London Journal of Arts, Sciences and Manufacturers, and Repertory of Patent Inventions, Volume 27William Newton, Charles Frederick Partington W. Newton, 1846 |
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acid alumina ammonia application arrangement atmospheric railway attached bars boiler carbonate carbonic acid carriages centre coal gas coloring matter combination conj connected construction cork county of Middlesex cylinder Dalkey December-6 months described diameter dyeing elastic employed engines fabric feet flue frame furnace Gent gutta-percha heat improvements in machinery inches India-rubber Inrolment Office invention consists iron JOHN RENNIE July-6 months lever lime locomotive London machine machinery or apparatus madder manner manufacture means ments metal Middlesex mode months for inrolment mordant motion moulds nitric acid November-6 months obtained October-6 months operation ordinary palm oil paper passes patentee claims pieces pinions pipe piston placed plate portion potash produced purpose quantity ratchet-wheel revolving rollers screw Sealed 10th shaft sheet shew side soap steam stearine substances sulphuric acid surface temperature threads tion tube upper valve vertical vessel weft wheel William XXVII
Popular passages
Page 222 - ... the sole working or making of any manner of new manufactures, within this realm, to the true and first inventor and inventors of such manufactures, which others, at the time of making such letters patent and grant, shall not use...
Page 184 - ... by wires with the extremities of an active battery, oxygen is disengaged at the positive electrode, and hydrogen at the negative, in the proportion of one measure of the former to two of the latter nearly.
Page 445 - ... to 1. Particular attention is due to experiments Nos. 5, 6, and 7. Reasoning upon the assumption, that the effort of the entering edge of each blade must cause the water to recede, and that each succeeding portion of blade should so increase in pitch as to impinge with uniform force against the water, which was so receding, a screw of this description was made and tried before it was discovered that it was the subject of a patent by Mr. Woodcroft.
Page 272 - ... some degree been omitted in the preceding Report. In treating of the quantity of air entering into combination with the volatile products of pit coal, Mr. Murray states, that " The quantity of air chemically required for the combustion of 1 Ib. of coal has been shown to be 150-35 cubic feet, of which 44-64 enter into combination with the gases, and 105 '71 with the solid portion of the coal.
Page 443 - ... be sustained in one compartment only, it may absolutely preserve a vessel from sinking ; several instances of this have already occurred, and even where it may not suffice for this purpose, it at least separates the leaky and injured from the secure parts, and gives time either to attempt to stop the leak, or to make other preparations. In iron vessels, these bulkheads can be rendered much more effectual, than in wooden ones, by their exact contact with the bottom and sides, while at the same...
Page 272 - This area having been obtained, on the supposition that no more air is admitted than the quantity chemically required, and that the combustion is complete and perfect in the furnace, it is evident, that this area must be much increased in practice, where we know these conditions are not fulfilled, but that a large surplus quantity of air is always admitted. A limit is thus found for the area over the bridge, or the area of the flue immediately behind the furnace, below which it must not be decreased,...
Page 258 - I would here state, that although the manures made in carrying out this invention will have Various matters combined with the alkaline carbonates, no claim of invention is made thereto separately, and such materials will be varied according to the matters which the land to be manured requires to have returned to it, in addition to the mineral substances above mentioned. The quantity of carbonate or phosphate of lime, used with carbonate of soda or potash, may be varied according to the degree of...
Page 454 - The screw-propeller was more easily disconnected from the engines than the paddle-wheels, should it be required to save fuel, or if the engines were disabled, — and the ship being properly rigged, a decidedly efficient sailing ship still remained, which in a paddle-wheel ship was not possible. The screw propeller was less liable to be damaged by heavy seas, or by shot, than paddle-wheels. Very recently, the West India Royal Mail Steam-packet
Page 34 - ... is used, the incrustation is generally promoted by the carbonate of lime set free by the heat, which, as it floats in the water previous to subsiding, forms a nucleus for the gathering of other matter, and disposes the saline compounds, such as the sulphate of magnesia, chloride of sodium, &c., to crystallize and precipitate much sooner than they otherwise would.
Page 449 - Great Britain" was commenced, the city of Bristol had taken up the subject of widening the dock-gates of the port, with other improvements, so warmly, that no doubt was entertained that, before she should be completed, there would be no difficulty in her going out ; accordingly she was designed 5 feet 6 inches wider than the existing locks. Various causes led to the abandonment, for a time, of these improvements, and the ship, when ready for sea, was not only discovered to be a prisoner, but likely...