(19)

(11)

EP 0 282 511 A1

(12)

(43) Date of publication: 21.09.1988 Bulletin 1988/38 (21) Application number: 87905467.0 (22) Date of filing: 28.08.1987

(51) International Patent Classification (IPC):  A01G 1/ 04( . ) (86) International application number: PCT/GB1987/000605 (87) International publication number: WO 1988/001472 (10.03.1988 Gazette 1988/06)

(84) Designated Contracting States: FR GB NL (30) Priority: 01.09.1986 GB 19860021119 (71) Applicant: THOMPSON, Barry Anthony Newark Nottinghamshire NG24 2LB (GB)	(72) Inventor: THOMPSON, Barry Anthony Newark Nottinghamshire NG24 2LB (GB) (74) Representative: Bassett, Richard Simon  ERIC POTTER & CLARKSON St. Mary's Court St. Mary's Gate Nottingham NG1 1LE Nottingham NG1 1LE (GB)