. Spons' dictionary of engineering, civil, mechanical, military, and naval; with technical terms in French, German, Italian, and Spanish . 090 •00708 36 004 000016 000012 GEAEING. 1621 The gauge, Fig. 3139, manufactured by Elliott Bros,, London, is one of the standard Govern-ment gauges employed in the Koyal Gun Factories. These gauges measure from 36 to 40 in. out-side, and 64 in. inside ; they read by vernier to • 001 of an inch. Some of these gauges are from 4 to5 ft. in length. The one shown in Figs. 3139, 3140,will measui-e from 0 to 12 in. Naylors gauge for iron isthe one chiefly used by
. Spons' dictionary of engineering, civil, mechanical, military, and naval; with technical terms in French, German, Italian, and Spanish . 090 •00708 36 004 000016 000012 GEAEING. 1621 The gauge, Fig. 3139, manufactured by Elliott Bros,, London, is one of the standard Govern-ment gauges employed in the Koyal Gun Factories. These gauges measure from 36 to 40 in. out-side, and 64 in. inside ; they read by vernier to • 001 of an inch. Some of these gauges are from 4 to5 ft. in length. The one shown in Figs. 3139, 3140,will measui-e from 0 to 12 in. Naylors gauge for iron isthe one chiefly used by the manufacturers of England,and is similar to the one represented in Figs. 3139,3140 ; Naylors gauge by vernier reads to the -^part of an inch. The micrometer gauge, Fig. 3141, isused to measure wire, sheet metal, and other sub-stances to the 001 of an inch. It is the most com-plete little instrument of the sort yet using this instrument it should be manipulatedwith great delicacy, as undue pressure would destroyits accuracy. A gauge of this kind, made by ElliottBros., for the Eoyal Mint, reads to the -0001 of an. inch. There are other peculiar contrivances termed gauges, such as the standard for measur-ing the height of recruits ; the instrument employed to measure buckles and indents in targets ;standard yards and rods ; and the stadiometer used in the army, which require no particulardescription. GAUGE, Steam. Fr., Manomètre ; Ger., Monometer ; It at.,, Manometro ; Span., Manometro. See Details of Engines. Gauge. Vacuum-gauge. GEARING. Fr., Engrenage, Communication de mouvement ; Ger., Verzahnung ^ Verbindung sthe il yGeschier ; Ital., Ruote dentate ;> Span., Aparato de trasmisión de movimiento. Nomenclature of the Curves used for the Form of the Teeth of Wheels.—The form to be given to theteeth of wheels is an essential point in their construction, for on it depends, in a great measure,the regularity of the motion and the wear of the wheels. Origi
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