophthalmic lenses comprising guide means for forming a small bevel on the edge of lenses having a relatively thick edge, said guide means comprising a guide member connected to the frame of the machine by means of a pair of links forming a parallel-link motion device, a pair of springs constantly urging said links to a stable position in which their longitudinal axes form a predetermined angle with the axis of the rotating spindle which supports the lens to be bevelled, a bearing member supported by a movable carrier for said spindle and urged for engagement with said guide member, one of the guide member and bearing member comprising a bar extending at right angles to the spindle axis and provided with coupling means capable of preventing any relative movement between the guide member and the bearing member in a direction at right angles to the spindle axis. The adjustments of the machine for forming the small bevel art thus greatly simplified.