The London journal of arts and sciences (and repertory of patent inventions) [afterw.] Newton's London journal of arts and sciences, Volume 7William Newton 1858 |
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acid action application arrangement bear date boiler cable caisson carbon carriages centre Charles coal coke communication connected construction cutter cylinder described diameter disc drawing rollers Edward Edward Newton electric telegraph employed engine excentric fabrics feet fixed frame furnace fusible plugs gauge gear George gutta-percha heat Henry Henry Bessemer improvements in apparatus improvements in machinery inches invention consists iron James John John Henry Johnson Lancashire lever loom machine machinery or apparatus Manchester mandril manner manufacture material means ments metal mode motion murexide Newton obtained Office for Patents ordinary paper pass patentee claims pipe piston placed plates plough present provements pulley purpose quantity rails railway ratchet-wheel ratus Richard Archibald rollers screw shaft shewn shews side slide specific gravity spindle steam steel suitable surface telegraph Thomas tons tube upper valve vertical vessel weft weight wheels William William Clark wire wood
Popular passages
Page 167 - ... deep water, say two miles or more, in such a way as not to require a length much greater than that of the actual distance, as from the inclined direction of the yet sinking part of the cable, the successive portions payed out must, when they reach the bottom, arrange themselves in wavy folds, since the actual length is greater than the entire horizontal distance.
Page 174 - I have brought an internal gauge having a cylindrical aperture "5770 inch diameter, and two external gauges or solid cylinders, one being -5769 inch and the other -5770 inch diameter. The latter is 1-10, 000th of an inch larger than the former, and fits tightly in the internal gauge when both are clean and dry; while the smaller -5769 inch gauge is so loose in it as to appear not to fit at all.
Page 175 - ... of an inch is an appreciable and important quantity ; and what is now required is a method which shall express systematically and without confusion a scale applicable to such minute differences and measurements : it should be based on a uniform principle which will accustom the workman to speak of his measures as aggregates of very small differences ; and when a good workman becomes familiar with such sizes as...
Page 171 - ... mark, and land it at 69 feet from the edge of the quay. The crane itself is built on precisely the same principle as a tubular bridge, and may indeed be considered as a curved tubular girder inverted, the top side being the front or concave side of the crane, and the bottom side forming the convex or back part of the structure. Hence it may be described as composed of back plates, side plates, and cell plates. The back plates C, Figs.
Page 169 - ... shoe forming the toe on which the crane revolves. The lower or concave side, which has to resist a force of compression, consists of plates forming three cells and varying in width in the ratio of the strain ; and on the other hand, the convex or top side, which has to bear the pull or tension due to the suspended weight, is formed of long plates connected together by the system of " chain rivetting," first applied in the great tubular bridges in Wales.
Page 174 - ... branches of the mechanical arts, if the decimal system of measures could be generally introduced. To state the case broadly, instead of our engineers and machinists thinking in eighths, sixteenths, and thirtyseconds of an inch, it is desirable that they should think and speak in tenths, hundredths, and thousandths. I can assure those who have been accustomed to the fractional system that the change to the more perfect decimal one is easy of attainment, and, when once made, it will from its usefulness...
Page 238 - ... with a single tube B in the centre of each, 2 inches external diameter and No. 14 wire gauge thickness, of brass and iron respectively. The two boilers were filled with water of the same quality and of the same temperature, and alternately placed upon a stand in the same position over a gas flame C ; they were each exposed to the action of the gas for the same length of time, which was equivalent to the same quantity of fuel being consumed in each case ; and the height of water was carefully...
Page 309 - ... any piston meter previously in use ; it has fewer parts and less wearing surfaces than any other ; it requires no lubrication and has no tumbling weights ; it works smoothly, and without any offensive noise, and is not liable to allow any leakage by the sticking of the cock half over the ports : and under all circumstances this meter has been found to register with a nearer approach to absolute correctness than any other. The writer being engaged in making a series of important experiments for...
Page 45 - Alluding to the attempts which were made to smelt iron with coal or coke, he says. The last effort that was made in this country for making iron with pit coal, was also with raw coal, by one Mr.
Page 108 - ... end of the furrow, the ends of each rope being attached to the plough frame. The anchors adopted in this arrangement consist simply of a cart body filled with earth, mounted on wrought iron discs for wheels, which cut into the land as the cart travels ; the cart being set to travel at right angles to the line of draft of the plough, forms a perfect anchor, easily moved in one direction, but forming a powerful holdfast in the other. Thus in the spring of 1856, at the Paris and Chelmsford agricultural...