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The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 5: Forts and Artillery. (ed. Francis Trevelyan Miller) 17 1 Browse Search
Harper's Encyclopedia of United States History (ed. Benson Lossing) 14 0 Browse Search
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Browsing named entities in The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 5: Forts and Artillery. (ed. Francis Trevelyan Miller). You can also browse the collection for Thomas Jefferson Rodman or search for Thomas Jefferson Rodman in all documents.

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The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 5: Forts and Artillery. (ed. Francis Trevelyan Miller), Defending the national capital (search)
bove high water. It was armed with five 200-pounder Parrott guns and a 15-inch Rodman smooth-bore, emplaced in pairs. The parapet was twenty-five feet thick. The 15-inch Rodman gun visible above the bomb-proofs, can be studied below closer at hand. This monster of its time became possible through the discoveries made by CaptaiCaptain Rodman, of the United States Ordnance Department. It is mounted on a center-pintle carriage — that is, the tracks carrying the carriage are completely circular, anun All quiet along the Potomac, May 18, 1864: an intimate view of the great Rodman gun shown on the page preceding All quiet along the Potomac, May 18, 1864. An intimate view of the great Rodman gun shown on the page preceding The 15-inch Rodman gun in Battery Rodgers, near Alexandria, with a gun-detachment Rodman gun in Battery Rodgers, near Alexandria, with a gun-detachment around it. The scene was quiet the day this photograph was taken. The gunners little thought that within a few weeks the city would be in a turmoil of excitement fro
The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 5: Forts and Artillery. (ed. Francis Trevelyan Miller), The Ordnance department of the Federal army (search)
ad was heralded in Harper's Weekly as the biggest gun in the world, but three years later this was exceeded. In 1844 Lieutenant (later Brigadier-General) Thomas Jefferson Rodman of the Ordnance Department commenced a series of tests to find a way to obviate the injurious strains set up in the metal, by cooling a large casting fromwater or cold air through it. So successful was this method that the War Department, in 1860, authorized a 15-inch smoothbore gun. It proved a great success. General Rodman then projected his 20-inch smooth-bore gun, which was made in 1864 under his direction at Fort Pitt, Pittsburg, Pennsylvania. It was mounted at Fort Hamiltonoast defense, published by Mr. D. Van Nostrand, of the city. this gun was cast at Pittsbugh, Pennsylvania, by Knap, Rudd and Co., under the direction of Captain T. J. Rodman, of the Ordnance Corps. Its dimensions are as follows: total length190 inches. length of calibre of bore156 inches. length of ellipsoidal chamber9 in