Developing An Unusual Two Strokecycle Engine

I N our issue of April 8th, 1930, we described the general working principles of the Rodger engine, operating on the two-stroke cycle, Before going farther it will be well to......

A New Piston-type Hydraulic Damper

I N a new type of hydraulic recoil damper introduced by Armstrong's Patents Co., Ltd. Beverley, East Yorkshire, one of die two pivoted arms is enlarged and takes the form of a......