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NEEDLE (O. Eng. ncedl; the word appea...

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Originally appearing in Volume V19, Page 339 of the 1911 Encyclopedia Britannica.
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NEEDLE (O. Eng. ncedl; the word appears in various forms in See also:Teutonic See also:languages, Ger. Nadel, Dutch naal, the See also:root being ne-, to sew, cf. Ger. nahen, and probably See also:Lat. nere, to spin, Gr. vi)ats, See also:spinning)  , an See also:instrument adapted for passing a See also:thread through fabrics in sewing, consisting of a thin See also:rod of See also:steel, having a pointed end and pierced with a hole or " See also:eye " to carry the thread . The See also:term is also applied to various other See also:objects that more or less resemble a sewing See also:needle in See also:form, though differing in See also:function, such as the magnetized piece of steel that points See also:north and See also:south in the mariner's See also:compass, the pointer or See also:indicator of certain forms of electric See also:telegraph See also:instruments, the slender See also:tube by which the contents of a hypodermic See also:syringe are injected beneath the skin, a See also:sharp-pointed See also:mountain See also:peak or isolated See also:mass of See also:rock, &c . Sewing needles have been in use from prehistoric times . Originally they were made of fishbone, See also:bone or See also:ivory, and their first form was probably a See also:rude See also:bodkin having a See also:hook instead of an eye, though bone needles with an eye, sometimes at the end and sometimes in the See also:middle, have been found in See also:cave de-posits in See also:Great See also:Britain and See also:France and in the Swiss lakes . Bone needles continue to be used by uncivilized tribes, but since the iiscovery of See also:bronze See also:metal needles have been employed in civilized communities . Steel needles were introduced into See also:Europe by the See also:Moors, and it is on See also:record that they were being made at See also:Nuremberg in 137o . In See also:England their manufacture was established about 165o . The centre of the See also:trade in England is See also:Redditch, in See also:Worcestershire, with several other small towns in See also:Warwickshire . Originally the See also:industry was domestic in its See also:character, but it is now carried on in factories where See also:mechanical appliances have to a great extent supplanted handwork . Large quantities of needles are also manufactured on the See also:continent of Europe, See also:Aix-la-Chapelle being an important centre of their See also:production . In the See also:United States See also:ordinary sewing needles are not made, though there is a large output of the See also:special forms used in sewing See also:machines . The raw material of needle-manufacture consists of See also:Sheffield crucible steel See also:drawn down into See also:wire of suitable See also:gauge .

The wire is supplied in coils of definite See also:

weight and See also:diameter, and the first operation is to cut the coils into lengths, each sufficient for two needles . These lengths are next straightened . For this purpose a bundle containing several thousand lengths is packed within two strong See also:iron rings, is heated to red See also:heat, and is then pressed on an iron See also:plate having two parallel grooves in which the iron rings run . Over this plate the bundle is worked backward and forward by the pressure of an oblong slightly curved iron See also:tool having two See also:longitudinal slits through which the edges of the rings project . Thus, by combined pressure and See also:rolling the whole of the lengths quickly become perfectly straight and even . The next operation consists in pointing both ends of the wires . This was formerly done by See also:hand by a grinder who, holding several dozen wires against a grindstone with his See also:left hand and slightly revolving them with his right, was able to point about See also:Ioo,000 needles a See also:day, the number depending, however, to some extent on the See also:size treated . This method, however, is now largely superseded by machinery, which is still more expeditious . The wires are fed out from a hopper to a revolving See also:wheel, on the periphery of which they are held by an See also:india-See also:rubber See also:band . This wheel revolves at ,right angles to a revolving hollow grindstone, and so each wire is brought up to the See also:stone in rapid See also:succession and pointed at one end, the See also:process being repeated for the other end . The next operations are to See also:stamp the grooves which are to be found at the See also:head of a needle and to See also:punch the See also:oval eyes, both being done by automatic machinery . Each wire now forms two needles attached head to head by a broad thin See also:scarf of steel .

