(19)

(11)

EP 0 121 548 A1

(12)

(43) Date of publication: 17.10.1984 Bulletin 1984/42 (21) Application number: 83903300.0 (22) Date of filing: 10.10.1983

(51) International Patent Classification (IPC):  C02F 1/ 06( . ) (86) International application number: PCT/GB1983/000252 (87) International publication number: WO 1984/001570 (26.04.1984 Gazette 1984/11)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 09.10.1982 GB 19820028931 (71) Applicant: TOLLEY, Peter Robert Cheshire (GB)	(72) Inventor: TOLLEY, Peter Robert Cheshire (GB)