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Knight's Mechanical Encyclopedia (ed. Knight) 20 0 Browse Search
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planted in the ground to prevent access of cats and other vermin. May be made an architectural feature, but is usually a modest affair, put up for the pleasure of seeing the birds and the satisfaction of affording them comfort and protection. Bird′ing-piece. A fire-arm for killing birds. A shotgun of fowlingpiece (which see). Bird-or′gan. A small barrel-organ, used in teaching birds, especially the bullfinch, to sing. Bird's-mouth. (Carpentry.) The notch at the foot of a rafBird's-mouth. (Carpentry.) The notch at the foot of a rafter where it rests upon and against the plate. Bird's-nest. (Nautical.) A lookout-station at a mast-head for a seaman who watches for whales. Bird-trap. A two-winged flap-net sprung by hand, or a box-trap supported on a figure-of-4, with a trigger to be touched by the bird or sprung by a person on watch. The netting of birds by the former method is well pictured in the ancient Egyptian paintings. Bi′reme. (Nautical.) A two-banked galley. Bir′lin. (Nautic
ngle-tier.Awning. Ante-venno.Badigeon. Apron.Balk. Apron-piece.Baluster. Arched-beam roof.Barge-board. Barge-couple.Corbel. Base.Cornice. Batten.Couples. Bay.Coved-ceiling. Bead.Cradle. Bead and butt work.Crenelated molding. Bead, butt, and square work.Cripple-timbers. Cross-beam. Beaking-joint.Crown-post. Beam.Culver-tail. Bearer.Curb-beam. Bench-vise.Curb-plate. Bent.Curb-roof. Bevel.Curtail-step. Binder.Current. Binding-joist.Cushion-rafter. Binding-rafter.Dado. Bird's-mouth.Dais. Blind.Deadening. Blocking.Deal. Bolection.Dental cut. Bolster.Diagonal. Box-frame.Dimension-lumber. Box-girder.Dished-out. Boxing.Dog-leg stairs. Brace.Dome. Bracket.Door. Breast-summer.Door-case. Bridge-board.Door-step. Bridging-joist.Door-strip. Bridging-piece.Dorman-tree. Brob.Dormer. Brog.Dovetail. Brow-post.Dragon-beam. Built-beam.Draw-bore. Built-rib.Dwarf-rafter. Butment-cheeks.Eave. Button.Eave-board. Cage.Eave-trough. Caisson.Estrade. Camber-beam.
under the supervision of Hooke. Graham, who attained great reputation as an instrument-maker as well as clock-maker, adopted the principle of continuous bisections by means of a beamcompass. In the instruments constructed by him for Halley and Bradley, the are of 60° was divided into 64 parts, making 96° instead of 90° to the quadrant. It was deemed preferable to make the proportionate correction on each angle, rather than to trust to the uncertainty of a division to thirds or fifths. Bird, 1750, subsequently improved the system by constructing scales of equal parts, enabling him to preserve the division of 90° by successive bisections. His manual skill and care procured him merited reputation as a maker of accurate instruments. Ramsden followed with his dividing-engine, 1766, the general principles of which, variously modified and improved by Troughton and others, are still employed in the construction of like instruments. In this, a horizontal wheel, turning on a verti
a removable section of the mattress, etc., etc. In′va-lid—chair. A chair capable of assuming and retaining any required position from the erect to the prone. The figures illustrate the positions, the sustaining devices of the back, seat, leg-piece, and foot-stool being racks and screws. The one illustrated has a capacity for thirty changes. The invalid-chair which has traveling arrangements is known as a perambulator or locomotivechair. In-versor. An instrument invented by Dr. Bird to reverse quickly a voltaic current. In-vert′. 1. An inverted arch. 2. The floor of a canal lock-chamber. It is usually an inverted arch (convexity downward). See canal-lock. In-verted arch. An arch whose crown is downward. The key-stone being the lowest of the voussoirs, and the springings the highest. It is used in foundations, the floors of tunnels, etc. Invalid-chairs. Inverted arch. In-vert′ed Com′mas. A sign of the beginning of a quotation ( ).
