(19)

(11)

EP 3 314 069 A1

(12)

(43) Date of publication: 02.05.2018 Bulletin 2018/18 (21) Application number: 16732723.8 (22) Date of filing: 24.06.2016

(51) International Patent Classification (IPC):  E04F 13/08(2006.01) E04B 1/76(2006.01) (86) International application number: PCT/GB2016/051895 (87) International publication number: WO 2016/207648 (29.12.2016 Gazette 2016/52)

(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 Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 26.06.2015 GB 201511292 12.01.2016 GB 201600576 04.05.2016 GB 201607808 (71) Applicant: SIG PLC Sheffield, South Yorkshire S6 2LW (GB)

(72) Inventors: O'KANE, Chris Sheffield South Yorkshire S6 2LW (GB) GRAY, Mark Sheffield South Yorkshire S6 2LW (GB) SMITH, Wayne Sheffield South Yorkshire S6 2LW (GB) MITTON, Paul Sheffield South Yorkshire S6 2LW (GB) ECKERS, Nick Welwyn Garden City Hertfordshire AL7 1AD (GB) (74) Representative: Neilson, Martin Mark  Urquhart-Dykes & Lord LLP Arena Point Merrion Way Leeds LS2 8PA Leeds LS2 8PA (GB)