Gearing

( Mach.) A term applied to the parts of machinery by which motion in one part of a machine is communicated to another. G. consists in general of toothed-wheels, friction-wheels, endle bands, screws, ., or of a combination of these. When the communication between the two parts of the machine is interrupted, the machine is said to be out of gear; and when the communication is restored, it is said to be in gear. In the case of a threshing-mill, e. g., driven by a steam engine, the G. usually consists of an endle band which communicates motion from the axle of the fly-wheel to that of the drum. If the band were slipped off from tralia, at the head of the westerly arm of Port Philip, about 40 m. S.W. of Melbourne, with which it is connected by railroad. Geese, pl . of Goose, q . v. Géflé, a town of Sweden, at the mouth of the river Géflé, on an inlet of the Gulf of Bothnia, about 100 m. N.N.W. of Stockholm. Its exports are iron, timber, tar, flax, and linen. Gehen'na. ( Script .) [Lat.; Gr. geenna , from Heb. ge hinnon, the valley of Hinnom.] The valley of Hinnom, where the Jews burnt their sons and daughters in the fire to Moloch, is in the authorized version of the Scriptures translated by hell. By med iæval writers it was used not only in this sense, but generally in that of pain and suffering. Gehlenite, n . ( Min .) A silicate of alumina and lime found in the Ta a valley in the Tyrol. Crystals, square prisms. Lustre, resinous. Color, grayish-green to brown. Sp . gr . 29-3-067. Comp . Silica 29-9, alumina 215, sesquioxide of iron 6-6, lime 42. G. occurs as an artificial product in furnace scoria in thin square tables or 8sided prisms.