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Knight's Mechanical Encyclopedia (ed. Knight), A. (search)
han the space to be filled. white metal alloys. Copper.Tin.Zinc.Lead.Antimony.Arsenic.Bismuth.Nickel.Brass. Speculum Metal11 Speculum Metal621 Speculum Metal743 Pewter6112216 Pewter41 Hard Pewter419216 Best Pewter10017 Pewterer's Temper 12 Pot Metal (used also for fauects)106 – 81 Shot Metal56 Cowper's alloy for turning in the rose engine for subsequent printing as letter press21 Biddery Ware1621284 Britannia Metal112 Britannia Metal (another formula)4444 Britannia Metal (Lardner's)8392288 Britannia Metal (Overman）38817Steel. German Tutania1484 Spanish Tutania2421 Queen's Metal9111Cadmium. Queen's Metal (another formula)410081 Parisian White Metal69.85.519.84.7 Common Albata or German Silver20163 – 4 Best Albata or German Silver208 – 10Iron.5 – 6 White Copper or Tutenag503119 Packfong (Chinese）40.425.42.631.6 Packfong (more malleable)577 Packfong53.391317.48 German Silver (finest quality)121 German Silver (for rolling)206025 German Silver (for ca
Knight's Mechanical Encyclopedia (ed. Knight), B. (search)
Used for polishing steel, etc. The name is derived from Bristol, England, near which city they are made. Brisure. （Fortification.) A break in the general direction of the parapet of the curtain, when constructed with orillons and retired flanks. Brit-annia-met′al. A white-metal alloy, resembling silver in some degree, and used for making table-ware, etc. There are several formulas for compounding this white alloy for table-ware:— Copper.Tin.Antimony.Bismuth.Brass.Zinc. Lardner's8392288 Overman's38871 Another112 Another4444 Another210028 See ante, White-Metal Alloys, p. 63. Brit′ish-gum. An adhesive material, used by calico-printers, and made by scorching potato-starch. Britz′ska. （Vehicle.) A Russian carriage, having a calash top and interior arrangements adapted for use as a couch on long journeys. Broaches. Broach. 1. A tapering steel tool, of prismatic form, and whose edges are used for reaming out holes. It is particularl
Knight's Mechanical Encyclopedia (ed. Knight), C. (search)
, the wheels to which these dials are attached act upon each other in an order, determined by the original adjustment. Each dial has on its edges the set of digits from 0 to 9. There are axes upon which the dials revolve; teeth to the wheels behind the dials; bolts which act on or into these teeth; wedges to withdraw the bolts; and shoulders which regulate the action of the bolts on the teeth-wheels; all this determines the process of addition. When it is understood that the skillful Dr. Lardner occupied twenty-five pages in the Edinburgh Review in partially describing the complex action of the machine, and gave up other features as hopeless without a mass of illustrative diagrams, we shall be pardoned for not occupying space by attempting farther description. Harper's Magazine, Vol. XXX. pp. 34-39, gives some account of it, accompanied by a cut. G. and E. Scheutz, Swedish engineers, constructed a working machine, 1837-43, after studying the Babbage machine; it was brought