(19)

(11)

EP 0 598 766 A1

(12)

(43) Date of publication: 01.06.1994 Bulletin 1994/22 (21) Application number: 92916545.0 (22) Date of filing: 07.08.1992

(51) International Patent Classification (IPC):  A47G 19/ 22( . ) (86) International application number: PCT/GB1992/001465 (87) International publication number: WO 1993/003658 (04.03.1993 Gazette 1993/06)

(84) Designated Contracting States: AT BE DE DK ES FR GB GR IT NL SE (30) Priority: 17.08.1991 GB 19910018077 25.06.1992 GB 19920013491 (71) Applicant: Bass Public Limited Company Burton-on-Trent DE14 1JZ (GB)	(72) Inventors: CROMPTON, Ian Edward Burton-on-Trent, Staffordshire DE15 9BS (GB) HEGARTY, Paul Kevin Shenstone, Staffordshire WS14 OLU (GB) (74) Representative: Gilding, Martin John, et al  Eric Potter & Clarkson St. Mary's Court St. Mary's Gate Nottingham NG1 1LE Nottingham NG1 1LE (GB)