(19)

(11)

EP 0 512 994 A1

(12)

(43) Date of publication: 19.11.1992 Bulletin 1992/47 (21) Application number: 90914553.0 (22) Date of filing: 01.10.1990

(51) International Patent Classification (IPC):  D04C 1/ 12( . ) D04C 1/ 06( . ) D04C 1/ 02( . ) F16G 11/ 02( . ) (86) International application number: PCT/GB1990/001498 (87) International publication number: WO 1992/006235 (16.04.1992 Gazette 1992/09)

(84) Designated Contracting States: DE ES FR GB IT NL (71) Applicants: THE BENTLEY-HARRIS MANUFACTURING COMPANY Lionville, PA 19353 (US) T&N PLC Manchester M17 1RA (GB)	(72) Inventor: GLADFELTER, Harry, Foster Phoenixville, PA 19460 (US) (74) Representative: Crux, John Anthony (GB)  T & N plc Bowdon House Ashburton Road West Trafford Park GB-Manchester M17 1RA GB-Manchester M17 1RA (GB)