(19)

(11)

EP 0 599 916 A1

(12)

(43) Date of publication: 08.06.1994 Bulletin 1994/23 (21) Application number: 92917483.0 (22) Date of filing: 20.08.1992

(51) International Patent Classification (IPC):  F16G 11/ 04( . ) F16G 11/ 10( . ) (86) International application number: PCT/GB1992/001536 (87) International publication number: WO 1993/004303 (04.03.1993 Gazette 1993/06)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL SE (30) Priority: 20.08.1991 GB 19910017994 16.12.1991 GB 19910026618 (71) Applicant: WINSTANLEY, James Hindley Green Wigan WN2 4XF (GB)	(72) Inventor: WINSTANLEY, James Hindley Green Wigan WN2 4XF (GB) (74) Representative: Goodwin, Mark, et al  Wilson, Gunn, M'Caw & Co., 41-51 Royal Exchange, Cross Street Manchester M2 7BD Manchester M2 7BD (GB)