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Knight's Mechanical Encyclopedia (ed. Knight), A. (search)
panning. Partz, July 14, 1863. The powdered ore is distributed in a dry state over the current of mercury flowing upon the inclined surface of the metallic trough. The surface of the latter is amalgamated with mercury, and that which flows to the lower end is re-elevated and again distributed upon the trough. A current of water and an agitator-wheel assist in removing the tailings which reach the receptacle at the lower end of the trough. Peck's amalgamator. Partz's amalgamator. Hill's amalgamator. hill, January 1, 1861. This operates by centrifugal action. The rotating basin has a central depression to contain the mercury, and its surfaces are amalgamated to cause adhesion of the amalgam, as it is formed by the contact of the mercury with the precious metals in the pulverized ore. The water, quartz, and lighter impurities are expelled over the edge of the basin by centrifugal force, while the heavier, valuable results settle into the central pocket. Gardiner, Oc
Knight's Mechanical Encyclopedia (ed. Knight), C. (search)
sulphate of zinc. Sulphate of copper, in crystals, is then gently dropped in, falling to the bottom, where it dissolves, and remains, owing to its greater specific gravity. Of the Callaud battery, there are several modifications; namely, — Hill's, in which a vertical glass-tube, open at both ends, is introduced, its lower end resting in the copper solution, its upper end extending up to the top of the cell. Its function is that of a feedingreservoir for the copper solution, the sulphaterresponding to the lines of type. Babcock, 1854; a sheet carried on a revolvingplaten to plates of successive colors. Sweet, 1855; narrow distributing rollers carrying various inks and laying them in belts on the inkingroller. Baker and Hill, 1863; a continuous sheet of paper is printed in two colors, by intermittent motion and successive exposure to two reciprocating platens carrying forms which receive their specific colors from their own set of inking-rollers. In Baylies and Woo
Knight's Mechanical Encyclopedia (ed. Knight), E. (search)
he sheet with the aid of metallic formers, and folded and gummed them by hand with the brush, in the manner generally practiced until a comparatively recent period. An envelope-machine was invented as far back as 1840, but De la Rue's, 1845, appears to have been the first which achieved any notoriety. Envelope-machines, so called, generally comprise only provisions for folding and gumming the envelope after it has been cut to the proper form. The English envelope-machine, invented by Hill and De la Rue, operates upon diamond-shaped pieces of paper, which are successively placed on the platform. A plunger descends and forces the central part of the paper into an oblong quadrangular cavity; the four corners stand erect and are successively flattened by four fingers. When the folding is completed, two india-rubber fingers lightly touch the envelope and draw it aside to make room for another. These fingers are small metallic cylinders with tips of india-rubber, which adhere s
Knight's Mechanical Encyclopedia (ed. Knight), F. (search)
onJan. 27, 1852. 14,253Robertson and SimpsonFeb. 12, 1856. 16,288Schroeder, Salewski, and SchmidtDec. 23, 1856. 17,644G. SmithJune 23, 1857. 17,915T. BuckmanAug. 4, 1857. 23,505T. E. ShullApr. 5, 1859. 24,437T. BaileyJune 14, 1859. 24,936A. V. HillAug 2, 1859. 28,460W. H. ElliotMay 29, 1860. 31,809E. LefaucheurMar. 26, 1861. 32,421A. V. HillMay 8, 1861. 32,790C. SharpsJuly 9, 1861. 34,561W. H. BrownMar. 4, 1862. 43,284F. BealsJune 28, 1864. *45,638R. RobertsDec. 27, 1864. 46,207F.A. V. HillMay 8, 1861. 32,790C. SharpsJuly 9, 1861. 34,561W. H. BrownMar. 4, 1862. 43,284F. BealsJune 28, 1864. *45,638R. RobertsDec. 27, 1864. 46,207F. BealsFeb. 7, 1865. *46,286H. F. WheelerFeb. 7, 1865. 51,837B. F. JoslynJan. 2, 1866. 52,258F. BealsJan. 30, 1866. 58,525D. WilliamsonOct. 2, 1866. 65,704R. E. StephensJune 11, 1867. *66,110H. F. WheelerJune 25, 1867. 66,913Thrasher and AikenJuly 16, 1867. 70,264S. S. RembertOct. 29, 1867. 71,349E. WhitneyNov. 26, 1867. 76,734C. H. AlsopApr. 7, 1868. 82,908D. WernerOct. 6, 1868. *87,038W. GardnerFeb. 16, 1869. 88,605W. BriggsApr. 6, 1869. 92,799L. DelassizeJuly 20, 1869. *112,795H
Knight's Mechanical Encyclopedia (ed. Knight), G. (search)
the protoxide of iron to the sesquioxide. The resulting mixture contains hydrated sesquioxide of iron, sulphate of lime, and sawdust. When an excess of hydrate of lime is employed, the resulting mixture contains this substance also. This material is very effective in removing the sulphur compounds from the gas, and is not offensive when fouled with sulphur. The latter may be distilled to produce sulphuric acid. Gas-register. Gas-regulator. Gas-regulator. The iron-ore process of Hill consists in the use of the natural hydrated sesquioxide of iron or bog iron ore, to which is added by the New York Gas-Light Company a quantity of iron borings and turnings moistened by ammoniacal liquor and exposed to the air. To the mixture is added pulverized charcoal. Other ores are used in Germany, where the oxides of iron are used in purification, to the exclusion of all the lime processes. In some forms of apparatus for the purification of gases which are led through a liquid, a wh
