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George P. Rowell and Company's American Newspaper Directory, containing accurate lists of all the newspapers and periodicals published in the United States and territories, and the dominion of Canada, and British Colonies of North America., together with a description of the towns and cities in which they are published. (ed. George P. Rowell and company) 28 0 Browse Search
Harper's Encyclopedia of United States History (ed. Benson Lossing) 27 13 Browse Search
Rebellion Record: a Diary of American Events: Documents and Narratives, Volume 3. (ed. Frank Moore) 22 0 Browse Search
Southern Historical Society Papers, Volume 35. (ed. Reverend J. William Jones) 10 0 Browse Search
Frederick H. Dyer, Compendium of the War of the Rebellion: Regimental Histories 6 4 Browse Search
The Daily Dispatch: December 25, 1861., [Electronic resource] 6 0 Browse Search
Benson J. Lossing, Pictorial Field Book of the Civil War. Volume 2. 4 0 Browse Search
Knight's Mechanical Encyclopedia (ed. Knight) 4 0 Browse Search
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 2 0 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. 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 Easton, Pa. (Pennsylvania, United States) or search for Easton, Pa. (Pennsylvania, United States) in all documents.

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Knight's Mechanical Encyclopedia (ed. Knight), G. (search)
e two ordinary rails of a railway track, and employed in connection with devices on the engine, carriages, or both, in preventing the rolling-stock from running off the track. The center-rail gripped by horizontally rotating wheels acts as a guide-rail. Blenkinsop's rack-rail (English patent, 1811) was used as a means of progression in connection with a spur-wheel on the engine, and not as a guide. Following him was Snowden's middle-rack and mechanical horse. See center-rail. Easton's center rail (English patent, 1825) fulfilled two purposes; its upper edge formed a rack and served, in connection with a spur-wheel on the locomotive, as a means of progression; its sides formed a guide-rail in connection with pairs of horizontally rotating rollers underneath the carriages of the train. Kollman's English patent of 1836 has a similar guide-rail. Prosser's guide-wheels (English patent, 1844) are set an angle of 45° beneath the truck, and have sunken rectangular faces w
Knight's Mechanical Encyclopedia (ed. Knight), R. (search)
self had rails traversed by a carriage, which the inventor termed the mechanical horse. On the horse was a vertical shaft with a horizontal cog-wheel at its lower end gearing into the rack, and a bevel-wheel above engaged by a similar wheel on the front of the locomotive, and driven by the engine. As the wheel on the locomotive rotated, the upright shaft conveyed motion to the cog-wheel beneath, and this acting on the rack drew along the mechanical horse and the train connected thereto. Easton's English patent, 1825, specifies a central rack, placed between the two rails, and a toothed wheel on the locomotive. Guide-rollers bear laterally against the smooth sides of the central bar, in order to keep the carriages from swerving from the track. The rack-rail is now only to be found in some forms of inclined-plane railways. See also center-rail. Rack-saw. A saw with wide teeth. Rack-tail. （Horology.) A bent arm connected with the toothed segment-rack, by which the