(19)
(11) EP 0 016 524 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
29.10.1980 Bulletin 1980/22

(43) Date of publication A2:
01.10.1980 Bulletin 1980/20

(21) Application number: 80300382

(22) Date of filing: 11.02.1980
(84) Designated Contracting States:
AT BE CH DE FR IT LU NL SE

(30) Priority: 15.02.1979 GB 7905308

(71) Applicant: RODWAY OPTICAL INDUSTRIES LIMITED
 ()

(72) Inventors:
  • Moody, Bryan Malcolm
     ()
  • Bennett, Brian
     ()

   


(54) Improvements in or relating to lens edge grinding machines


(57) In a multi-wheel lens edge grinding machine of a type defined there is a difficulty in providing positive drive to displace the frame (16) between the different grinding positions whilst allowing theframeto "float" during the grinding operation. This difficulty is resolved by driving the frame via a cam plate engaged bythe frame and which plate affords positive transverse engagement with the frame whilst the frame is elevated and a less restricting engagement with the frame when the frame is lowered to a grinding position.






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