25th September 1928, Page 32
25th September 1928
Page 32

Page 32, 25th September 1928
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Constant Compression At All Throttle ,positions.
A Résumé of Recently Published Patent Specifications. A N interesting invention is described in specification No. 276,332, by Marcel A. Violet, of Courbeveie, France. The......
Gas-tight Piston Rings.
A FORM of piston ring is shown in specification No. 2'71,109 (Eugen Mandell, an Italian, resident in Austria), in which three rings are situated in each groove. The main idea so......