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Knight's Mechanical Encyclopedia (ed. Knight), E. (search)
nclination, notwithstanding the inequalities in the surface of the ground. This is shown in the upper illustrations of Fig. 1856. The boxes H are in pairs, suspended on each side of the carriage, which travels upon a pair of grooved wheels D. The track K is supported on the pillars. The wheels are placed one before the other, and the axles are extended laterally so as to support the boxes by the suspension-rods I. The center of gravity of the loaded boxes is below the level of the rail. Barnum's elevated Railway. The carriages are hooked together, and are drawn by horses and a towing-rope. A railway on this principle was constructed in 1825 at Cheshunt, in England, and used for conveying bricks across the marshes to the river Lea, where they were shipped. Fisher's English patent, 1825, in the same figure, shows a suspended carriage between two lines of rail. In the figure, the bar a with rail-flanges b b is shown suspended by rods from a catenary chain, which is suppo
Knight's Mechanical Encyclopedia (ed. Knight), O. (search)
r chamber and the lid closed tightly. The solution from vat B is allowed to flow into A, and the faucet D is then closed. Steam is then admitted from the pipe entering the bottom of the closed vessel A, and, collecting in the top of the vessel, forces the liquid into the chamber in which the cask J is placed. When the cask is saturated, the steam is shut off and allowed to flow by faucet D into chamber B; the liquid sinks from the upper chamber, the lid is lifted, and the cask removed. Barnum and McNoah's metallic barrel (Fig. 3395) is coated on both sides with lead, and the joints made by riveting and soldering. There are many patents for compositions, modes, and machinery for thus impregnating, and for coating barrels for this purpose. Oil-test. For ascertaining the degree of heat at which the hydrocarbon vapors of petroleum are liable to explode. That legally employed in Great Britain consists in heating the oil in a porcelain vessel surrounded by a hot-water bath.
Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
9, 1865. 91,285SulgroveJune 15, 1869. 114,254BarnumMay 2, 1871. 115,048Fowler et al.May 23, 1871.. 10, 1857. 31,185MunsonJan. 22, 1861. 31,366BarnumFeb. 12, 1861. 38,705WagenerMay 26, 1863. 40,42,877RobjohnMay 24, 1864. (Reissue.)1,760BarnumSept. 13, 1864. 45,477ConantDec. 20, 1864. 47,645ZuchettiDec. 19, 1865. (Reissue.)2,163BarnumJan. 30, 1866. 52,870McCurdyFeb. 27, 1866. 54. 31, 1858. 23,079ClemonsMar. 1, 1859. 24,088Barnum et al.May 24, 1859. 25,715Blake et al.Oct. 11. 30, 1872. 127, 043GageMay 21, 1872. 127,732BarnumJune 11, 1872. 128,876HallJuly 9, 1872. 132,026, 1871. 120,887LewittNov. 14, 1871. 122,352BarnumJan. 2, 1872. 122,613KassonJan. 9, 1872. 122, 28, 1872. 128,255SmithJune 25, 1872. 128,942BarnumJuly 16, 1872. 129,128GraffJuly 16, 1872. 129me.Date. 134,966BabcockJan. 21, 1873. 135,065BarnumJan. 21, 1873. 135,078CarpenterJan. 21, 1873. . 17, 1872. 132,235BeanOct. 15, 1872. 137,047BarnumMar. 25, 1873. 137,232OakleyMar. 25, 1873. 13[1 more...]