(19)

(11)

EP 0 547 066 A1

(12)

(43) Date of publication: 23.06.1993 Bulletin 1993/25 (21) Application number: 91913995.0 (22) Date of filing: 26.07.1991

(51) International Patent Classification (IPC):  B26B 11/ 00( . ) G10K 5/ 00( . ) (86) International application number: PCT/GB1991/001273 (87) International publication number: WO 1992/002341 (20.02.1992 Gazette 1992/05)

(84) Designated Contracting States: CH DE ES FR GB LI SE (30) Priority: 28.07.1990 GB 19900016626 (71) Applicant: CLAMASON INDUSTRIES LIMITED Kingswinford, West Midlands DY6 8XG (GB)	(72) Inventors: RIDDING, Anthony James, Rose Cottage Worcestershire DY14 9YA (GB) RANGER, Jeremy David Osborn Nr. Alton, Hampshire GU3 4HH (GB) (74) Representative: Makovski, Priscilla Mary, et al  BARKER, BRETTELL & DUNCAN 138 Hagley Road Edgbaston Birmingham B16 9PW Edgbaston Birmingham B16 9PW (GB)