(19)

(11)

EP 0 065 949 A1

(12)

(43) Date of publication: 08.12.1982 Bulletin 1982/49 (21) Application number: 81901397.0 (22) Date of filing: 04.12.1980

(51) International Patent Classification (IPC):  B66C 1/ 00( . ) B66C 3/ 00( . ) (86) International application number: PCT/US1980/001647 (87) International publication number: WO 1982/001864 (10.06.1982 Gazette 1982/15)

(84) Designated Contracting States: FR GB SE (71) Applicant: CATERPILLAR TRACTOR CO. Peoria, Illinois 61629 (US)	(72) Inventors: MUNTJANOFF, John R. Aurora, IL 60506 (US) DAY, Dennis M. Hinckley, IL 60520 (US) (74) Representative: Jackson, Peter Arthur, et al  GILL JENNINGS & EVERY Broadgate House 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)