(19)

(11)

EP 0 468 964 A1

(12)

(43) Date of publication: 05.02.1992 Bulletin 1992/06 (21) Application number: 90901619.0 (22) Date of filing: 12.01.1990

(51) International Patent Classification (IPC):  H02G 3/ 00( . ) H02G 3/ 06( . ) H02G 3/ 04( . ) (86) International application number: PCT/GB1990/000044 (87) International publication number: WO 1990/013164 (01.11.1990 Gazette 1990/25)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI LU NL SE (30) Priority: 19.04.1989 GB 19890008818 (71) Applicant: SWIFTS OF SCARBOROUGH LIMITED Eastfield Scarborough YO11 3BY (GB)	(72) Inventor: DAVIES, Gareth, John 23 Main Street Scarborough YO13 9HJ (GB) (74) Representative: Denmark, James, et al  Bailey, Walsh & Co. 5 York Place Leeds LS1 2SD Yorkshire Leeds LS1 2SD Yorkshire (GB)