The London journal of arts and sciences (and repertory of patent inventions) [afterw.] Newton's London journal of arts and sciencesWilliam Newton 1851 |
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acid action affixed alumina ammonia antifriction apparatus applied arrangement axle beam carbonate carbonic acid carries clavier color condenser conj connected consists construction coulter creosote cylinder decoration dibbles discs effect employed engine exhibited fabric feet fixed flax fore end frame franklinite furnace glass hammer heat holes horizontal implement improvements inches instrument invention iron lever lime machine machinery manufacture material matter means Messrs metal months for inrolment motion mould mould-board muriatic acid niello nitric acid octaves operation ordinary organ ornamental oxalic acid oxide pair pass patent pedal pedal clavier piano-forte pipe piston placed plate plough portion potash present produced purpose quantity rollers Sealed seed shaft shew shewn side silicate soda specimens steam stops strings substance suitable sulphur sulphuret sulphuric acid surface tartaric acid temperature thereby tines tion tube upper valve vessel vibrating waggon wheels wood XXXIX zinc
Popular passages
Page 496 - ... himself with a most unnecessary attention, but assume an authority which could safely be trusted, not only to no single person, but to no council or senate whatever, and which would nowhere be so dangerous as in the hands of a man who had folly and presumption enough to fancy himself fit to exercise it.
Page 365 - As he that taketh away a garment in cold weather, and as vinegar upon nitre, so is he that singeth songs to a heavy heart.
Page 517 - For a similar beam, uniformly loaded over its entire length, the strains on the diagonals commenced at the centre, increasing uniformly to the points of support; while the horizontal strains decreased from the centre to the ends, in the ratio of the ordinates of a parabola. These results were arrived at by different methods of reasoning, and the formulae derived from them were stated to be applicable to the more complex form of a closely intersected lattice, taking into consideration the increased...
Page 5 - Oxide of iron would most probably, therefore, enable a manufacturer accustomed to furnace operations to send into the market an arsenical compound of cobalt containing more than 50 per cent, of this metal, even if his interest failed to convince him of the great advantage resulting from its subsequent conversion into zaffre. Thus, then, the conditions of this seemingly difficult problem are answered, in a commercial sense; for oxide of iron is plentiful and cheap, its combination with silica is sufficiently...
Page 252 - O' will, when such a connecting pipe has been applied, furnish the supply cylinder independently of other external communication, and the acting medium will perform a continuous circuit through the machine under this arrangement, the operation being in other respects as before described. It is evident that the several parts composing the improved engine may be arranged in various ways, and that the external form thereof may be greatly changed...
Page 249 - ... the caloric is constantly wasted by being passed into the condenser, or by being carried off into the atmosphere. In the improved engine, the caloric is employed over and over again, enabling me to dispense with the employment of combustibles, excepting for the purpose of...
Page 388 - They overturn all the accounts hitherto given of the earliest state of music and musical instruments in the East, and are, altogether, in their form, ornaments, and compass, an incontestable proof, stronger than a thousand Greek quotations, that geometry, drawing, mechanics, and music were at the greatest perfection when this instrument was made ; and that the period from which we date the invention of these arts was only the beginning of the era of their restoration.
Page 4 - This latter, when carefully roasted in an oxidizing furnace, in contact with sand or ground flint, affords at once an impure silicate of cobalt and arseniuret of nickel — two marketable products. The Cornish ores, from their metallic poverty, will not undergo the first fusion necessary to separate the silicious matrix of the mineral. And this trifling; impediment seems actually to have benumbed the energy of that indomitable spirit of enterprise for which Britain is, in most things, justly celebrated....
Page 168 - Lancaster, manufacturing chemist, for certain improvements in obtaining products from ores and other matters containing metals, and in the preparation and application of such products for the purposes of bleaching, printing, dyeing, and colour making.
Page 177 - Of course, under existing circumstances, this is impossible ; for, as we hare previously remarked, the precise composition of the different clays used in the arts is totally unknown ; and, independent of any chemical difficulties that may be presumed to exist in determining this important fact for themselves, our manufacturers may justly plead that no simple and satisfactory mode of analyzing clay has yet been published. Hence the present empirical system is universal ; and the accidental admixtures...