(19)

(11)

EP 0 961 538 A1

(12)

(43) Date of publication: 08.12.1999 Bulletin 1999/49 (21) Application number: 98900930.0 (22) Date of filing: 21.01.1998

(51) International Patent Classification (IPC):  A01D 34/ 42( . ) A01D 34/ 62( . ) (86) International application number: PCT/GB1998/000176 (87) International publication number: WO 1998/031211 (23.07.1998 Gazette 1998/29)

(84) Designated Contracting States: AT BE DE ES FR GB IT NL (30) Priority: 21.01.1997 GB 19970001180 (71) Applicant: Ransomes Jacobsen Limited Ipswich, Suffolk IP3 9QG (GB)	(72) Inventor: BROWN, David, John Ipswich IP2 8EF (GB) (74) Representative: Moir, Michael Christopher  Mathys & Squire 100 Gray's Inn Road London WC1X 8AL London WC1X 8AL (GB)