(19)

(11)

EP 0 070 883 A1

(12)

(43) Date of publication: 09.02.1983 Bulletin 1983/06 (21) Application number: 82900762.0 (22) Date of filing: 28.01.1982

(51) International Patent Classification (IPC):  G08B 13/ 18( . ) E05F 15/ 00( . ) B66B 13/ 26( . ) G01V 8/ 20( . ) (86) International application number: PCT/US1982/000113 (87) International publication number: WO 1982/002787 (19.08.1982 Gazette 1982/20)

(84) Designated Contracting States: DE FR GB (30) Priority: 10.02.1981 AU 19810007533 (71) Applicant: OTIS ELEVATOR COMPANY Farmington, CT 06032 (US)	(72) Inventor: GRAY, John E. Milperra, N.S.W. (AU) (74) Representative: Boyes, Kenneth Aubrey  Frank B. Dehn & Co. Imperial House 15-19 Kingsway London WC2B 6UZ London WC2B 6UZ (GB)