Science for beginners . rtance of the Gas Engine.—For many yearsthese engines were not of great importance. They were thenused only where small amounts of power were needed occa-sionally and in places where other power was not easilyobtainable. In recent years, however, engines burning gaso-line, crude petroleum, and gas produced from coal, as a wasteproduct from blast furnaces, have become of great importance. 607. The Gasoline Engine and the Automobile.—Manyattempts have been made during the past two centuries toproduce self-propelled vehicles adapted to use on publicstreets and country road
Science for beginners . rtance of the Gas Engine.—For many yearsthese engines were not of great importance. They were thenused only where small amounts of power were needed occa-sionally and in places where other power was not easilyobtainable. In recent years, however, engines burning gaso-line, crude petroleum, and gas produced from coal, as a wasteproduct from blast furnaces, have become of great importance. 607. The Gasoline Engine and the Automobile.—Manyattempts have been made during the past two centuries toproduce self-propelled vehicles adapted to use on publicstreets and country roads (Fig. 311). Until the gasolineengine was perfected little progress was made in this direc-tion. The ordinary steam engine was found to be too heavyand cumbersome to be easily adapted to this use. The mod-ern gasoline engine for use in automobiles weighs but about SOME COMMON MECHANICAL MOTORS 500 10 or 15 lbs. to the horse-power; moreover, it is ready for useat all times and can be started at a moments notice. The. Fig. 311.—Cugnots steam carriage, 1769. (From Stories of Useful In-ventions. By Courtesy of the Century Company.)
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectscience, bookyear1921
