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Knight's Mechanical Encyclopedia (ed. Knight), F. (search)
1. 32,451J. H. MerrillMay 28, 1861. 33,536J. H. MerrillOct. 22, 1861. 33,847D. MooreDec. 3, 1861. 34,859C. B. HoldenApr. 1, 1862. 35,284W. H. ElliotMay 13, 1862. 35,989C. C. BrandJuly 29, 1862. *36,174J. Q. A. ScottAug. 12, 1862. 36,721J. V. MeigsOct. 21, 1862. 36,779S. HowardOct. 28, 1862. 37,376Le Roy S. WhiteJan. 6, 1863. 38,280C. C. BrandApr. 28, 1863. 38,645E. H. AshcroftMay 26, 1863. 38,943C. C. BrandJune 23, 1863. 40,884J. H. MerrillDec. 8, 1863. 41,814W. C. HicksMar. 1, 1sNov. 28, 1865. 54,744J. LeeMay 15, 1866. 54,934J. V. McigsMay 22, 1866. 59,549J. N. AronsonNov. 13, 1866. 62,077C. SharpsFeb. 12, 1867. 64,650J. ElsonMay 14, 1867. 66,709A. J. H. HiltonJuly 16, 1867. 67,633J. ElsonJuly 23, 1867. 81,100J. V. MeigsAug. 18, 1868. 86,387Elson and SchaeferFeb. 21, 1869. 88,645R. S. LawrenceApr. 16, 1869. *88,853T. CullenApr. 13, 1869. 89,955L. B. TiebelMay 11, 1869. *101,845D. EllisApr. 12, 1870. 104,775S. RydberkJune 28, 1870. 114,259H. BuchnerMay 2
Knight's Mechanical Encyclopedia (ed. Knight), I. (search)
mes3240 And two side arches of 210 feet span each.245,308 English tons of 2,240 pounds.Rennie. 1836 Carrousel Scine318715.5Poloncean. 1859TarasconRhone204 416.6 1854St. PetersburgNeva15013.8 New BlackfriarsThames5185 And four spans of 155, 175, 175, 155 feet; roadway and sidewalk, 75 feet wide.17 Georgetown Aqueduct Two cast-iron pipes having a water-way of 42 inches, arched in form, carrying the roadway and forming conduits for the water supply of Washington.Rock Creek120020Meigs. In 1801 Telford proposed a cast-iron bridge (a, Fig. 2701) of 600 feet span across the Thames, and 2701) in preference to the suspension-bridge of 570 feet span erected by him. Other forms of iron-bridges involve the use of wrought-iron, as in the examples a, b, c, Fig. 2702, which are combinations of the arch and truss. a is known as the rectangular tubular arch bridge. b, iron-arch and lattice-girder bridge. c, strut girder bridge. d. The Kuilinburg bridge over the Leck
Knight's Mechanical Encyclopedia (ed. Knight), M. (search)
artridges. The blocks fit in the cartridge-box, and when in use are attached to the side of a rifle, near the breech-block, by dovetail or pin fastening. Maga-zine′ fire-arm. One containing a supply of cartridges, which are automatically fed to the chamber at the rear end of the barrel. There are several types. 1. Those in which the magazine is a tube below the barrel, as in the Winchester, the Ward-Burton, etc. 2. Those in which the magazine is in the stock, as in the Spencer, Meigs, and others. 3. Those in which the magazine is a separate piece attachable to the gun when required, as in the Elliot carbine, the Gatling battery-gun, etc. See battery-gun. The Marquis of Worcester (d. 1667), in his Cen- tury of Inventions, refers to an often-discharging pistol, but does not describe it. In 1575, several of such arms were stored in the Tower of London. Porta, in his Natural Magick, 1658, speaks of a great brass gun, or hand-gun, which may discharge ten or more bull
Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
longing to the potteries, and is variously spelt seggar, saggar, segger, sagger. Seg-ment′al arch. （Architecture.) One described from a center, and having less or more than 180°; usually less. The Washington aqueduct bridge, built by General Meigs, over Cabin John Creek, Maryland, consists of a single arch of this kind; it has a span of 220, a rise of 57 feet, and its span is exceeded by but one other stone arch in the world. See stone arch. Seg-ment′al valve. A valve whose s some facts in relation to a number of the most remarkable stone bridges in the world. Widest Arch. Name.River.Place.Number of Arches.Span.Rise.Curve.Architect.Date. Ft. In.Ft. In. Washington AqueductCabin John CreekMaryland1220 090 0SegmentMeigs1861 ChesterDeeChester200 042 0SegmentHarrison1820 Vielle BriondeAllierBrionde1183 370 3SegmentGrennier1454 UlmDanubeUlm181 222 3SegmentWiebeking1806 Castle VecchioAdigeVerona159 1055 3EllipseUnknown1354 LavourAgontLavour159 1064 8EllipseSage