(19)

(11)

EP 0 252 110 A1

(12)

(43) Date of publication: 13.01.1988 Bulletin 1988/02 (21) Application number: 87900242.0 (22) Date of filing: 30.12.1986

(51) International Patent Classification (IPC):  E02F 3/ 38( . ) (86) International application number: PCT/GB1986/000805 (87) International publication number: WO 1987/004202 (16.07.1987 Gazette 1987/15)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 08.01.1986 GB 19860000391 (71) Applicant: J.C. BAMFORD EXCAVATORS LIMITED Uttoxeter Staffordshire ST14 5JP (GB)	(72) Inventor: GILL, Peter, David Staffordshire ST14 7NJ (GB) (74) Representative: Leach, John Nigel, et al  FORRESTER & BOEHMERT Franz-Joseph-Strasse 38 D-80801 München D-80801 München (DE)