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The detergent quality of the crankcase oil of an I.C. Engine is evaluated by studying the deposits on the piston surface after a test run. The usual method of recording the appearance, texture and location of these deposits is by photography. However, photographing a mere elevation of the piston...
A PAPER to the Institution of Mechanical Engineers by Dr. A. A. Parry and Dr. L. A. Mitchell of the Central Electricity Generating Board Paper P2068 giving details of the authors' research on solid lubricants for use within gascooled power reactors is published with the intention of inviting...
KOHLER of Wisconsin, U.S.A., has doubled the number of models in its engine line from eight to sixteen. The five new cast iron vertical shaft engines are in the lower horsepower range4, 5, 6, 7 and 8. The three new horizontal shaft engines 4, 5 and 14 h.p., are fourcycle, aircooled, cast iron...
IF a twist drill could be kept perfectly cool and its cutting edge lubricated, at all speeds, there would be almost no limit to the speed or the depth it could cut and drill. Improvements in cutting oils and coolants have gone a long way, and the present cutting speeds of modern automatics would...
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