Popular Mechanics, Volume 38

Adjustable airplane attached Auto Automatic automobile bakelite belt binding posts block boat bolt bottom bridge building built carburetor City clamp coil concrete connected construction crete cylinder device diameter disk drawing drilled driving easily Easter Island edge Electric engine equipped fastened feet film fire flange frame front gasoline gear ground handle heat holder hole horsepower inches iron knurled lamp lathe lever light machine ment metal method miles motor mounted operation outfit Phonograph photograph piece pipe pipe wrench placed plant plate Popular Mechanics potlatch prevent pulley pump radio Railroad reamer rear recently removed rheostat River rubber screw selenium shaft ship Showing shown side slide slot Socket Wrench speed spring steel surface tank tion tire tool tool bit Tractor Truck tube turned valve weight wheel wire Wireless wood wooden