The operation of separating there is largely per-formed by machines which pass the See also:

double blanks over the See also:face of an See also:emery wheel, but an older method is to See also:spit them on two flattened wires, clamp them tightly in a See also:frame, See also:file away the scarf and break the blanks in halves, so that two lots of single needles are obtained, each spitted on a wire . The next step, after the heads have been filed smooth, is to harden and See also:temper the needles, which are heated to redness, plunged into See also:cold oil, and then gently heated by being placed on a continuous band passing over a See also:series of See also:gas flames . After the tempering comes the process of scouring, and then the eyes are smoothed and polished so that they will not cut the thread . For this purpose the heads used to be softened by blueing, and the needles strung loosely on wires covered with a See also:paste of emery and oil . These wires were then suspended between uprights on a frame See also:platform to which a jerking See also:motion was communicated; in this way the needles were made to See also:swing on the wires and the See also:gentle See also:friction effected the desired end . Generally, however, the eyes are cleared by the See also:action of a See also:concave wire See also:brush, before the scouring process, and then subsequent burnishing becomes unnecessary . The bodies are next polished by being passed between revolving See also:leather rollers which have also a lateral motion in the direction of their axes . The heads of the finished needles have now to be brought all in one direction . Formerly this was done by a " header," wearing a See also:cloth cap on one of her fingers; this being pressed against a batch of the needles which had previously been arranged parallel to each other, those whose heads were presented to the cloth See also:stuck in it and thus were with-drawn . A more See also:modern See also:device is to See also:roll them down a smooth inclined See also:plane, when the pointed ends, owing to their conical form, travel more slowly than the thicker ends, and thus the needles are all brought See also:round so that they point the same way . They are then sorted according to their lengths, and are done up into packets for the See also:market . Besides ordinary needles for hand sewing, many varieties are made for use in sewing machines, and in their production automatic machinery is largely utilized .

Those used for sewing leather have points of various special forms (twist, See also:

chisel, See also:wedge, See also:diamond, &c.) instead of the round point of the ordinary needle, and sometimes have a hook in See also:place of an eye . See also:Knitting needles are See also:long slender rods, usually of steel but sometimes of bone or other material, having neither hooks nor eyes . Crochet needles are provided with a hook . Hooked needles again are employed in knitting and stockinet machines; having to be periodically closed by the operation of the mechanism the hooks in one type are made flexible so that they canbe pushed down on the shank, while in another the same end is served by providing them with a See also:minute latch . Another special class is constituted by the numerous varieties of needles used by surgeons for suturing wounds, &c . (see SURGICAL INSTRUMENTS) . NEEDLE-See also:GUN (ZUNDNADELGEWEHR), a military See also:breech-loading See also:rifle, famous as the See also:arm of the Prussians in 1866 and of the Germans in 1870-1871 . It was the invention of the gunsmith Johann See also:Nicholas von Dreyse (1787-1867), who, beginning in 1824, had made many experiments, and in 1836 produced the See also:complete needle-gun . From 1841 onwards the new arm was gradually introduced into the Prussian service, and later into the military forces of many other See also:German states . Dreyse was ennobled in 1864 . The See also:principal details of the arm (See also:pattern 1841) are as follows: Breech . See also:Bolt See also:system Calibre .

. •6o7 in . Weight without See also:

bayonet . io lb 4 oz . See also:Charge (See also:black See also:powder) . 74.15 grains See also:Bullet (See also:lead) . 478 grains Muzzle velocity . . See also:low f.s . Sighted to . 800 paces (656 yds.) In practice the needle-gun proved to have numerous defects; its effective range was very See also:short compared to that of the muzzle-loading rifles of the day, and conspicuously so as against the See also:chassepot: the See also:escape of gas at the breech was, moreover, very great . A See also:paper See also:cartridge was used . An improved See also:model, giving greater muzzle velocity and increased See also:speed in loading, was introduced later, but this was soon replaced by the Mauser rifle .

End of Article: NEEDLE (O. Eng. ncedl; the word appears in various forms in Teutonic languages, Ger. Nadel, Dutch naal, the root being ne-, to sew, cf. Ger. nahen, and probably Lat. nere, to spin, Gr. vi)ats, spinning)
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