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Henry Voigt
Henry Voigt or Henry Voight (1738–1814) was a clockmaker, mathematical instrument maker, machine and steam engine builder, and Chief Coiner of the first United States Mint. He operated a wire mill in Reading Pennsylvania and repaired clocks and watches for Thomas Jefferson, who knew him well.〔''(Voyages of discovery ): Essays on the Lewis and Clark Expedition''. James P. Ronda. Montana Historical Society, 1998. p.164〕 In Philadelphia he participated in the development and production of the first practical steamboat with John Fitch that in 1790 that traveled in a commercial operation between 1,300 and 3,000 miles at speeds estimated from 6 to 8 miles per hour.〔''Steamboats Come True: American Inventors in Action''. James Thomas Flexner. Fordham University Press, 1944, 1992. p.187〕 He is credited with some of the first U.S. coin designs and participated in the 1770 production (as one of the "hands" or helpers) and 1806 repair and extension of David Rittenhouse's Orrery.〔''(The Rittenhouse orrery ): Princeton's Eighteenth-century Planetarium'', 1767-1954. A commentary on an exhibition held in the Princeton University Library. Howard Crosby Rice. Princeton University Library, 1954〕
==Watchmaking business==
By 1775 Voigt had a watchmaking business in Philadelphia. He also claimed to have made himself useful during the American Revolutionary War with some of his manufacturing machines.〔''Steamboats Come True''. Flexner〕
Fitch became acquainted with Voigt the watchmaker and was impressed by his ingenuity. Following several conversations in which Voigt took an interest in the scheme, he had made such sensible suggestions that Fitch offered Voigt a share in the Company if he would help him, which Voigt agreed to do. Some years later Fitch recorded a description of Voigt as follows:
"Mr Voight is a Plain Dutchman who fears no man and will always speak his sentiments which has given offense to some of the Members of our Co., and some of them have effected to have a contemptible an opinion of his Philosophic abilities. It is true he is not a man of Letters nor mathematical Knowledge but for my own part I would depend on him more than a Franklin, a () Rittenhouse, an Ellicot, a () Nancarrow, and Matlack (Matlock ), all combined, as he is a man of superior Mechanical abilities, and Very considerable Natural Philosophy; and as we have many of the first Geniuses in our Co., perhaps nearly equal to those I have mentioned, it is Certain that he has pointed out more defects than them all, and pointed out ways to remedy those defects, when consternation sat silent in every breast for the disaster."〔''(Life of John Fitch ): the Inventor of the Steam-boat''. Thompson Westcott. J.B. Lippincott & Co., 1857. p.157〕
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