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Knight's Mechanical Encyclopedia (ed. Knight), C. (search)
another. In Fig. 1103, the brake-bars of a train are simultaneously worked by means of longitudinal connecting-rods under the car-beds and gimbal-joint connections between cars. The longitudinal screw-shaft turns in bearings in the truck, and operates a nut which is connected to and actuates the brake-levers. Car-brake. 3. Brakes operating continuously throughout the train are found in the patents of Marks, 1854, acting by rods and chains; Stewart, 1859, having rods and cog-wheels; Burrows, 1862, by rods and levers. Devlan's patent of 1861 acts by grasping the axle of the wheels; Blanchard's, 1866, by a shoe on the rail. Of the car-brakes exhibited at the Paris Exposition, 1862, Creamer's was automatic, instantaneous, and simultaneously applied to all the wheels of each car. The machinery of the system in common use remains unaltered, but there is added to it a reserved power in the form of a closely wound and powerful spiral spring, which may be set free by the pull
Knight's Mechanical Encyclopedia (ed. Knight), Z. (search)
Feb. 28, 1854. 10,696.Jones, Mar. 28, 1854. 10,711.Trotter, Mar. 28, 1854. 12,329.Selleck, Jan. 30, 1855. 12,333.Trotter, Jan. 30, 1855. 12,418.Wetherell, Feb. 20, 1855. 12,613.Gardner, Mar. 27, 1855. 13,332.Jones, July 24, 1855. 13,416.Burrows, Extended. Aug. 14, 1855. 13,431.Jones, Aug. 14, 1855. 13,806.Wetherill, Nov. 13, 1855. 15,448.Wharton, July 29, 1856. 15,830.Wetherill, Sept. 30, 1856. 16,594.Kent, Feb. 10, 1857. 20,655.Monnier, June 22, 1858. 20,926.Wharton et al., July 19, 1864. 67,839.Bartlett et al., Aug. 20, 1867. 69,573.Mills, Oct. 8, 1867. 72,032.Hall, Dec. 10, 1867. 73,146.Wetherill, Jan. 7, 1868. 73,147.Wetherill, Jan. 7, 1868. 83,643.Lees, Nov. 3, 1868. 95,484.Jones, Oct. 5, 1869. 108,965.Burrows, Nov. 8, 1870. 138,684.Osgood, May 6, 1873. 136,685.Osgood, May 6, 1873. 139,701.Bartlett, June 10, 1873. 142,571.Lang, Sept. 9, 1873. 145,976.Trotter, Dec. 30, 1873. See also white-lead. Zir-co′ni — a light. One in which a stick