London Journal of Arts and Sceinces: And Repertory of Patent Inventions, Bind 4William Newton, Charles Frederick Partington W. Newton, 1822 |
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Side 5
... common ropes , called the strand ; which round ropes are separately coiled upon distinct reels , as fig . 2. These reels , instead of being mounted so as to turn upon axles or pivots , have wheels fixed at their ends , the periphe- ries ...
... common ropes , called the strand ; which round ropes are separately coiled upon distinct reels , as fig . 2. These reels , instead of being mounted so as to turn upon axles or pivots , have wheels fixed at their ends , the periphe- ries ...
Side 25
... common proportion of men , women , and children , by the spade cultivation , the same land will produce subsistence for more than twelve persons . These are im portant facts . I am , Sir , yours , & c . CATO . Nobel Inventions ...
... common proportion of men , women , and children , by the spade cultivation , the same land will produce subsistence for more than twelve persons . These are im portant facts . I am , Sir , yours , & c . CATO . Nobel Inventions ...
Side 29
... common blow - pipe in skil- ful hands . But when filled with a condensed mixture of oxygen and hodrogen gases in the proportion requisite to * From Berzelius on the Blow - pipe , translated from the French , by J. G. Children . form ...
... common blow - pipe in skil- ful hands . But when filled with a condensed mixture of oxygen and hodrogen gases in the proportion requisite to * From Berzelius on the Blow - pipe , translated from the French , by J. G. Children . form ...
Side 30
... common blow - pipe , disappears before the intense heat produced by this , which levels all bodies to one general class of fusible substances ; though very evident diffe- rences are still observable in the facility with which different ...
... common blow - pipe , disappears before the intense heat produced by this , which levels all bodies to one general class of fusible substances ; though very evident diffe- rences are still observable in the facility with which different ...
Side 41
... common air . Whence it follows , that oxygen , though the principal agent in the process of vegetation , is not yet the only agent necessary to the health and growth of the plant ; aud that the proportion of the constituent parts of the ...
... common air . Whence it follows , that oxygen , though the principal agent in the process of vegetation , is not yet the only agent necessary to the health and growth of the plant ; aud that the proportion of the constituent parts of the ...
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1st Sat 2d Sat acid action advantage alpaco anchor animal annatto apparatus appears applied axle balance spring bars boat boiler bottom carbonic acid carriage chevaux-de-frise colour conj consists construction containing contrivance copper Coppermine River cylinder described Diff drawing rollers eclipsed effect employed engine engraving essential oil experiments feet fixed furnaces heat holes Holyhead improved inches Institution invention iron joints Journal of Arts June labour lamp leeches length lever London machine magnesia manual labour manufacture means ment metal method Middlesex mode months for inrolment muriate observations obtained operation passing patent Perigee piece pipe placed plate present produced proposed purpose quantity reservoir rollers ropes round screw shank shewn side Society specific gravity specification spring steam substance surface tallow temperature timber tion tube upper verdigris vessel vicuna volume wheel wick wrought iron
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Side 36 - London's Encyclopaedia of Agriculture: comprising the Laying-out, Improvement, and Management of Landed Property, and the Cultivation and Economy of the Productions of Agriculture. With 1,100 Woodcuts. 8vo. 21s. London's Encyclopaedia of Gardening: comprising the Theory and Practice of Horticulture, Floriculture, Arboriculture, and Landscape Gardening.
Side 205 - ... of Florence : I perceive that your manner of working, and your designs, are rather those of a sculptor than a goldsmith ; now I have considerable undertakings in bronze, so that if you will go with me to England, I will at once make your fortune.
Side 36 - Improvement, and Management of Landed Property, and the Cultivation and Economy of the Animal and Vegetable Productions of Agriculture, including all the latest Improvements. A general History of Agriculture in all Countries, and a Statistical View of its present State, with suggestions for its future progress in the British Isles.
Side 274 - ... if it make a slight impression, denoting some degree of malleability, the iron is of a good quality, provided it be uniform; if fragments fly off, and no sensible indentation be made, the iron will be hard and brittle.
Side 146 - ... repairs in the machinery ; and should the supply of corn, &c. at any time, fall off, it is not necessary that the labour of the prisoners should be suspended; nor can they be aware of the circumstance. The...
Side 280 - Fifty lithographic prints, illustrative of a tour in France, Switzerland, and Italy, during the years 1819, 20, and 21, from original drawings taken in Italy, the Alps, and the Pyrenees, by MARIANNE COLSTON, in octavo, are preparing for publication.
Side 263 - ... pounds, two hundred and thirty-two feet, in a minute ; and of working, on an average, eight hours per day. This is equivalent to the work of thirty-four men; twenty-five square feet of canvas performing the average work of a day-labourer.
Side 273 - N. down to hit. 69 deg. comprising an extent (reckoning the indentations and sinuosities observed) of about 800 miles ! The coast visited by Captain Scoresby is a continuation towards the North of that on which were planted the ancient colonies from Iceland, the fate of which is still veiled in such deep obscurity.
Side 268 - The poets tell us, that there is a pleasure in poetic pains, which only poets know. So it may, with truth, be said, there is a labour in the historian's researches, which only historians can know: days, nay weeks, are sometimes consumed in ascertaining a date, or verifying a fact. Mr. Partington appears to have spared no pains to render his work what he, doubtless, designed it to be, and which, in truth, it is, a fair epitome of what is known relative to that stupendous machine, the steam-engine,...
Side 157 - Is magnetism identical with electricity, or an independent agent, put into motion or activity by electricity ? Queries of this kind might be considerably multiplied, and stated in more precise and various forms : the solution of them, it must be allowed, is of the highest importance; and though some persons have undertaken to answer them in the most positive manner...