(19)

(11)

EP 0 075 557 A1

(12)

(43) Date of publication: 06.04.1983 Bulletin 1983/14 (21) Application number: 81903104.0 (22) Date of filing: 16.11.1981

(51) International Patent Classification (IPC):  F23G 5/ 14( . ) F24H 3/ 06( . ) F24B 1/ 02( . ) F24H 6/ 00( . ) (86) International application number: PCT/GB1981/000244 (87) International publication number: WO 1982/003443 (14.10.1982 Gazette 1982/25)

(84) Designated Contracting States: AT CH DE FR GB LI LU NL SE (30) Priority: 02.04.1981 GB 19810010447 (71) Applicant: PARKIN, Geoffrey Leeds 15 Yorkshire (GB)	(72) Inventor: PARKIN, Geoffrey Leeds 15 Yorkshire (GB)