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one of shape and proportion of the parts, as will be seen by comparing their cross-sections. Lewis, April 26, 1864. The rollers have flat faces, and a central triangular groove, and rib respectiich turns up the wings and finishes them with a grain conformable to that of the original bar. Lewis's machine for rolling angle-iron. Angle-irons. Box-girder and T-iron. The ordinary angle allowed to maintain the hardness necessary for maintaining a sharp edge. See bronze; alloys. Lewis's annealing box. Lewis's annealing box. The top, bottom, and sides consist of three separabland crucibles:Peters,1862. English patent 2318 of 1862, asbestos, fireclay, and graphite. Lewis, 1871. A covering of asbestus twisted into a rope and wound around a crucible. 5. Packing fes are also made by taking two swaged hollow portions and welding them together. See patents of Lewis, 1871, 1872. A divided axle is one which is bisected at its midlength; the parts being couple
ed rib.Roofing machine. Landing platform.Roof stagine. Lattice girder.Roof truss. Lengthening rod.Rounder. Levee.Runner. Level (varieties, see level).Saddle. Lewis.Sand scoop. Lift. Canal.Sand pump. Lift-lock.Scaffold. Lighthouse.Scagliola. Lithofracteur.Scarcement. Lock. Canal.Scraper. Macadamizing.Screw-pile. Masonge; but this was found to cause holes in the cloth. Broadcloths require cylinders sixty-five inches long, and machinery of proportionately greater strength. In Lewis's patent cloth-cutting machine (English) the cloth is cut from list to list, or transversely, in which case the cloth is stretched by hooks at the two edges, and tEquational-box.Lap-frame. Fabric (see list).Lapping-machine. Faller.Lay. Faller-wire.Laying-machine. Felt.Lea. Felting-machine.Leaver-machine. Fiber-cleaning.Lewis. Fiber. Separating animal and vegetableLicker-in. Linen-prover. Filling-engine.Lint-doctor. Fine-drawing.Loom (see weaving). Finishing-card.Madder-style. Fi
une 29, 1858. 21,054Raymond and RobitailleJuly 27, 1858. 21,215J. RiderAug. 17, 1858. 21,478F. BealsSept. 14, 1858. 21,623William PalmerSept. 28, 1858. 21,730T. R. AustinOct. 12, 1858. 22,412J. W. CochranDec. 28, 1858. 22,511C. S. PettengillJan. 4, 1859. 22,666North and SavageJan. 18, 1859. 22,905J. WalchFeb. 8, 1859. 23,087W. C. HaynesMar. 1, 1859. 23,711J. RupertusApr. 19, 1859. 23,861J. RiderMay 3, 1859. 24,274T. BaileyJune 7, 1859. 24,312Alexander Le MatJune 7, 1859. 24,942Lewis and PflegarAug. 2, 1859. 26,641Gruler and RebetyDec. 27, 1859. 27,518W. H. BellMar. 20, 1860. 27,838F. D. NewburyApr. 10, 1860. 28,331Savage and NorthMay 15, 1860. 29,213C. R. AlsopJuly 17, 1860. 29,538C. R. AlsopAug. 7, 1860. 29,864J. M. CooperSept. 4, 1860. 30,260Aug. SpellierOct. 2, 1860. 30,494F. D. NewburyOct. 23, 1860. 30,602John AdamsNov 6, 1860. 30,843E. T. StarrDec. 4, 1860. 32,333C. R. AlsopMay 14, 1861. 32,685J. A. De BrameJuly 2, 1861. 33,770C. H. AlsopNov. 26, 1861
-derrick. Hoist.Steam-crane. Hoisting-apparatus.Steam-hoist. Hoisting-boats.Steam-winch. Hoisting-machine.Stump-extractor. Horns.Sweep. Horse-run.Tackle. Hydraulic crane.Traveler. Hydraulic elevator.Traveling-crane. Hydraulic hoist.Traveling-derrick. Hydraulic lift.Traversing-elevator. Hydrostatic press.Triangle. Ice-elevator.Water-crane. Inclined plane.Well-bucket elevator. Jack.Whimsey. Jeers.Whin. Jib.Whip. Jib-crane.Whip-crane. Jigger.Whip-windlass. Lever-hoist.Winch. Lewis.Winding-engine. Lift.Winding-tackle. Lift-canal.Windlass. Hay-hoisting apparatus. Among the modern facilities for taking care of farm produce, the horse hay-fork suspended by tackle from an elevated beam in the barn deserves a special mention. For the varieties of the fork, see fork. This device is usually suspended by tackle from the beam by means of a clutch or tongs. (See clutch.) The clutch, however, is not the only means of suspending the tackle and fork; in stacking hay a de
stances the valve-lever has a number of weights, which are added as occasion requires, or the weight is shifted in or out on the lever. See safety-valve. Lev-i-ga′tion. A process of rubbing a moist material between two hard surfaces, as in grinding pigments and printer's ink. Trituration is distinguished from levigation in the respect that the material in trituration is dry; in levigation it is wet. When the process is by muller and slab, it is technically porphyrization. Lewis. Lew′is. 1. A device for lifting stones which was used many centuries back but received its name from a Frenchman who brought it to its present form. He was an architect on the works of Louis XIV., and gave it the name it bears in compliment to his master. It consists of two dovetail tenons, which are expanded by a key in a dovetail mortise in the stone, and shackled to the hoisting-chain. The dovetail pieces are first inserted and then forced apart by the middle key, so as to occu
