(19)

(11)

EP 3 751 995 A1

(12)

(43) Date of publication: 23.12.2020 Bulletin 2020/52 (21) Application number: 19708630.9 (22) Date of filing: 20.02.2019

(51) International Patent Classification (IPC):  A01K 1/06(2006.01) F16C 29/10(2006.01) F16C 41/00(2006.01) F16C 29/04(2006.01) (86) International application number: PCT/GB2019/050473 (87) International publication number: WO 2019/162671 (29.08.2019 Gazette 2019/35)

(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: 20.02.2018 GB 201802709 (71) Applicant: F. Klucznik & Son Limited Adderley Green Stoke-on-Trent, Staffordshire ST3 5BW (GB)	(72) Inventor: ALLEN, Robert Edward Stoke-on-Trent Staffordshire ST3 5BW (GB) (74) Representative: Swindell & Pearson Limited  48 Friar Gate Derby DE1 1GY Derby DE1 1GY (GB)