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HISTORY OF THE TOWN OF MEDFORD, Middlesex County, Massachusetts, FROM ITS FIRST SETTLEMENT, IN 1630, TO THE PRESENT TIME, 1855. (ed. Charles Brooks) 2 0 Browse Search
Knight's Mechanical Encyclopedia (ed. Knight) 2 2 Browse Search
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Knight's Mechanical Encyclopedia (ed. Knight), C. (search)
per may be impaled, and, when withdrawn, answer as a pattern. 2. A head-measurer used by hatters. Confection-pan. Conge. A small circular molding occurring at the junction of the shaft of a column with its base. The echinus, or quarterround, is a swelling conge; the cavetto is a hollow conge. Congreve. A phosphorous match ignited by friction. See Lightingdevices. Con′greve-rock′et. The Asiatic rocket improved and employed as a formidable instrument of war by Sir William Congreve, 1804. See rocket; gunpowder. Con′--cal-gear′ing. An arrangement of gearing in which a pair of cogged cones transmit through interposed pinions motion of the required speed. Con′i-cal-pend′u-lum. A pendulum of a conical shape suspended by a wire and moving in a circular path in a horizontal plane. See pendulum. A term sometimes applied to the rotating ball governor. Con′i-cal-pul′ley. Conical-pulleys are used in cotton machinery where a gradually in
Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
by wires twined among the meshes of the wire cloth on which the paper is made See water-mark. Threads embodied in the web of the paper. Colored threads systematically arranged were formerly used in England for postoffice envelopes and exchequer bills. Silken fibers mixed with the pulp or dusted upon it in process of formation; as used in the United States paper currency. Tigere, 1817. Treating the pulp or the paper, previous to sizing, with solution of prussiate of potash. Sir Wm. Congreve, 1819. A colored layer of pulp in combination with white layers. Priating upon one sheet and covering with an outer layer plain or water-marked. Glynn and Appel, 1821 Mixing a copper salt in the pulp and afterward adding an alkali or alkaline salt to produce a copious precipitate. The pulp is then wished, made into paper and dipped in a saponaceous compound. Stevenson, 1837. Incorporating into paper a metallic base, as manganese, and a neutral compound, as prussiate of pot