Channeling-machine.Incrusted Channel-iron.Intrados. Charring-chisel.Invert. Chisel in marteline.Inverted arch. Ciborium.Isodomon. Ciper-tunnel.Jack-arch. Civery.Jamb. Clinker.Jasper. Closer.Joggle. Clustered arch.Jointer. Cob-wall.Jointing-rule. Coffer-work.Kevel. Columbaria.Keystone Commissure.Kinsh. Concrete.Knapping-hammer. Coping.Knobbing. CorbelLagging. Corbel-table.Lapis lazuli. Cordon.Later. Counter-fort.Ledgement. CountermureLedger. Counter-vault.Level. Countess.Lewis. Course.Liernes. Coursed masonry.Line-pin. Coursed-rubble masonry.Liner. Coussinet.Lockrand. Cover.Lunette. Coving.Lutheran. Creasing.Lychnoscope. Crest-tile.Mallet. Cresting.Mantel. Cross-bond.Marble Artificial Cross-springer.Marble-cement. Crypt.Marble-grinding machine. Curb.Marbleizing slate. Cushion.Marble-polishing machine. Cut-splay.Marble relief-work. Cut-stone.Marbles. Playing Dead-flue.Marble-worker's files. Dead-wall.Marble-working. Marcus.Serpentine. Marmor
A mode of producing by photographic means designs upon stone, from which impressions may be obtained in the ordinary lithographic press. Indications of efforts in this direction may be credited to the late Joseph Dixon of Jersey City, and to Lewis of Dublin, about 1841. Dixon's attempt was analogous to Poitevin's process, as described hereafter, and Lewis's was an ingenious modification of the daguerreotype process, in which a thin surface of silver applied to an underlying resinous coatiLewis's was an ingenious modification of the daguerreotype process, in which a thin surface of silver applied to an underlying resinous coating was so treated subsequent to the photographic image being produced thereon, by exposure to light and mercurial fumes, as to lay bare portions of the greasy or resinous matter, which was then susceptible of transfer. No specimens or contemporaneous description by either method is known to be extant. The following embrace all the typical photolithographic processes at present known: — 1. Lemercier, Barreswill, and Lerebours of Paris patented in France, July 3, 1852, a method which consist
il. x′, Pierce's rail, on high standard. y′, Greave's pot-sleeper. z′, Reynold's continuous bearing. a′, Stephenson's chair and rail. b′, Adams's rail. c′, Button's rail, with steel top. d′, Brooks's steel-capped rail. e′, Lewis's rail. f′, Hanmer and Grim's steel-topped rail. g′, Hagan's rail h′, Chamber's rail, on elastic webs. i′, Robinson's double rail. j′, Pierce's rail. k′, Peckham's rail. l′, Perkins's rail. m′, Shephard's steel-top rail. through tuyeres, and the process consists in exposing the molten iron to the oxygen of the air, so as to burn away a part of the carbon and also remove certain noxious matters with which the iron is combined. the iron is then run into molds. Lewis's refining reverberatory-furnace is thus worked. The fire of pitcoal is made on the grate bars, and when a melting heat is attained, the door of the iron-chamber is opened, and the basin occupying the middle of the floor
ckersgillMar. 11, 1873. 137,028RehfussMar. 18, 1873. 137,199Hoppe et al.Mar. 25, 1873. 138,902Lewis et al.May 13, 1873. 140,787MeloneJuly 15, 1873. 141,791Hirons et al.Aug. 12, 1873. 144,864Por,962AldrichApr. 25, 1871. 128,008BeanJune 18, 1872. 131,786Sargent et al.Oct. 1, 1872. 134,606LewisJan. 7, 1873. 3. Sewing Hose. 31,214RiceJan. 22, 1861. 73,709FrenchJan. 28, 1868. 74,289Blake. — miscellaneous parts. 1. Bobbin-Winders. No.Name.Date. 36,899FinkleNov. 11, 1862. 39,236Lewis et al.July 14, 1863. 80,908CallenAug. 11, 1868. 110,267MoffittDec. 20, 1870. 114,442JenksMay 1869. 93,010RogersJuly 27, 1869. 93,540JonesAug. 10, 1869. 94,175BensterAug. 31, 1869. 95,362LewisSept. 28, 1869. 102,469AlterMay 3, 1870. 103,159DodgeMay 17, 1870. 103,318FisherMay 24, 1870. nd lowered at regular intervals, being driven by a chronometer. See also No. 2,912, of 1862. Lewis' velocimeter, November 26, 1867, has a train of gearing, which gives indications at regular inte
l seek and keep the deepest portion and current of the river. It was not used, as Verdun capitulated just before it was to be launched. Spar-torpedo. A drifting spar-torpedo intended to overcome obstructing chains or booms was invented by Lewis, of the British Royal Engineers. It had a spar weighted to float nearly vertically, and when the upper end met with an obstruction, the lower end passed underneath, and, the weight being dropped by the action, the lower end, carrying the torpedo water within the drum may be retained at any required level to give the air a greater or less compression. The cistern has a floodgate to regulate the admission of water. The contracted portion of the tube b is termed the etranguillon. See Lewis's Glossary of commerce, page 267; see also Carl, Repositum Phys. Et Tech. Trompe. Tron. 1. A steelyard balance. 2. A wooden air-shaft in a mine. Tro′phy. A commemorative or triumphal erection. The trophies of the Greeks wer
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