(19)

(11)

EP 0 912 127 A1

(12)

(43) Date of publication: 06.05.1999 Bulletin 1999/18 (21) Application number: 97932902.0 (22) Date of filing: 14.07.1997

(51) International Patent Classification (IPC):  E03C 1/ 04( . ) (86) International application number: PCT/GB1997/001903 (87) International publication number: WO 1998/002077 (22.01.1998 Gazette 1998/03)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 13.07.1996 GB 19960014776 (71) Applicant: DARYL INDUSTRIES LIMITED Merseyside L44 7HY (GB)	(72) Inventor: BERNSTEIN, Melville, Sydney Wallasey, Merseyside L44 7HY (GB) (74) Representative: Thomson, Paul Anthony  Potts, Kerr & Co. 15, Hamilton Square Birkenhead Merseyside L41 6BR Birkenhead Merseyside L41 6BR (GB)