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Knight's Mechanical Encyclopedia (ed. Knight), A. (search)
otion, causing a rapid and abundant flow downward at the center, and upward along the inner surface of the pan. The pulp is thus made to circulate until the complete pulverization of the quartz and amalgamation of the metals have taken place. Coleman, August 18, 1863. The muller of this pan is driven, as are the preceding, by the central vertical shaft which is projected up the central cavity of the annular pan. The shaft supports a balance-rynd a, to whose ends are attached the muller C, wf the upper plate D by the set screws c, which are four in number and set at opposite points. By this double adjustment the spaces between the grinding surfaces are gradually approached, as the pulp becomes finer in the progress of the work. Coleman's amalgamator. Wheeler's amalgamating pan. Wheeler, December 8, 1863. The lower face of the rotary-muller has spirally curved grooves which act in apposition to reversedly curved spiral grooves on the bed-plate or stationary muller. Fig.
Knight's Mechanical Encyclopedia (ed. Knight), F. (search)
4, 1858. 25,470J. RiderSept. 13, 1859. 26,362S. W. MarshDec. 9, 1859. *27,393C. M. SpencerMar. 6, 1860. 27,509N. L. BabcockMar. 20, 1860. 27,874G. P. FosterApr. 10, 1860. 33,317F. CurtisSept. 17, 1861. 33,745T. LeeNov. 19, 1861. 35,217C. C. ColemanMay 13, 1862. 35,354J. M. SeymourMay 20, 1862. 35,488J. C. CookeJune 3, 1862. *36,062C. M. SpencerJuly 29, 1862. 36,466F. W. HoweSept. 16, 1862. 37,501L. GeigerJan. 27, 1863. 38,042I. HartshornMar. 31, 1863. 39,120J. W. CochranJuly 7, 1gsApr. 24, 1866. 54,743Laidley and EmeryMay. 15, 1866. 56,399G. P. and G. F. FosterJuly. 17, 1866. 56,890J. BradleyAug. 7, 1866. 58,444R. McChesneyOct. 2, 1866. *58,737C. M. SpencerOct. 9, 1866. *58,738C. M. SpencerOct. 9, 1866. 59,500C. C. ColemanNov. 6, 1866. 60,106H. H. WolcottNov. 27, 1866. *60,910T. W. LaneJan. 1, 1867. 60,998H. M. and M. J. ChamberlainJan. 8, 1867. 61,722Silas CrispinFeb. 5, 1867. 62,873A. S. MungerMar. 12, 1867. 64,786W. H. and G. W. MillerMay. 14, 1867.
Knight's Mechanical Encyclopedia (ed. Knight), R. (search)
n′, Day and Mercer's rail. o′, Dwight's rail. p′, Zahn's rail. q′, Johnston's rail. r′, Stephens and Jenkins's rail. s′, Sanborn's tubular rail. t′, Sanborn's rail. u′, Angle's L-rail on continuous sleeper. v′, Dean and Coleman's street-car rail. w′, rail and sleeper, for the East Indies. The sleeper is bent from a plate of wroughtiron to resist the attacks of insects which destroy wooden sleepers. Parkin's vitrified sleeper, patented in England in 1835, consisty solid and well built, and the locomotives have vertical boilers placed in the middle of their length. The boilers maintain their perpendicularity in ascending grades of 1 in 5 1/4. The line was opened for public traffic on May 23, 1873. Coleman's device for ascending heavy grades, English patent, July 30, 1845, consists of an endless screw beneath the locomotive and working into a line of rollers laid down midway between the rails. The screw is driven by bevel-gear fixed