(19)

(11)

EP 0 044 337 A1

(12)

(43) Date of publication: 27.01.1982 Bulletin 1982/04 (21) Application number: 81900473.0 (22) Date of filing: 21.01.1981

(51) International Patent Classification (IPC):  B04B 7/ 04( . ) B04B 9/ 12( . ) B04B 9/ 08( . ) (86) International application number: PCT/US1981/000072 (87) International publication number: WO 1981/002114 (06.08.1981 Gazette 1981/19)

(84) Designated Contracting States: DE FR GB NL SE (30) Priority: 21.01.1980 US 19800113745 21.01.1980 US 19800113980 (60) Divisional application: 85109943.2 / 0167180 (71) Applicant: THE WESTERN STATES MACHINE COMPANY Hamilton, OH 45012 (US)	(72) Inventors: BANGE, Joseph Bernard Hamilton, OH 45013 (US) HURLEY, Donald Lee Hamilton, OH 45013 (US) (74) Representative: Dr. Elisabeth Jung Dr. Jürgen Schirdewahn Dipl.-Ing. Claus Gernhardt  Postfach 40 14 68 D-80714 München D-80714 München (DE)