(19)

(11)

EP 0 208 685 A1

(12)

(43) Date of publication: 21.01.1987 Bulletin 1987/04 (21) Application number: 85901486.0 (22) Date of filing: 19.03.1985

(51) International Patent Classification (IPC):  B29C 43/ 18( . ) B29C 43/ 14( . ) B29C 44/ 12( . ) B29C 44/ 38( . ) B29C 45/ 26( . ) B32B 37/ 00( . ) B29K 105/ 06( . ) B29C 43/ 12( . ) B29C 43/ 20( . ) B29C 44/ 14( . ) B29C 45/ 14( . ) B30B 5/ 02( . ) B29K 105/ 04( . ) (86) International application number: PCT/GB1985/000107 (87) International publication number: WO 1985/004131 (26.09.1985 Gazette 1985/21)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 21.03.1984 GB 19840007309 (71) Applicant: H.R. SMITH (TECHNICAL DEVELOPMENTS) LIMITED Witney, Oxfordshire, 0X8 5TF (GB)	(72) Inventors: SINGH, Devendra Pal Herefordshire HR6 9QA (GB) ASHTON, John William Herefordshire HR6 9QA (GB)