Knight's Mechanical Encyclopedia (ed. Knight), L. (search)
ription, veils, falls, scarfs, shawls, lappets, curtains, etc. The dates of some of the inventions connected with lace-making are as follows: — Bobbin-lace invented by Barbara Huttman of St. Annaberg, Germany1561. Pillow-lace making taught at Gt. Marlow, England1626. Strutt's machine for making open work stockings1758. Crane's Vandyke machine1758. Else and Harvey's pin machine1770. Frost's point-net machine1777. Dawson's point-net machine1791. Heathcoat's bobbin-net machine1801. Hill's plain ground net machine1816. Limerick lace made1829. Laced-stocking. A bandage support for varicose veins, weak legs, etc. Lace-mak′ing ma-chine′. Lace is a delicate kind of network composed of silk, flax, or cotton threads, twisted or plaited together. See lace. The meshes are of an hexagonal figure, in which thick threads are also interwoven to form the pattern, according to some design; and these threads, which are called gymp, form the ornament of the lace. The <
Knight's Mechanical Encyclopedia (ed. Knight), N. (search)
cards are fed singly to a horizontal table under a type-box containing the form, which is vertically reciprocated to receive ink from the rollers and to print the cards, which are held in place by guides extending from the feeding-tube to the receivingtube. The numbers are engraved on the peripheries of wheels by which they are impressed on the cards. Paging-machine. Hoe's machine has peculiar mechanism for rotating the registering disks and a separate apparatus for inking them. In Hill's machine (Fig. 3338) the numbering-apparatus moves with the bed of a press operated in the ordinary manner, the inward movement of the bed-plate causing a springpawl to engage with a ratchet, and presenting the required number. A cross-head H is arranged to slide in vertical guides formed in the sideframes. In the longitudinal opening in the cross-head are fitted the stems of a number of hangers, each of which carries a numbering-wheel, and each wheel has a number of projecting types for i
Knight's Mechanical Encyclopedia (ed. Knight), P. (search)
lso makes dental plates. Streeter, 1869, applies it as a veneer to dental plates; molds by heat and pressure. Hunt, 1874; Newton, 1872; Pursell, 1872; Troutman, 1871, refer to the use of pyroxyline with dental plates, for attaching teeth. Hill, 1869, combines with coloring-matter and asbestus; covers layers of cotton, felt, woolen, wire gauze, etc. McClelland, 1868, adds gum-copal, coloring-matter, and phosphate of ammonia. Dry by gentle heat, pulverize. Seeley, 1868, adds nitro-elland1868. 90,765.McClelland1869. 90,766.McClelland1869. 96,132.McClelland1869. 3,777.McClelland1869. 3,778.McClelland1869. 88,228.Streeter1869. 88,229.Streeter1869. 88,260.Streeter1869. 89,253.Streeter1869. 89,254.Streeter1869. 93,086.Hill1869. 88,633.Hyatt1869. 88,634.Hyatt1869. 89,582.Hyatt & Blake.1869. 91,341.Hyatt & Blake1869. 91,377.Spill1869. 91,378.Spill1869. 97,454.Spill1869. 91,393.Whitehouse1869. 105,338.Hyatt1870. 105,823.McClelland1870. 113,055.Hyatt et al187
Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
on the body of the safe, with or without an interior plate. Also fire-proofing with alum and non-conducting materials. Hill, 1865, and Hodgson, 1865. Sliding doors of peculiar form to resist the operations of burglars. Loysel, 1865. A protec. 83,910BonnazNov. 10, 1868. 95,186BergerSept. 28, 1869. 106,943LakeAug. 30, 1870. 148,182CornelyMar. 3, 1874. 159,673HillFeb. 9, 1875. 1. （b.) Reciprocating Loop-Taker. No.Name.Date. 6,437ConantMay 8, 1849. 7,369ReynoldsMay 14, 1850. side the frame. The machine was one of a chain of inventions, but was not otherwise practically useful. Burstall and Hill's steam-carriage, 1824. This machine bears some resemblance to the former, having the engine and boiler behind the carria Amalgams of silver, tin, or cadmium. Os artificial: oxychloride of zinc mixed with a liquid. Foil: gold or tin. Hill's stopping: india-rubber and silex. 3. (Engraving.) Covering with varnish such parts of an etched plate as may have b
Knight's Mechanical Encyclopedia (ed. Knight), T. (search)
,522.FlammNovember6, 1866. 62,206.JohnstonFebruary19, 1867. 65,807.HallJune18, 1867. 79,265.Sholes et alJune23, 1868. 79,868.Sholes et alJuly14, 1868. 81,000.PrattAugust11, 1868. 87,941.JohnsonMarch16, 1869. 94,329.MooreAugust31, 1869. 109,161.WashburnNovember8, 1870. 115,287.DraperMay30, 1871. 118,491.SholesAugust29, 1871. 124,437.HalsteadMarch12, 1872. 125,952.HansenApril23, 1872. 127,739.CadmusJune11, 1872. 133,841.EdisonDecember10, 1872. 139,914.PemberJune17, 1873. 140,921.HillJuly15, 1873. 144,450.GallowayNovember11, 1873. 148,946.GallyMarch24, 1874. 158,071.HansenDecember22, 1874. 168,898.HansenOctober19, 1875. 169,757.AlissoffNovember9, 1875. 170,233.CaseNovember23, 1875. 170,239.CrandallNovember23, 1875. 170,621.DemingNovember31, 1875. 171,139.JohnsonDecember14, 1875. 171,335.AllenDecember21, 1875. 171,408.MorganDecember21, 1875. See also the following English patents :— No.Date.No.Date. 395, of1714.306, of1869. 9,204, of1841.997, of1869. 9,
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