公开(公告)号：US3522677A

公开(公告)日：1970-08-04

申请号：US3522677D

申请日：1967-05-01

申请人： TEXTRON INC

发明人： MCCALL RICHARD J ,  IRWIN ROBERT C

IPC分类号： B24B13/00 ,  B24B13/005 ,  B65H29/60 ,  C03B23/22 ,  B24B1/00

CPC分类号： C03B23/22 ,  B24B13/00 ,  B24B13/005 ,  B24B13/0052

公开(公告)号：US3624976A

公开(公告)日：1971-12-07

申请号：US3624976D

申请日：1969-03-21

申请人： TEXTRON INC

发明人： MCCALL RICHARD J ,  IRWIN ROBERT C

IPC分类号： B24B13/005 ,  B65H29/60 ,  C03B23/22 ,  B24B41/06

CPC分类号： C03B23/22 ,  B24B13/0052

摘要： A LENS BLOCK PROVIDED WITH REFERENCE SURFACES WHICH LOCATE THE LENS HORIZONTAL LAYOUT LINE AND PERMIT THE BLOCKED LENS TO BE PROPERLY CHUCKED, EITHER DIRECTLY OR BY AN ADAPTOR POSITIONED ON THE BLOCK, IN A LENS EDGE GRINDING MACHINE FOR ROUGH EDGING THE LENS BEFORE GENERATING THE SAME EMPLOYING THE SAME BLOCK USED FOR GENERATING THE LENS TO PRESCRIPTION. THE REFERENCE SURFACE ARE PROVIDED ON THE MOLDED LOW MELTING POINT METAL TYPE BLOCK BY A LENS BLOCKING APARATUS HAVING MATING REFERENCE MOLD SURFACS ON THE INTERIOR WALLS OF THE MOLD CAVITY.