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1 подающие ролики самонаклада
Polygraphy: feeder rollersУниверсальный русско-английский словарь > подающие ролики самонаклада
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2 Carding Engine
The laps from the scutcher are placed on a roller, which by revolving, causes the lap to unwind. It is then gripped between a dish feeder or plate and a fluted feed roller. The projecting end of the lap is then pulled through by the teeth of the taker in, and (passing over mote knives and bars or grids) is laid on to the cylinder. The object of the mote knives is to take out a quantity of the heavier dirt. The cotton is carried forward on the surface of the wire with which the cylinder is covered, and brought into contact with similar wire on rollers or flats. As these latter travel very slowly and the cylinder revolves at a high surface speed, the cotton is combed between them, and is gradually carried towards the doffer (also covered with wire). The slow surface speed of the doffer strips the cotton from the cylinder, and the doffer in turn is stripped by an oscillating comb. The web from this comb is condensed into silver by passing through a trumpet and a pair of calender rollers and delivered through a coiler. It is afterwards coiled in layers into a card can. The width of the card varies according to the kind of cotton being treated. In common practice for Indian Chinese and the low grade cottons 45 in wide machines are usually adopted for American, 40 in, 41 in wide Egyptian and Sea Islands, 37 in or 38 in wide, with cylinders 50 in diameter, 9 in take-in and doffers 24 in, 26 in, or 27 in diameter. The revolving Flat Card is shown here
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3 Garnett Machine
A machine for opening hard-twisted woollen, worsted, cotton and silk wastes; also for use in succession to the rag-tearing machine in further opening the material and preparing it for the subsequent process of carding. The machines are made ' with one, two, three or more swifts, with self-contained component parts, while the back and front parts of the machine are detachable and can be moved away on rails. The material is fed to the machine either by hand or through an automatic feeder, and after passing between feed rollers is subjected to the first opening process by encountering the teeth or " Garnett " clothing on a licker-in roller. The points of this clothing pass through the material held by the feed rollers, and carry forward any loose fibres liberated from their grip. Continuing its course through the machine the material is carried on to the first large cylinder or swift, which is also covered with " Garnett " clothing, the points of which are keener than those on the licker-in roller. -
4 Napier, David
SUBJECT AREA: Paper and printing[br]b. 1785 Scotlandd. 1873[br]Scottish engineer who devised printing machinery incorporating important improvements.[br]Born in Scotland, Napier moved to London to set up an engineering workshop in St Giles. In 1824 he was commissioned by Thomas Curson Hansard (1776–1833), who from 1803 began printing the debates in the Houses of Parliament, to make a perfecting press, i.e. one that printed on both sides of the paper. Known as the NayPeer, it was the first to incorporate grippers in order to improve register (the correct positioning of the paper on the inked type); the grippers took hold of a sheet of paper as it was fed on to the impression cylinder. Napier made several machines for Hansard, hand-powered at first but steam-powered from 1832. Napier did not patent the Nay-Peer, but in 1828 he took out a patent for a four-feeder press with a single impression cylinder, which had the then-usual "stop and start" action while the bed carrying the inked type passed to and fro beneath it. To speed output, two years later Napier patented a press with two cylinders revolving in the same direction in place of the single-stop cylinder. Also in 1830, the firm of Napier and Son introduced an improved form of bed and platen press, which became the most popular of its kind; one remained in use at Oxford University Press into the twentieth century. Another invention of Napier's, in 1825, was an automatic inking device, with which turning the rounce or mechanism for moving the type bed under the platen activated inking rollers working on the type. Napier is credited with being the first to introduce the printing machine to Ireland, for the Dublin Evening Post. His cylinder machine was the first of its kind in North America, where it was seen by Hoe and others.[br]Further ReadingJ.Moran, 1973, PrintingPresses, London: Faber \& Faber (contains details of Napier's printing machines).LRD
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