(19)

(11)

EP 0 139 695 A1

(12)

(43) Date of publication: 08.05.1985 Bulletin 1985/19 (21) Application number: 84901440.0 (22) Date of filing: 14.03.1984

(51) International Patent Classification (IPC):  B21C 9/ 00( . ) G01R 31/ 02( . ) F16N 29/ 00( . ) (86) International application number: PCT/SE1984/000090 (87) International publication number: WO 1984/003751 (27.09.1984 Gazette 1984/23)

(84) Designated Contracting States: BE CH DE FR GB LI (30) Priority: 16.03.1983 SE 19830001441 (71) Applicant: NILSSON, Bruno S-954 00 Gammelstad (SE)	(72) Inventor: NILSSON, Bruno S-954 00 Gammelstad (SE) (74) Representative: Onn, Christer, et al  AWAPATENT AB, Box 45086 S-104 30 Stockholm S-104 30 Stockholm (SE)