(19)

(11)

EP 0 332 610 A1

(12)

(43) Date of publication: 20.09.1989 Bulletin 1989/38 (21) Application number: 87904300.0 (22) Date of filing: 07.07.1987

(51) International Patent Classification (IPC):  F16D 65/ 54( . ) (86) International application number: PCT/GB1987/000475 (87) International publication number: WO 1989/000254 (12.01.1989 Gazette 1989/02)

(84) Designated Contracting States: DE FR GB (71) Applicant: POWELL, George Bertram Chepstow Gwent NP6 7NQ (GB)	(72) Inventor: POWELL, George Bertram Chepstow Gwent NP6 7NQ (GB)