Newton's London Journal of Arts and Sciences: Being Record of the Progress of Invention as Applied to the Arts..., Band 28

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William Newton, Charles Frederick Partington
W. Newton, 1846
 

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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 370 - What we claim as our invention and desire to secure by letters patent, is the combination of the materials in the general proportions above described, for making an adhesive plaster. "We also claim making plasters porous, or pervious to fluids, by perforating them with numerous minute holes.
Seite 375 - The combination of the levers z with the platen, arranged and operated in the manner and for the purpose above set forth.
Seite 57 - ... that is, of different diameters, in different parts of their length, the greatest at their head, the least at their point, with conical heads engine-turned. These trenails held faster than the usual ones, yet the timbers in which they were inserted were less wounded than by the ordinary trenails. 11. The use of augers for making holes of corresponding exactness with the trenails, so that the holes might be perfectly filled up, to the exclusion of water and moisture. These trenails, so inserted,...
Seite 57 - For giving strength to these vessels several new expedients were introduced, such as — " In the construction of the vessel : 1. Diagonal trusses, or braces of oak, to prevent racking. 2. Fixed bulkheads, longitudinal and transverse, for fixing the bottoms, sides, and decks together. 3. Thick, strong pieces under the ends of the beams, in lieu of knees. 4. Increased thickness of the outer planking, and of the deck. 5. Straight decks fore and aft. 6. Placing the timbers at right angles to the rising...
Seite 56 - It may be added, that other of the improvements introduced, I understand, in the ' Great Britain,' had, as well as the watertight compartments, been half a century ago exemplified in Sir S. Bentham's vessels, such as the tumbling-out of the topsides and the straight decks." " The above-mentioned work, ' Elements and Practise of Naval Architecture,' and Sir S. Bentham's ' Naval Papers,
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 49 - In the recent trial cruise, while rounding the Longships against a heavy head sea, the Rattler did not make good way. The vessel pitched so, that the propeller was frequently more than half its diameter out of the water. On trying the dynamometric effect, it was ascertained that the power was fully expended, but that it was insufficient for the tonnage of the vessel, whose build also was not calculated for speed. In rough weather, with a head wind, the rigging was a serious impediment to speed, but...
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 52 - RENNIE, President, directed attention to a remark made by Sir Charles Napier, as to the relative powers of vessels with screw propellers, and with paddlewheels, for clawing off a lee-shore. Mr. FP SMITH was of opinion, that if a vessel with a screw used her canvas, as well as the propeller, she would claw off quite as well, if not better, than a paddlewheel steamer, as from the heeling of the vessel the lee paddle would thereby lose much of its power. Captain HOSKEN thought...

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