(19)

(11)

EP 0 240 498 A1

(12)

(43) Date of publication: 14.10.1987 Bulletin 1987/42 (21) Application number: 86900205.0 (22) Date of filing: 12.12.1985

(51) International Patent Classification (IPC):  B41J 11/ 58( . ) B41J 29/ 06( . ) (86) International application number: PCT/GB1985/000582 (87) International publication number: WO 1986/003458 (19.06.1986 Gazette 1986/13)

(84) Designated Contracting States: DE FR (30) Priority: 12.12.1984 GB 19840031334 29.07.1985 GB 19850019061 13.08.1985 GB 19850020314 (71) Applicant: ALSTON ENGINEERING (PRESTON) LIMITED Preston, Lancashire PR1 6HA (GB)	(72) Inventor: GILLIBRAND, Michael, John Blackburn Lancashire BB1 8QT (GB) (74) Representative: Atkinson, Peter Birch  Marks & Clerk Suite 301 Sunlight House Quay Street Manchester M3 3JY Manchester M3 3JY (GB)