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Knight's Mechanical Encyclopedia (ed. Knight), D. (search)
er provided with conveyors and operated by gear-wheels. The pulverized ore is placed in the center of the oven, and carried by the conveyor to the discharge-hole near the outside. Rotary-table furnace. Desulphurizing-furnace. Detached escapement. Another form is that in which the ore is placed on movable plates, and, when heated to redness, is drawn out of the furnace by the chains, and dumped into water. When removed from water, it is crushed before passing to the cupola. In Hagan's process, superheated steam is introduced into the furnace and decomposed, the hydrogen flame attacking the sulphur, arsenic, and antimony. De-tached′ es-cape′ment. The detached escapement was invented by Mudge in the seventeenth century. Earnshaw's detached escapement has two vibrations of the balance for each impulse, resembling the duplex in this respect. A is the main pallet projecting from the balance-arbor, concentric with which is another small pallet, called the lifting-pa
Knight's Mechanical Encyclopedia (ed. Knight), R. (search)
air. r′, English rail and chair, 1840. s′, Samuel's cast-iron sleeper. t′, Barlow's rail (English). u′, tubular socketed rail. v′, Seaton's saddle-rail. w′, elastic rail. x′, Pierce's rail, on high standard. y′, Greave's pot-sleeper. z′, Reynold's continuous bearing. a′, Stephenson's chair and rail. b′, Adams's rail. c′, Button's rail, with steel top. d′, Brooks's steel-capped rail. e′, Lewis's rail. f′, Hanmer and Grim's steel-topped rail. g′, Hagan's rail h′, Chamber's rail, on elastic webs. i′, Robinson's double rail. j′, Pierce's rail. k′, Peckham's rail. l′, Perkins's rail. m′, Shephard's steel-top rail. 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 st