(19)

(11)

EP 0 148 257 A1

(12)

(43) Date of publication: 17.07.1985 Bulletin 1985/29 (21) Application number: 84902733.0 (22) Date of filing: 03.07.1984

(51) International Patent Classification (IPC):  A01J 5/ 04( . ) (86) International application number: PCT/SE1984/000250 (87) International publication number: WO 1985/000270 (31.01.1985 Gazette 1985/03)

(84) Designated Contracting States: CH DE FR GB LI NL SE (30) Priority: 04.07.1983 NZ 20070002048 (71) Applicant: ALFA-LAVAL AGRI INTERNATIONAL AB S-147 00 Tumba (SE)	(72) Inventors: WHITTLESTONE, Walter, Georg Hamilton (NZ) EVANS, Claude, Richard Hamilton (NZ) (74) Representative: Simpson, Ronald Duncan Innes, et al  A.A.Thornton & Co. Northumberland House 303-306 High Holborn London WCIV 7LE London WCIV 7LE (GB)