Identifier: americanaunivers15beac (find matches)
Title: The Americana : a universal reference library, comprising the arts and sciences, literature, history, biograhy, geography, commerce, etc., of the world
Year: 1903 (1900s)
Authors: Beach, Frederick Converse, 1848-1918 Rines, George Edwin, 1860- Scientific American, inc
Subjects: Encyclopedias and dictionaries
Publisher: New York : Scientific American compiling dept.
Contributing Library: University of California Libraries
Digitizing Sponsor: Internet Archive

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constructed by Julius Griffiths, of Middlesex, England, in 1821. Between 1833 and 1840 the problem was taken up in the United States, and resulted in the building of a successful steam-carriage by J. K. Fisher, in the last-named year; while abroad, from 1840 to 1875, several firms had succeeded in developing a business of considerable extent in the construction of road locomotives for hauling heavy loads, and in building steam road rollers. A general idea of the machines built about this time may be obtained from the following description of a road locomotive built by Messrs. Aveling and Porter, of London: Weight of engine complete, 5 tons, 4 cwt. (11,648 pounds); diameter of steam cylinder, 7 3/4 inches; stroke of piston, 10 inches; revolution of crank to one of the driving wheels, 17; diameter of driving wheels, 60 inches; breadth of tire, 10 inches; weight of tires, 450 pounds each; length of boiler shell, 30 inches; thickness of shell, 7-16 of an inch; thickness of fire-box TRACTION ENGINES.
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1. A 110 horse power Traction Engine hauling lumber in the Sierra Nevada Mountains. 2. Traction engine hauling war material for the Nicarauguan government. TRACTS FOR THE TIMES sheets outside, 1/2 inch; load on driving wheels, 4 tons, 10 cwt., or I0,080 pounds. The boiler was mounted upon it, in a manner similar to that of any other portable engine. The driving pinion on the crank-shaft was made so that it could be slipped out of gear, and thus allow the engine to be kept running when the locomotive was at rest. This enabled it to be used to pump water into the boiler, or to drive as a "portable engine," by operating a belt on a pulley, 4 1/2 feet in diameter and 5 inches face, which was fitted to act as a fly-wheel. When in use as a portable engine it was regulated by means of a fly ball governor conveniently attached. The engine valve gear consisted of the standard arrangement of three-ported valve and Stephenson link with reversing lever so generally used on locomotives, while the fe

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