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Three-way-stretch Piston Ring

18th January 1963, Page 43
18th January 1963
Page 43
Page 43, 18th January 1963 — Three-way-stretch Piston Ring
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.1-1 A SIMPLE piston ring, capable of exerting an expansive force upwards, downwards. and outwards, forms the subject of patent No. 899,229. It is claimed to be particularly effective when used as an oil-control ring. (Goetzewerke Friedrich Goetze A.G., 22a Burscheid, bei Cologne, B.Z., Dusseldorf, West Germany.)