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 11
... upper surface of a portion of paving about eight feet square , composed of twelve blocks of stone placed in contact , the edges of which are bevelled at angles alternately , acute or obtuse . to the plane of the upper surface . Fig . 9 ...
... upper surface of a portion of paving about eight feet square , composed of twelve blocks of stone placed in contact , the edges of which are bevelled at angles alternately , acute or obtuse . to the plane of the upper surface . Fig . 9 ...
Side 12
... upper surface at right angles , and to keep the faces of the bevelled sides as perfect as the nature of the stone will permit . When blocks of large dimensions are employed for paving stones , it will be proper to cut grooves at certain ...
... upper surface at right angles , and to keep the faces of the bevelled sides as perfect as the nature of the stone will permit . When blocks of large dimensions are employed for paving stones , it will be proper to cut grooves at certain ...
Side 13
... upper part of the jaws are , what are called , the indexes , d , d , which are pressed tightly together by a spring , shewn at fig . 6 , and intended to be introduced between the perpendicular ribs of the jaws at e . At f , is a thumb ...
... upper part of the jaws are , what are called , the indexes , d , d , which are pressed tightly together by a spring , shewn at fig . 6 , and intended to be introduced between the perpendicular ribs of the jaws at e . At f , is a thumb ...
Side 14
... upper part of the jaws by screws passing through elongated holes , which render them capable of adjustment . The patentee states , that in addition to the index de- scribed in his former patent , which is applicable to what is called ...
... upper part of the jaws by screws passing through elongated holes , which render them capable of adjustment . The patentee states , that in addition to the index de- scribed in his former patent , which is applicable to what is called ...
Side 30
... upper stop - cock taken off , and the syringe alone placed in the upright position shewn at fig . 2. The bladder , h , containing the gases , must then be connected by the screw socket , k , and its stop - cock with the syringe . The ...
... upper stop - cock taken off , and the syringe alone placed in the upright position shewn at fig . 2. The bladder , h , containing the gases , must then be connected by the screw socket , k , and its stop - cock with the syringe . 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...