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Knight's Mechanical Encyclopedia (ed. Knight), A. (search)
nd to end of the fold, or directly between the distant points of puncturation. Al′lege. （French) A ballast-boat. Al-lette′. （Architecture.) A wing of a building; a buttress or pilastermuth.Cadmium.Melting-point. Rose's112201° F. Newton's538212 Newton's (another formula)325199 French1548 Wood's131210 Wood's671180 Wood's Patent (March 20, 1860）427 – 81 – 2150 – 160 Wood's Patr identical pressure, occupies a space only 303 times greater than water. — Annals of Chemistry (French). Ammoniacal gas, which is an incidental and abundant product in certain manufactures, espe (little throat); it is heated by a furnace along the side, called a tisar. The nomenclature is French, and indicates the source whence the manufacture was derived. An-neal′ing Color. The colorr covering:Peters,1862. Hardy,1869.Selden and Kidd,1865. Murphy,1870.Spencer,1868. Riley,1871.French,1869. Murfey,1870. 7. For forming a radiating surface, as in gasstoves, fire-
Knight's Mechanical Encyclopedia (ed. Knight), B. (search)
ute division to enable the water to dissolve out the tannin more readily and perfectly. Farcot's Bark-cutting Machine (French) is shown in side elevation and plan. A A′ are two fluted cylinders which supply the bark previously spread upon the tabg and building blocks. Ba-sane′. （Leather.) French tanned sheep-skins for bookbinding. Bawsin. Bascule. （French: see-saw.) A form of bailing-scoop used by Perronet at the Bridge of Orleans was worked by 20 men, 10 at each end. 600 moried with some degree of success. The first notice we find of the making of beet-root sugar was in 1747. Achard's (French) process made the manufacture a success in 1799. Napoleon encouraged it when the English cruisers destroyed the commernts are all wrought in tine gold thread. The next in date in the same collection is a description of the Holy Land, in French, written in Henry VII.'s time. It is bound in rich maroon velvet, with the royal arms, the garter, and motto embroidere
Knight's Mechanical Encyclopedia (ed. Knight), C. (search)
them about the same time. The English (at Crecy, 1346), the Moors, Arragonese, French, and Danes, used them during that century. Metallic cannon were originally ms, English elongated iron projectiles. t, 68-pound ball (1841). u, Liege, French, 1,000-pound ball (1832). v, Beelzebub and Puritan, American, 1,100-pound bay Sir Samuel Morland about 1661. In a simpler form it was used by the English, French, and Spanish in the fifteenth century. The capstan differs from the windlass glass frame opening on hinges and revolving upon one of the vertical edges. A French window. Case—pa′per. The outside quires of a ream. Case—shot. Case-aded nail, used for securing clouts on axle-trees or elsewhere. Clove. （French Clou.) A long spikenail. Clove-hitch. （Nautical.) Two half-hitches. A eiving and depositing the stones respectively. Cranes. Peronnet's crane, French, (g, Fig. 1506,) was used by him in constructing the bridge of Neuilly. It
Knight's Mechanical Encyclopedia (ed. Knight), D. (search)
cut in sections and driven like pins into the hubs of calico-rollers, forming the dots, leaves, etc., of patterns. For fine work, such as the drawing of gold and silver wire, the draw-hole is made of a drilled ruby. The wire for pendulum-springs of watches is drawn through a pair of flat rubies with rounded edges. Tubes for telescopes are drawn upon a mandrel. Gun-barrels, boiler and condenser tubes, leadpipe, slips for music-type, window-lead, etc., are also drawn, or may be. French draw-plates are described as being made by the following process:— A piece of wrought-iron is prepared 1 inch thick, 2 broad, and 12 long. This is furrowed on one side by the peen of a hammer, so as to receive a layer of partially decarburetted cast-iron, called potin. This potin is made by breaking up pieces of a new iron pot, fusing them again and again with charcoal, and quenching in water. The iron partially comes to nature, assuming the condition of steel, and is eventually melted
Knight's Mechanical Encyclopedia (ed. Knight), E. (search)
when rapidly rotated causing flashing rays of light, forming singular combinations to appear upon the screen. Variously colored glass disks may be used, producing striking variations and combinations of color. — Mechanical Magazine, N. S., Vol. XVII. p. 35. Eight-een′--mo. A book whose sheets are folded to form eighteen leaves. Sometimes written octodecimo; and usually indicated 18mo, or 18°. Eight-line Pica. （Printing.) A type whose face has eight times the depth of pica. French, doublecanon. Pease's oil-well ejector. Ejector. Ejector. E-ject′or. 1. A device wherein a body of elastic fluid, such as steam or air, under pressure and in motion is made the means of driving a liquid such as water or oil. The effect of a body of escaping steam in setting liquids in motion was observed longsince, but the most notable instance is the Giffard Injector (see injector), which is used as a feed-water pump for steam-boilers. The ejector acts on a similar principle
Knight's Mechanical Encyclopedia (ed. Knight), G. (search)
