(19)

(11)

EP 2 391 774 A1

(12)

(43) Date of publication: 07.12.2011 Bulletin 2011/49 (21) Application number: 10706727.4 (22) Date of filing: 29.01.2010

(51) International Patent Classification (IPC):  E02D 3/074(2006.01) F16H 55/56(2006.01) (86) International application number: PCT/GB2010/050148 (87) International publication number: WO 2010/086669 (05.08.2010 Gazette 2010/31)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 30.01.2009 GB 0901587 03.02.2009 GB 0901738 (71) Applicant: Belle Engineering (Sheen) Limited Buxton, Derbyshire SK17 OEU (GB)	(72) Inventor: HALL, Martin Buxton, Derbyshire SK17 0NZ (GB) (74) Representative: Keltie, David Arthur  Keltie LLP Fleet Place House 2 Fleet Place London EC4M 7ET London EC4M 7ET (GB)