(19)

(11)

EP 2 670 671 A2

(12)

(88) Date of publication A3: 26.10.2012 (43) Date of publication: 11.12.2013 Bulletin 2013/50 (21) Application number: 12704531.8 (22) Date of filing: 06.02.2012

(51) International Patent Classification (IPC):  B65B 21/14(2006.01) (86) International application number: PCT/GB2012/050252 (87) International publication number: WO 2012/104661 (09.08.2012 Gazette 2012/32)

(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: 04.02.2011 GB 201101973 26.08.2011 GB 201114731 (71) Applicant: Knight Warner (Control Systems) Limited Chesterfield, Derbyshire S43 3LS (GB)	(72) Inventor: POWELL, Colin Derbyshire S43 3LS (GB) (74) Representative: Wood, Graham  Bailey Walsh & Co LLP 5 York Place, Leeds LS1 2SD Leeds LS1 2SD (GB)