flintglass is substantially the same as the ordinary glasscutting, but is of a more delicate character. It is effected by the use of very small disks, generally of copper, and moistened at the edges with emery and oil. Bodier's improvements (French) in glass-engraving were made in 1799. The engraver sits at a small lathe with a little rack before him, containing about a score of the copper disks, varying in size from the diameter of a cent down to one-fiftieth of an inch, each mounted on a the material used in grinding-mills, but its use now is principally for grindstones and whelstones, buhr being used for millstones. Buhr is a foraminous quartz. Gro′gram. （Fabric.) A coarse stuff of silk, or silk and mohair. The name is French (gros-grain, coarse texture). Admiral Vernon, 1750, introduced rum and water as a ration on board ship, and wore a grogram coat. The soubriquet Old Grog referred to the coat, but was afterwards applied to the beverage. Groin. Groin; Gr
Knight's Mechanical Encyclopedia (ed. Knight), H. (search)
ed into France in 1650 (fiacre), and about the same time into England. They are mentioned by Pepys, 1660. The name is French (coche-à--haquenee). Hack-saw. A frame saw of moderate set, tolerably close teeth, and good temper; used in sawing l length of the object-mirror divided by that of the eye-glass. See telescope. Herse. 1. (Fortification.) (From French herse, a harrow.) a. A gate with cross-bars and spiked, and serving to obstruct a passage-way, on occasion. A portcullisAn obtuse angle formed by the meeting of two portions of a roof of different slant, as in the case of a Mansard, curb, or French roof. See Curbroof. A short portion of a roof over a truncated gable, as at a, b. One having a double slope (c), derived from a source at a hight 370 feet above its own level. See Delaunay's Mechanics. Perret's hydraulic engine A (French) has a cylinder and a double-acting piston. The motion is communicated to a working shaft in the ordinary way. The pecul
Knight's Mechanical Encyclopedia (ed. Knight), L. (search)
gold. See gold-beating. 2. Bronze leaf, or Dutch leaf. The qualities are known as, — a. Common; soft, reddish color, composed of zinc 1, copper 3. b. French; harder, less ductile, yellow, larger proportion of zinc. c. Florence; greenish-gold color, still larger proportion of zinc. d. White leaf; tin-foil (which us quality, large size, and free from striae, have been very great, and deserve a passing notice. Sir Isaac Newton declared them insurmountable, and the English, French, and Germans of the last century labored hard at the problem. The Academy of Sciences at Paris offered prizes, and subsequently a commission consisting of Hersched. The performer strikes the string with the fingers of the right hand, and regulates the sounds with those of the left. Simply constructed, it is called the French lute. With two necks, — one for the base notes, — it is called a theorbo. If the strings of the theorbo are doubled, it is called an arch-lute. Ventura's lu<
Knight's Mechanical Encyclopedia (ed. Knight), M. (search)
of a horse. Man-rope. （Nautical.) A rope which forms a substitute for hand-railing at gangways, hatchways, etc. A ladder-rope. Man-ropes are also used at the bowsprit, known as bowsprit-horses. Man′sard-roof. Sometimes called the French or curb roof. First designed by a celebrated French architect, Francois Mansard, who was born in Paris in 1598. He designed many of the public buildings in the reign of Louis Quatorze. It was invented to make the attics available for rooms, th a local distance of 58 inches. This instrument is provided with a circle 30 inches in diameter, divided into arcs of 3′, and reads by four micrometers to single seconds. 2. The altitude circle of a globe. Me-ri′no. （Fabric.) A fine, French, woolen goods, so named as being made of the wool of the merino sheep. It is a lady's dress goods, all wool, and twilled on both sides. The Merino variety of sheep is a native of Spain, which country was celebrated for its wool in the time
Knight's Mechanical Encyclopedia (ed. Knight), N. (search)
n the 100-wheel, and so on, as seen in Watt's registering-machine, gas-meters, arithmometers, and numerous analogous machines and contrivances. The type-wheels were inked by a dabber. The machine had several crude movements, but is interesting as among the first of the automatic shifting instruments for serial indications or work, including the modern numbering and paging machines, calculating-machines and registers, the indicating-apparatus of meters, etc. Trouillet's numbering-machine (French) is adapted either for hand or for use in a press. It consists of an axle containing a number of wheels, having on their perimeters the ten numerals separated by spaces. An instrument with 6 wheels will number from 000,001 to 999,999. The position, after every impact, is changed by means of a small lever that rises alongside of the wooden handle, the immediate change being on the unit-wheel, and that acting upon the 10-wheel as its own numerals become exhausted, and it prepares to comme
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