Heat as a Source of Power; With Applications of General Principles to the Construction of Steam Generators. An Introduction to the Study of Heat-Engines
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The Profession of the Mechanical or Dynamical Engineer: An Inaugural Address Before the Sheffield Scientific School of Yale College, Delivered October 5, 1870 (Classic Reprint)
(Excerpt from The Profession of the Mechanical or Dynamica...)
Excerpt from The Profession of the Mechanical or Dynamical Engineer: An Inaugural Address Before the Sheffield Scientific School of Yale College, Delivered October 5, 1870
To those who are interested in knowing the particulars of a scheme of study laid down in accordance with the principles of this address, a special circular will be sent on application.
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William Petit Trowbridge was a mechanical engineer, military officer, and naturalist.
Background
William Petit Trowbridge was born on May 25, 1828 in Troy, N. Y. He was a descendant of Thomas Trowbridge who settled in New Haven, Connecticut, early in the seventeenth century, and the son of Stephen Van Rensselaer and Elizabeth (Conkling) Trowbridge.
Education
His early education was obtained in rural schools, but at the age of sixteen years he was able to fulfil the requirements for entrance to the United States Military Academy, where he stood at the head of his class throughout the four-year course. He graduated in 1848.
Career
After graduation, he was made brevet second lieutenant of engineers. During the last year of his course, he had acted as assistant professor of chemistry, and after his graduation he spent two years in the astronomical observatory, preparing himself for service in the United States Coast Survey; he was commissioned second lieutenant on November 30, 1849.
His first assignment was on the Atlantic coast, where he was engaged in the execution of the primary triangulation of the coast of Maine; subsequently, he was engaged in surveys of the Appomattox and James rivers in Virginia.
Proceeding to the Pacific coast in 1853, he was occupied during the succeeding three years in conducting astronomical, tidal, and magnetic observations along the coast from San Diego to Puget Sound.
He was promoted to a first lieutenancy in the corps of engineers on December 18, 1854; but, upon returning from the West in 1856, he resigned from the army to accept a professorship of mathematics in the University of Michigan. In the course of a year, however, he was persuaded to accept a permanent appointment as assistant superintendent of the Coast Survey. The Reports of the Superintendent of the Coast Survey, Showing the Progress of the Survey During the Years 1857-1861 (1858 - 62) reveal the nature of Trowbridge's employments at this period. They cite observations on the winds of the Pacific coast; arrangement of Gulf Stream observations; investigation of the laws of motion governing the descent of the weight and line in deep-sea soundings; a review of the origin, cost, and progress of foreign geodetic surveys; description of an apparatus devised by Trowbridge for determining ocean depths and obtaining specimens of the bottom; results of experiments made with an instrument, also devised by Trowbridge, to register depths in soundings, and distance as a log at sea.
In 1860 he was selected to install the self-registering instruments of the permanent magnetic observatory established at Key West for the purpose of recording the variations in the direction of the magnetic needle, and also the intensity of the earth's magnetic force in terms of the fundamental units of space, mass, and time. The following year preparations for warfare became of concern to his office, and, by recourse to the official records, he produced detailed descriptions of the harbors, inlets, and rivers of the coasts of the Southern states for the use of the navy; this task finished, he proceeded to execute a hydrographic survey of Narragansett Bay in relation to the project to establish a navy yard there.
Soon after the beginning of the Civil War, he was placed in charge of the army engineer agency at New York City for supplying materials for fortifications, and for constructing engineering equipage for armies in the field; at the same time he was superintending engineer of the construction of the fort at Willets Point, of the repairs to Fort Schuyler, and of the works on Governors Island.
In 1865 he accepted the vice-presidency of the Novelty Iron Works, New York City, which position he held until 1871, when he became professor of dynamic engineering in the Sheffield Scientific School at Yale; from 1877 to the close of his life he was professor of engineering in the School of Mines of Columbia College.
He lent impetus to the advancement of engineering education and to the application of science in place of empiricism in engineering. While at Yale, he served as a member of the New Haven board of harbor commissioners, as a commissioner for the building of the capitol at Hartford, and as adjutant-general of Connecticut; while at Columbia, he was a member of the commission to examine and report upon the construction of the capitol at Albany.
He was the author of designs for a cantilever bridge across the East River at Blackwell's Island, N. Y. , and of treatises entitled Heat as a Source of Power . An Introduction to the Study of Heat Engines (1874), and Turbine Wheels (1879), besides important contributions on various subjects to the Transactions of the New York Academy of Sciences.
From 1878 to 1884 he was councilor of the New York Academy of Sciences, and from 1885 to 1889, a vice-president.
He died in New Haven, Connecticut.
Achievements
William Petit Trowbridge was one of the first mechanical engineers on the faculties of the University of Michigan, the Sheffield Scientific School of Yale, and the Columbia School of Mines. During his career as a surveyor on the American Pacific coast he collected thousands of animal specimens, several of which now bear his name.
(Lang:- eng, Pages 125. Reprinted in 2015 with the help of...)
Membership
He was prominent in the American Association for the Advancement of Science, and a member of the National Academy of Sciences.
Trowbridge inducted into the National Academy of Sciences in 1872 and was also a member of the New York Academy of Sciences.
Connections
Trowbridge married Miss Lucy Parkman in Savannah, Georgia on April 21, 1857 and together they had five sons and three daughters; Catherine Helsey (1858), Lucy Parkman (1859), William Petit (1861), Samuel Breck Parkman (1862), Nannie Bernie (1864), Percival Elliot (1867), Julian Percival (1869) and Charles Christopher (1870). Samuel went on to become an architect in the New York-based practice of Trowbridge & Livingston. Trowbridge died on August 12, 1892 in New Haven, Connecticut.