(19)

(11)

EP 0 281 573 A1

(12)

(43) Date of publication: 14.09.1988 Bulletin 1988/37 (21) Application number: 87904402.0 (22) Date of filing: 13.07.1987

(51) International Patent Classification (IPC):  B60P 1/ 02( . ) (86) International application number: PCT/GB1987/000494 (87) International publication number: WO 1988/000538 (28.01.1988 Gazette 1988/03)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 14.07.1986 GB 19860017088 (71) Applicant: HYDRAROLL LIMITED Anglesey Gwynedd LL60 6HR (GB)	(72) Inventor: JONES, Joseph, Morus Anglesey Gwynedd (GB) (74) Representative: Johnson, Terence Leslie, et al  Edward Evans & Co. Chancery House 53-64 Chancery Lane London WC2A 1SD London WC2A 1SD (GB)