(19)

(11)

EP 2 593 758 A1

(12)

(43) Date of publication: 22.05.2013 Bulletin 2013/21 (21) Application number: 11721568.1 (22) Date of filing: 28.04.2011

(51) International Patent Classification (IPC):  G01G 19/58(2006.01) (86) International application number: PCT/GB2011/000674 (87) International publication number: WO 2011/135317 (03.11.2011 Gazette 2011/44)

(84) Designated Contracting States: AL 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 RS SE SI SK SM TR (30) Priority: 30.04.2010 GB 201007263 (71) Applicant: Palmer, Peter Coalville, Leicester LE67 4EE (GB)	(72) Inventor: Palmer, Peter Coalville, Leicester LE67 4EE (GB) (74) Representative: Jacob, Reuben Ellis et al R.G.C. Jenkins & Co 26 Caxton Street London SW1H 0RJ London SW1H 0RJ (GB)