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William F. Fox, Lt. Col. U. S. V., Regimental Losses in the American Civil War, 1861-1865: A Treatise on the extent and nature of the mortuary losses in the Union regiments, with full and exhaustive statistics compiled from the official records on file in the state military bureaus and at Washington 18 0 Browse Search
Emilio, Luis F., History of the Fifty-Fourth Regiment of Massachusetts Volunteer Infantry , 1863-1865 14 14 Browse Search
Rebellion Record: a Diary of American Events: Documents and Narratives, Volume 8. (ed. Frank Moore) 14 0 Browse Search
George Bancroft, History of the United States from the Discovery of the American Continent, Vol. 10 14 0 Browse Search
William Tecumseh Sherman, Memoirs of General William T. Sherman . 14 0 Browse Search
Benson J. Lossing, Pictorial Field Book of the Civil War. Volume 3. 13 1 Browse Search
Rebellion Record: a Diary of American Events: Documents and Narratives, Volume 6. (ed. Frank Moore) 13 1 Browse Search
Horace Greeley, The American Conflict: A History of the Great Rebellion in the United States of America, 1860-65: its Causes, Incidents, and Results: Intended to exhibit especially its moral and political phases with the drift and progress of American opinion respecting human slavery from 1776 to the close of the War for the Union. Volume I. 13 5 Browse Search
The Daily Dispatch: April 5, 1861., [Electronic resource] 12 0 Browse Search
Cambridge History of American Literature: volume 1, Colonial and Revolutionary Literature: Early National Literature: Part I (ed. Trent, William Peterfield, 1862-1939., Erskine, John, 1879-1951., Sherman, Stuart Pratt, 1881-1926., Van Doren, Carl, 1885-1950.) 12 0 Browse Search
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Browsing named entities in Knight's Mechanical Encyclopedia (ed. Knight). You can also browse the collection for Pittsburgh (Pennsylvania, United States) or search for Pittsburgh (Pennsylvania, United States) in all documents.

Your search returned 23 results in 13 document sections:

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Knight's Mechanical Encyclopedia (ed. Knight), T. (search)
es16 3/4 × 12 1/410077CD Cross doubles16 3/4 × 12 1/4100126XD Two-cross doubles16 3/4 × 12 1/4100147XXD Three-cross doubles16 3/4 × 12 1/4100168XXXD Four-cross doubles16 3/4 × 12 1/4100189XXXXD Common small doubles15 × 11200168CSD Cross small doubles15 × 11200189XSD Two-cross doubles15 × 11200210XXSD Three-cross doubles15 × 11200231XXXSD Four-cross doubles15 × 11200252XXXXSD Wasters, common, No. 113 3/4 × 10225112WCI Wasters, cross, No. 113 3/4 × 10225140WXI The process in Pittsburg is as follows:— The sheets, cut into the desired sizes, are pickled by immersion in a bath of dilute sulphuric acid for 10 to 20 minutes. They are then annealed for from 6 to 7 hours; then rolled cold, to give them a surface polish. This operation hardens the iron, so that the plates are again annealed, with greater care and at a lower temperature, for 6 or 7 hours. The plates are then again pickled in an acid bath for some 10 minutes, to remove the scale of oxide, washed in wat
Knight's Mechanical Encyclopedia (ed. Knight), U. (search)
s of a blast of steam or air for the production of a partial vacuum for various purposes. See vacuum-pan for one of the earliest uses of the idea in evaporating solutions. Vac′u-um-brake. （Railway.) A form of steamoperated car-brake, in which the general construction of the brake is analogous to that of the Westinghouse. The power employed is the pressure of the atmosphere produced by creating a vacuum instead of that due to compressed air. It is the invention of J. Y. Smith of Pittsburgh. Vac′u-um–cyl′in-der cock. （Steam-engine.) A valve in a steam-cylinder to allow air to enter behind the piston when a partial vacuum has occurred in the cylinder. Vac′u-um–fil′ter. One in which the operation is expedited by exhausting the air beneath the filtering-machine. Vac′u-um–gage. （Steam-engine.) An instrument for indicating difference between the external atmospheric pressure and the pressure inside a partially exhausted vessel; such as A s
Knight's Mechanical Encyclopedia (ed. Knight), W. (search)
e end of the last century, the practice of boring was not uncommon in England, and a number of artesian wells were obtained, one especially in London, which was dug and bored 260 feet. Gas from bored wells is now used extensively in and near Pittsburgh, in heating furnaces. See also gas, page 244. The Burns gas-well, on the Duffy farm, 35 miles from Pittsburgh, emits 1,000,000 cubic feet of gas per hour, weighing 58 1/4 tons. The gas is C 4 8 6 or 80 per cent of carbon and 20 of hydrogenPittsburgh, emits 1,000,000 cubic feet of gas per hour, weighing 58 1/4 tons. The gas is C 4 8 6 or 80 per cent of carbon and 20 of hydrogen. The pressure of gas is 200 pounds to the square inch. The delivery of gas is 1,408 tons per day, or 1,126 tons carbon, 282 tons hydrogen, equal to 1,250 tons anthracite coal, or the charcoal made from 5,000 cords of wood; estimated to be equal to the wood obtained by clearing 125 acres of forest, sufficient in smelting iron ores to make 700 tons of pig-iron daily. See Galaxy, January, 1876. One of the deepest, it not the very deepest, bore-hole which was ever sunk, is 24 miles south of
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