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Knight's Mechanical Encyclopedia (ed. Knight), A. (search)
thing judging by their derivation, but the former is applied to instruments used by geologists for measuring the dip of strata, and the latter for measuring the angles of crystals. A try-square may be termed an angulometer, a bent measure. Thayer, August 26, 1862. This invention consists in so constructing and hanging a pendulum, and connecting it with a portion of the surface of a sphere, that it will indicate at once whether any plane to which it is applied is level; and if not so, will show the degrees of the angle, whether of elevation or depression, which such plane makes with the horizon. Thayer's plane angulometer. The pendulum moves upon three or more bearings in the same plane, and carries upon its top a graduated are, acting in combination with the spherical surface and the opening therein. Hall's angulometer. Generese angulometer. Hall's angulometer has two hinged legs, and a graduated are which indicates the dihedral angle. An instrument called a
Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
(Reissue.)5,342Edwards et al.Apr. 1, 1873. 137,665EllsApr. 8, 1873. 138,134CooneyApr. 28, 1873. 139,421RehfussMay 27, 1873. (Reissue.)5,436Edwards et al.June 3, 1873. 140,041HockensmithJune 17, 1873. 141,894SecorAug. 19, 1873. 143,104ThayerSept. 23, 1873. 143,303SchofieldSept. 30, 1873. 144,395KnoxNov. 11, 1873. 145,348HunterDec. 9, 1873. 148,072KnoxMar. 3, 1874. 148,457HockensmithMar. 10, 1874. 150,533CraneMay 5, 1874. 152,041LoomisJune 16, 1874. 154,117BlakeAug. 18, 1874. 156,933MangusNov. 17, 1874. 22. Spools and Bobbins. 126,332ReeveApr. 30, 1872. 135,125JuengstJan. 21, 1873. 136,282ThayerFeb. 25, 1873. 23. Stitches. 16,120JohnsonNov. 25, 1856. 17,255BosworthMay 12, 1857. 23,984McCurdyMay 10, 1859. 26,906JohnsonJan. 24, 1860. 27,620DavisMar. 27, 1860. 27,999McCurdyApr. 24, 1860. 34,454WeitlingFeb. 18, 1862. 36,616HumphreyOct. 7, 1862. 39,658JewettAug. 25, 1863. 46,133ParhamJan. 31, 1865. 49,837SibleySept. 5, 1865. 85,891ReedJan. 12, 1869. 86,