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The writings of John Greenleaf Whittier, Volume 4. (ed. John Greenleaf Whittier) 15 1 Browse Search
William A. Smith, DD. President of Randolph-Macon College , and Professor of Moral and Intellectual Philosophy., Lectures on the Philosophy and Practice of Slavery as exhibited in the Institution of Domestic Slavery in the United States: withe Duties of Masters to Slaves. 7 3 Browse Search
Archibald H. Grimke, William Lloyd Garrison the Abolitionist 7 5 Browse Search
Wendell Phillips, Theodore C. Pease, Speeches, Lectures and Letters of Wendell Phillips: Volume 2 6 0 Browse Search
Knight's Mechanical Encyclopedia (ed. Knight) 5 1 Browse Search
Thomas Wentworth Higginson, Book and heart: essays on literature and life 5 1 Browse Search
Southern Historical Society Papers, Volume 28. (ed. Reverend J. William Jones) 2 0 Browse Search
Southern Historical Society Papers, Volume 1. (ed. Reverend J. William Jones) 2 2 Browse Search
Frank Preston Stearns, Cambridge Sketches 2 0 Browse Search
The Daily Dispatch: April 4, 1864., [Electronic resource] 2 0 Browse Search
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Browsing named entities in Knight's Mechanical Encyclopedia (ed. Knight). You can also browse the collection for Channing or search for Channing in all documents.

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Knight's Mechanical Encyclopedia (ed. Knight), F. (search)
were stationed, by an ordinary Morse line, so that the watchmen could telegraph to each other the locality of a fire. The present system is that of Farmer and Channing, American patent of May 19, 1857. Mr. Channing first devoted his attention to this subject in 1845, and published several articles that year attempting to shoMr. Channing first devoted his attention to this subject in 1845, and published several articles that year attempting to show its feasibility. In 1848, Mr. M. G. Farmer invented a method of ringing bells by electricity, and in an experimental trial that year the bell in the tower of Boston City Hall was rung by an operator in New York. In 1851, Boston appropriated money to build a fire-alarm telegraph, and early in 1852 the line was completed, put ells and boxes are united in one circuit, so that from a box the general alarm is directly given. These modifications constitute what is known as the Farmer and Channing improved or automatic system, from the fact that no operators at all are necessary, the turning in of an alarm at any station setting in motion all the machinery