(19)

(11)

EP 0 823 955 A1

(12)

(43) Date of publication: 18.02.1998 Bulletin 1998/08 (21) Application number: 96915081.0 (22) Date of filing: 01.05.1996

(51) International Patent Classification (IPC):  E02F 3/ 96( . ) E04G 23/ 08( . ) (86) International application number: PCT/GB1996/001040 (87) International publication number: WO 1996/035034 (07.11.1996 Gazette 1996/49)

(84) Designated Contracting States: AT BE CH DE ES FR GB IT LI NL SE (30) Priority: 01.05.1995 GB 19950008830 09.01.1996 GB 19960000349 (71) Applicant: Hawkins, Peter Arthur Taylor Wallingford, Oxon OX10 9BH (GB)	(72) Inventor: Hawkins, Peter Arthur Taylor Wallingford, Oxon OX10 9BH (GB) (74) Representative: Wolff, Francis Paul  Urquhart-Dykes & Lord (Reading), 1 Richfield Place, 12 Richfield Avenue Reading RG1 8EQ Reading RG1 8EQ (GB)