(19)

(11)

EP 0 091 929 A1

(12)

(43) Date of publication: 26.10.1983 Bulletin 1983/43 (21) Application number: 82903174.0 (22) Date of filing: 25.10.1982

(51) International Patent Classification (IPC):  A24B 3/ 04( . ) F26B 3/ 092( . ) F26B 17/ 26( . ) F26B 25/ 22( . ) F26B 3/ 08( . ) F26B 17/ 04( . ) F26B 21/ 10( . ) (86) International application number: PCT/GB1982/000302 (87) International publication number: WO 1983/001560 (11.05.1983 Gazette 1983/11)

(84) Designated Contracting States: AT BE CH DE FR LI LU NL SE (30) Priority: 27.10.1981 GB 19810032310 (71) Applicant: Hambro Machinery Limited Netherfield Nottingham.NG4 2PF (GB)	(72) Inventors: BROOKS, Derrick William Nottinghamshire (GB) MORRIS, Christopher Philip Nottingham NG4 1DH (GB) (74) Representative: Coxon, Philip, et al  Eric Potter & Clarkson St. Mary's Court St. Mary's Gate Nottingham NG1 1LE Nottingham NG1 1LE (GB)