(19)

(11)

EP 0 232 271 A1

(12)

(43) Date of publication: 19.08.1987 Bulletin 1987/34 (21) Application number: 85905452.0 (22) Date of filing: 29.10.1985

(51) International Patent Classification (IPC):  B23D 47/ 00( . ) B23D 59/ 00( . ) B23D 61/ 00( . ) B27B 33/ 20( . ) B23D 55/ 00( . ) B23D 59/ 02( . ) B23D 61/ 02( . ) (86) International application number: PCT/SE1985/000425 (87) International publication number: WO 1986/002590 (09.05.1986 Gazette 1986/10)

(84) Designated Contracting States: AT DE FR IT SE (30) Priority: 29.10.1984 SE 19840005405 (71) Applicant: AB VIGILANTIA S-117 32 Stockholm (SE)	(72) Inventors: ASK, Waldemar S-183 50 Täby (SE) SIVERS, Carl S-117 32 Stockholm (SE) (74) Representative: Delhage, Einar, et al  Bergenstrahle & Lindvall AB Sankt Paulsgatan 1 S-116 47 Stockholm S-116 47 Stockholm (SE)