Appleton's Cyclopedia of American Biography, edited by James
Grant Wilson, John Fiske and Stanley L. Klos. Six volumes, New York: D. Appleton
and Company, 1887-1889 and 1999. Virtualology.com warns that these 19th Century
biographies contain errors and bias. We rely on volunteers to edit the historic
biographies on a continual basis. If you would like to edit this biographyplease
submit a rewritten biography in text form.
If acceptable, the new biography will be published above the 19th Century
Appleton's Cyclopedia Biography citing the volunteer editor
Virtual American Biographies
Over 30,000 personalities
with thousands of 19th Century illustrations, signatures, and exceptional life
welcomes editing and additions to the
biographies. To become this site's editor or a contributor
or e-mail Virtualology here.
DAVENPORT, Thomas, inventor, born in Williamstown, Vermont, 9 July 1802; died in Salisbury, Vermont, 6 July 1851. He was apprenticed at the age of fourteen to a blacksmith, and his opportunities for education were limited. In 1833 he began the: study of electro-magnetism, and in 1835 exhibited :a rotary engine driven by electricity, at the Rensselaer institute in Troy, and the Franklin institute in Philadelphia. Late in the year he constructed a smal1 circular railway driven by an electro-magnetic engine. Patents were secured, a company formed, and the manufacture of electro-magnetic engines, as a motive power, begun. But in New York City in 1837, by the dishonesty of its agent, the company became embarrassed and was disbanded. In the prosecution of his experiments he found that a bolt of iron could be drawn with great force into a helix of wire whenever the battery current was suffered to pass through the coil. He immediately constructed a small engine on this principle, which resembled a little steam-engine, the repeated reversal of the magnetic poles producing a movement like that of a piston-rod, instead of the rotary motion hitherto employed. Patents were secured, engines manufactured, and he began the publication of a newspaper, "The ElectroMagnet," which was printed on a press propelled by one of these engines. His experiments were so numerous and costly as to exhaust his resources, and in 1842 he returned with his family to his home in Brandon, Vermont, and thence to Salisbury. In 1846 he turned his attention to the application of the electric current to the strings of musical instruments. As applied by him, the impulsive and evanescent nature of the tone is changed at the will of the player into a full, perfect, and prolonged vibration. The caveats protecting this invention were prepared for filing in the U. S. patent-offic6, when he was stricken by a fatal illness.
This site and its contents are not affiliated, connected,
associated with or authorized by the individual, family,
friends, or trademarked entities utilizing any part or
the subject's entire name. Any official or affiliated
sites that are related to this subject will be hyper
linked below upon submission
and Evisum, Inc. review.
Please join us in our mission to incorporate America's Four United Republics discovery-based curriculum into the classroom of every primary and secondary school in the United States of America by July 2, 2026, the nation’s 250th birthday. , the United States of America: We The
People. Click Here