London Journal of Arts and Sceinces: And Repertory of Patent Inventions, Volumen4William Newton, Charles Frederick Partington W. Newton, 1822 |
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Página 2
... be choaked by the wind . The heat emitted from the grate with a small fire will be found sufficient for cook- ing with tolerable expedition : that is to roast in front , to bake behind , and , at the same time Recent Patents .
... be choaked by the wind . The heat emitted from the grate with a small fire will be found sufficient for cook- ing with tolerable expedition : that is to roast in front , to bake behind , and , at the same time Recent Patents .
Página 3
... heat may be regulated by shutters . A box jack is shewn in fig . 2 , to which the spit may be attached , so as to keep the meat turning . There are about ten sauce - pans and kettles of various sizes suited to different culinary ...
... heat may be regulated by shutters . A box jack is shewn in fig . 2 , to which the spit may be attached , so as to keep the meat turning . There are about ten sauce - pans and kettles of various sizes suited to different culinary ...
Página 8
... heat that must necessarily be applied to that class of furnaces ; and , in consequence , he has adopted a mode of rendering them durable . " Having found , ( he says ) , when such bot- toms or floors are covered in the ordinary way with ...
... heat that must necessarily be applied to that class of furnaces ; and , in consequence , he has adopted a mode of rendering them durable . " Having found , ( he says ) , when such bot- toms or floors are covered in the ordinary way with ...
Página 9
... heat , it answers the purpose of protecting the cast iron bottoms , or floors , from the injurious effects of intense heat better than any substance , or material , hitherto used for the pre- servation of cast iron bottoms or floors ...
... heat , it answers the purpose of protecting the cast iron bottoms , or floors , from the injurious effects of intense heat better than any substance , or material , hitherto used for the pre- servation of cast iron bottoms or floors ...
Página 28
... heat at the same time , and trying the solution , if any with the above tests . d . Alcoholic Infusion . 1. A given weight of the bark , root , & c . coarsely pow- dered , is to be infused into a known quantity of alcohol for a given ...
... heat at the same time , and trying the solution , if any with the above tests . d . Alcoholic Infusion . 1. A given weight of the bark , root , & c . coarsely pow- dered , is to be infused into a known quantity of alcohol for a given ...
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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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Página 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.
Página 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.
Página 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,...
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