(19)

(11)

EP 0 960 294 A1

(12)

(43) Date of publication: 01.12.1999 Bulletin 1999/48 (21) Application number: 98903166.0 (22) Date of filing: 10.02.1998

(51) International Patent Classification (IPC):  F16H 55/ 30( . ) (86) International application number: PCT/GB1998/000397 (87) International publication number: WO 1998/036193 (20.08.1998 Gazette 1998/33)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE (30) Priority: 13.02.1997 GB 19970002910 (71) Applicant: RENOLD Plc Wythenshawe Manchester M22 5WL (GB)	(72) Inventors: CHRISTMAS, Michael, Charles Cheshire SK8 6DE (GB) BARLOW, Michael, David Cheadle,Cheshire SI8 3BW (GB) (74) Representative: Every, David Aidan, et al  MARKS & CLERK, Sussex House, 83-85 Mosley Street Manchester M2 3LG Manchester M2 3LG (GB)