The Civil engineer and architect's journal, scientific and railway gazette . nd, screw-threaded on the out-side, and perforated with numerous air-holes. On the front end of each bar there is a broad flange or shoulder f^ which projects beyond the general line of the furnace, and has a worm-wheel W, formed upon it. An endless screw-shaft K, which passes across the front of the furnace, and is worked from the engine through the medium of the bevil-wheels N, O, takes into the whole series of worm-wheels AV, and causes thereby the constant rotation of the fire-bars. L is a throttle-^•alve hopper b
The Civil engineer and architect's journal, scientific and railway gazette . nd, screw-threaded on the out-side, and perforated with numerous air-holes. On the front end of each bar there is a broad flange or shoulder f^ which projects beyond the general line of the furnace, and has a worm-wheel W, formed upon it. An endless screw-shaft K, which passes across the front of the furnace, and is worked from the engine through the medium of the bevil-wheels N, O, takes into the whole series of worm-wheels AV, and causes thereby the constant rotation of the fire-bars. L is a throttle-^•alve hopper by which the coals are sup-plied to the furnace. As the coals drop from the hopper they fall upon an inclined shoot M, which projects them upon the front end of the furnace bars, whence they are carried gradually forward to the back, by tlie rotation of the bars and the action of their screwed surfaces on the mass of fuel. In consequence of the bars being in this constant state of rotation it is almost impossible that either clinkers or ashes should accumulAte upon LOCOMOTIVE ENGINES. Charles Ritchie, of Aberdeen, Scotland, engineer, for certainImprovements in locomotive enyines.—Granted March 2; EnrolledSeptember 2, 1848. [Reported in the Mining Journal.] This invention consists in, and has reference to, certain im-provements in locomotive and other engines, carried into practicaleflfect by the means, or through the agency, of certain new orimproved mechanical combinations and arrangements, having fortheir object the simplification of the construction, and the augmen-tation of the efficiency, of such engines. The first part consists in the application of a cylinder, orcylinders, with two distinct and separate pistons in each cylinder,to which are affixed piston-rods, for imparting motion to thecranked-axles and driving-wheels fixed thereon, whereby the rock-ing, or oscillating, motion attending locomotive engines as hithertoconstructed, is considerably diminished, an
Size: 1530px × 1633px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1800, booksubjectarchitecture, booksubjectscience
