The London journal of arts and sciences (and repertory of patent inventions) [afterw.] Newton's London journal of arts and sciences

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William Newton
1846
 

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Seite 375 - I do claim is the before described combination of the railway and wheel with the sliding bar, hand, and lever, arranged and operated in the manner and for the purpose above set forth. " I also claim the setting of the reversible cogged bar, by means of which it can be adjusted to the hand when reversed, or shifted, for cutting different thicknesses of boards in the same log, and thus avoid the necessity of spoiling the first board cut after shifting, or turning, the cogged bar, as described.
Seite 114 - ... cost of it among all the consumers, and to make a proportionally high scale of prices. The fair consumer was thus not only made to pay for his own consumption, but to contribute towards that of his dishonest neighbours. The public therefore has an immediate interest in the exact measurement of gas. But if it be important to the consumers of gas that it should be accurately measured, how much more must it concern the gas companies ! To them the subject is one of extreme interest. It is well known...
Seite 60 - ... of those now used, that they are of the cheapest metal — iron; but, on the contrary, they have usually the disadvantage of not being shaped to the form of the vessel, and of not contributing in any way to the strength of its structure. Saving of First Cost. It appeared from the report of the master shipwright of Deptford Dockyard, on comparing the quantity of timber employed for the Dart...
Seite 58 - Dart,' hawse-holes in the stern, the same as in the bows, to enable them to be brought to anchor in a narrow channel, riding stern foremost. 20. A pre-eminent improvement against foundering, was the water-tight compartments, first introduced in these vessels. That is, the longitudinal and transverse bulkheads, so efficient, as above mentioned, in...
Seite 99 - Vauxhall, gentleman, for improvements in the manufacture of candles, and in apparatus for, and processes of treating fatty and other substances for the making of candles, and other uses.
Seite 177 - This is mixed with a solution of muriate of lime, of 1'200 sp. gr., in the proportion of two parts of the former to one of the latter...
Seite 272 - ... 7. For an improvement in the Rotary Steam Engine ; James Black, Williamsport, Lycoming county, Pennsylvania, March 12. The patentee says, — "My rotary steam engine is of that kind which is usually denominated a re-action engine, as it is made to discharge the steam which is admitted into it from the ends of two or more arms, the discharge orifices at the outer ends of which are in the direction of a tangent to the circle in which they rotate, being in this respect similar to the well-known...
Seite 211 - The drying of the ore, flux and coal, and the expulsion of carbonic acid from the flux, &c., rendering much of the heat latent ; for what was solid is now transformed to the gaseous state. 2. The reduction of the ore, or in other words, the transformation of the solid oxygen of the ore into gaseous oxygen. If the ore has been deprived of its oxygen by the action of carbonic oxide, with the formation of carbonic acid, the heat rendered latent by the oxygen, is compensated for by the heat developed...
Seite 210 - The weight of the ore, flux, and combustible, which enters the furnace, being only one half that of the ascending column, and as the specific heat of these three materials is very much below that of the gas of the ascending mass, it is not the heating of them that explains the necessity of the very great heat of the blast furnace. But the principal cooling causes are, — 1. The drying of the ore, flux, and coal, and the expulsion of carbonic acid from the flux, &c., rendering much of the heat latent...
Seite 374 - I claim the manner in which the bricks are received, compressed, and delivered ; but what I do claim as my invention, and which I desire to secure by letters patent, is the...

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