(19)

(11)

EP 3 797 199 A1

(12)

(43) Date of publication: 31.03.2021 Bulletin 2021/13 (21) Application number: 19716478.3 (22) Date of filing: 13.03.2019

(51) International Patent Classification (IPC):  E04H 15/08(2006.01) (86) International application number: PCT/GB2019/050712 (87) International publication number: WO 2019/224507 (28.11.2019 Gazette 2019/48)

(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: KH MA MD TN (30) Priority: 23.05.2018 GB 201808499 (71) Applicant: AMG Group Limited Port Glasgow Renfrewshire PA14 6TD (GB)	(72) Inventors: MORE, James Glasgow, Renfrewshire PA14 6TD (GB) KERR, Lisa May Glasgow, Renfrewshire PA14 6TD (GB) (74) Representative: Lawrie IP Limited  310 St. Vincent Street Glasgow G2 5RG Glasgow G2 5RG (GB)