Knee-swell. Angelot.Cromorna.Krum-horn. Apollonicon.Crotalo.Kussier. Atabel.Crowle.Lapideon. Autuphon.Crwth.Lute. Bagpipes.Cymbal.Lyre. Balalaika.Decachordon.Mandoline. Bandore.Double-bass.Mandore. Banjo.Double-drum.Manichord. Baritone.Drone.Manual. Barrel-organ.Drum.Maramba. Basset-horn.Dulcimer.Melodeon. Bassette.Echometer.Metronome. Bass-horn.Eolian.Monochord. Bassoon.Fagotto.Mouth-organ. Bass-viol.Fiddle.Musette Bell.Fife.Musical box. Bird-call.Flageolet.Musical glasses. Bird organ.Flute.Naker. Bombard.Flute-organ.Oboe. Bones.French-horn.Octachord. Bow-instrument.Gender.Octave-flute. Bugle.Gong.Ophicleide. Cabinet-organ.Guitar.Orpheon. Call.Guitar-banjo.Organ. Calliope.Hand-organ.Organ-harmonicon. Carillon.Harmonica.Orlo. Castanets.Harmoniphon.Pandean-pipes. Chanter.Harmonium.Pandore. Chime.Harmonometer.Pedal. Chronometer.Harp.Percussion-stop. Cithara.Harpsichord.Piano-forte. Claribella.Hautboy.Piccolo. Clarichord.Hexachord.Pipe. Clarion.Horn.Pipe-
ion is effected by a heated solution or in the electro-bath. It has been applied to many articles, such as gas-tips, barrels, and other metallic portions of fire-arms, sieves exposed to water, culinary vessels, type-facing, buckles, and other hardware, buttons, etc., etc. Kirwan, in 1782, precipitated nickel from its solutions. He says: Zinc precipitates nickel from the marine acid. Iron clearly precipitates nickel from the nitrous acid. (Phil. Trans., Vol. LXXVII. pp. 73 – 84.) Golding Bird in 1837 describes the electro deposition of nickel and other metals by the action of long-continued currents of low tension. (Phil. Trans., Vol. CXXVII. pp. 37 – 45.) Shore, 1840, used a solution of nitrate of nickel in one compartment of battery, and weak sulphuric acid and zinc in the other, for deposition of nickel. An alloy of nickel and tin made by melting under borax and glass was used for coating iron plates by Richardson and Braithwaite, 1840. The alloy was applied melted, <
e. The image of an object reflected from a mirror fixed on a pivoted arm is reflected to the other mirror on a fixed arm, where it is again reflected, and by moving the pivoted arm the image is brought into apparent coincidence with the sea horizon, which is viewed through a part of the fixed mirror left unsilvered for that purpose. The movable limb is provided with a vernier, which indicates the degrees and minutes of elevation on the graduated fixed limb. Gunner's quadrant. Graham, Bird, Ramsden, and Troughton are the great names in the history of this instrument, their celebrity being especially due to their great successive improvements in graduating Instru-ment (which see). 2. An instrument used by gunners for giving a cannon or mortar the angle of elevation necessary to attain the desired range. It has a graduated arc and a plumb-line, which indicates the angle of elevation upon the arc when one arm is placed within the bore or the other against the face of the piece
, Dec. 3, 1850. 10,586.Meyer, Feb. 28, 1854. 56,670.Cutler, July 24, 1866. 37,523.Roberts, Jan. 27, 1863. 24,695.Eaton, July 5, 1859. 125,707.Walker et al., Ap. 16, 1872. 26,172.Eaton, Nov. 22, 1859. 153,447.Meyer, July 28, 1874. 153,448.Meyer, July 28, 1874. 153,449.Meyer, July 28, 1874. 153,450.Meyer, July 28, 1874. Coloring Vulcanite. 99,956.Schlesinger, Feb. 15, 1870.99,885.Halliday, Feb. 15, 1870. Vulcanite Articles. See patents:— No.Name and DatePurpose. 103,416.Bird et al., May 24, 1870Wringer-rolls, etc. 62,106.Albright, February 12, 1867Harness-trimmings. 77,952.Beins, May 19, 1868Car-springs. 140,519.Mayall, July 1, 1873Belting. Restoring Waste Rubber. See patents:— No.Name and Date. 15,998.Forstrick, Oct. 28, 1856. 122,289.Smyser, Dec. 26, 1871. 23,740.Bachnagel, Ap. 19, 1859. 25,160.Hall, August 16, 1859. 30,181.Parmalee, Sep. 25, 1860. 92,764.Tuttle, July 20, 1869. 17,295.Popenhausen et al., May 12, 1857. Vul′can-ite-flask. <
t. Arrow.Cavalot. Artillery.Centrifugal gun. Assegai.Chain-shot. Back-sight.Charge. Back-sword.Charger. Ball.Chassepot-gun. Ball-cartridge.Chassis. Ballista.Chronograph. Ballistic pendulum.Chronoscope. Ball-screw.Cimeter. Bar-shot.Claymore. Battering-ram.Coehorn. Battery.Columbiad. Battery-forge.Combination fuse. Battery-gun.Congreve-rocket. Battery-wagon.Cross-bar shot. Battle-axe.Cross-bow. Bayonet.Cuirass. Bayonet-scabbard frog.Cuisse. Bilbo.Culverin. Bill.Curtal-axe. Bird bolt.Cutlass. Birding-piece.Dagger. Blank cartridge.Dahlgren-gun. Blow-pipe for blow-gun.Dart. Blunderbuss.Dirk. Boarding-pike.Double-barreled gun. Bolas.Double headed shot. Bomb.Enfield rifle. Bombard.Eprouvette. Bomb-chest.Falchion. Bomb for killing whales.Field-gun. Bomb-lance.Fire-arm. Bomb-shell.Fire-ball. Boomerang.Fire-lock. Bow.Fish-gig. Bowie-knife.Flint. Brake.Flint-lock. Breech-loader.Flying-artillery. Breech-sight.Foil. Broadsword.Fowling-piece. Buckshot.Fricti