DISPOSITIF DESTINE A MAINTENIR UN TAMPON ABRASIF SUR UN POLISSOIR DANS UN APPAREIL DE FABRICATION DE LENTILLES POUR VERRES OCULAIRES

摘要

A retainer for retaining an abrasive pad on a lens making machine and an abrasive pad adapted to such retention comprises a retainer nestable with a lap of a lens making machine wherein when such retainer is nested, a pad placed upon said lap before nesting will be trapped in the desired position. The pad of the invention includes radially outwardly extending members beyond the working area of the pad whose purpose is to be trapped by the retainer. The invention enables automatic loading and unloading of pads on the lens making machine.