Cars of the i^66 > s 49 



spring steel will take three million vibrations on a testing 

 machine. Beryllium-copper can take at least one billion. 



The delicate new aviation instruments have beryllium- 

 copper in them to assure permanent accuracy under all sorts 

 of stress and strain. Engineers have begun to use this alloy in 

 the electrical equipment, valves, and gears of engines, and in 

 radios, electric motors, and other high-speed machines. Your 

 vacuum cleaner and refrigerator give you longer service 

 because of beryllium-copper. 



Another alloy beryllium-nickel is stronger than beryl- 

 lium-copper and has a bright future. If beryllium and alumi- 

 num can be combined, the automobile and aviation industries 

 may have the perfect alloy for engine pistons. And when the 

 problem of combining beryllium and magnesium is solved, 

 engineers will have an excellent alloy for structural purposes. 



As beryllium-production processes are simplified, and the 

 price is lowered, this metal will be used more widely in the 

 building of a better postwar auto engine. 



Renaissance of the Diesels 



Recent improvements in Diesel engines indicate that the 

 present gasoline motor may someday have to look to its lau- 

 rels. The Navy is using a new "pancake"-type Diesel engine 

 which gives lighter ships increased speed and range. 



Dr. Rudolph Diesel, a German engineer, patented his en- 

 gine in 1892 and first operated it successfully in 1897. The 

 power explosion in the Diesel cylinder is caused by compres- 

 sion instead of by a spark as in a gasoline engine. 



Thus the Diesel has no ignition system nor spark plugs. 

 Neither does it have a carburetor, which is used in the gaso- 

 line engine to mix air and gasoline and admit them to the cyl- 

 inder. In place of the ignition system and carburetor there are 

 injectors, which are usually placed about where the spark 



