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Document Max. Freq Min. Freq
Harper's Encyclopedia of United States History (ed. Benson Lossing) 42 4 Browse Search
Frederick H. Dyer, Compendium of the War of the Rebellion: Regimental Histories 24 4 Browse Search
Oliver Otis Howard, Autobiography of Oliver Otis Howard, major general , United States army : volume 1 10 0 Browse Search
Brig.-Gen. Bradley T. Johnson, Confederate Military History, a library of Confederate States Military History: Volume 2.1, Maryland (ed. Clement Anselm Evans) 6 0 Browse Search
A. J. Bennett, private , First Massachusetts Light Battery, The story of the First Massachusetts Light Battery , attached to the Sixth Army Corps : glance at events in the armies of the Potomac and Shenandoah, from the summer of 1861 to the autumn of 1864. 4 0 Browse Search
Thomas Wentworth Higginson, Massachusetts in the Army and Navy during the war of 1861-1865, vol. 1, Condensed history of regiments. 4 2 Browse Search
Rebellion Record: a Diary of American Events: Documents and Narratives, Volume 3. (ed. Frank Moore) 4 0 Browse Search
William Schouler, A history of Massachusetts in the Civil War: Volume 1 4 0 Browse Search
H. Wager Halleck , A. M. , Lieut. of Engineers, U. S. Army ., Elements of Military Art and Science; or, Course of Instruction in Strategy, Fortification, Tactis of Battles &c., Embracing the Duties of Staff, Infantry, Cavalry, Artillery and Engineers. Adapted to the Use of Volunteers and Militia. 4 0 Browse Search
Benson J. Lossing, Pictorial Field Book of the Civil War. Volume 1. 4 0 Browse Search
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Browsing named entities in Knight's Mechanical Encyclopedia (ed. Knight). You can also browse the collection for Bladensburg (Maryland, United States) or search for Bladensburg (Maryland, United States) in all documents.

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Knight's Mechanical Encyclopedia (ed. Knight), E. (search)
armatures of which are connected by a bar moving upon centers, the bar is connected with the beam, which, by means of a crank, moves the fly-wheel; by means of a breakpiece upon the axle of the fly-wheel, the current is alternately passed through the two magnets. A double-beam engine of similar construction, operated by two pairs of electro-magnets, has also been made. About 1849, Professor Page propelled a car on the track of the Baltimore and Washington Railroad from Washington to Bladensburg, a distance of six miles, and back, by means of an engine of his invention, attaining a speed of nineteen miles an hour. Various forms of electro-magnetic engines have also been invented by Wheatstone, Talbot, Hearder, Hjorth, and others. Professor Jacobi of St. Petersburg, in 1838-39, succeeded in propelling a boat upon the Neva at the rate of four miles an hour, by means of a machine on this principle. The boat was 28 feet long, about 7 feet wide, drew about 3 feet water. The bat