Month in the Patent Office: A Selection of the More Important Aircraft and Engine Specifications Published Recently

340,066. Internal — combustion Engines. Junkers, H., 21, Kaiserplatz, Dessau, Anhalt, Germany. Oct. 14, 1929, No. 31156. Convention date, Nov. 20, 1928. [Class 7 (ii)]. In an engine with oppositely moving pistons driving two crank shafts which are geared together, the load is driven off that shaft which receives the heavier power from its associated piston or pistons. This is the piston which has a lead or a greater displacement over the other piston in the same cylinder.