The Repertory of arts and manufactures [afterw.] arts, manufactures and agriculture |
Részletek a könyvből
1 - 5 találat összesen 84 találatból.
7. oldal
... less materials and greater ease than the common card wire ; be placed with much greater exact- ness with regard to the carding surface ; and that they can act both behind and before as the system of carding , represented in Fig . 10 ...
... less materials and greater ease than the common card wire ; be placed with much greater exact- ness with regard to the carding surface ; and that they can act both behind and before as the system of carding , represented in Fig . 10 ...
9. oldal
... less twisted come from p ; pass through the feeding cylinders r ; the decomposer a ( having the required velocity ) , and also through the drawing cylinders s to the bobbin t ; the thread will be untwisted , drawn out and re - twisted ...
... less twisted come from p ; pass through the feeding cylinders r ; the decomposer a ( having the required velocity ) , and also through the drawing cylinders s to the bobbin t ; the thread will be untwisted , drawn out and re - twisted ...
17. oldal
... less according to the length of the staple ) round the card A ; and press the cotton or wool softly against it ; and thus equallize the feeding , and save the card from injury by any metallic contact . One or more endless cloths or ...
... less according to the length of the staple ) round the card A ; and press the cotton or wool softly against it ; and thus equallize the feeding , and save the card from injury by any metallic contact . One or more endless cloths or ...
20. oldal
... less convenient . Fig . 34 , shews a different method of placing the cir- cular comb ( h , Fig . 22 ) . If A B be a card ( similar to that B , Fig . 22 ) , the comb , placed as at e , with its axis directed toward that of the card , and ...
... less convenient . Fig . 34 , shews a different method of placing the cir- cular comb ( h , Fig . 22 ) . If A B be a card ( similar to that B , Fig . 22 ) , the comb , placed as at e , with its axis directed toward that of the card , and ...
21. oldal
... so that any wool or other filamentous substance laid on it at D , will be rolled up on entering the cylinder , and there there pinched more or less according to its quantity Thus Hemp , and other filamentous Substances . 21.
... so that any wool or other filamentous substance laid on it at D , will be rolled up on entering the cylinder , and there there pinched more or less according to its quantity Thus Hemp , and other filamentous Substances . 21.
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Más kiadások - Összes megtekintése
Gyakori szavak és kifejezések
acute accent alkali ammonia apparatus appears applied ascertained axis barley barrel barytes basis of potash basis of soda bigg capstan carbonic acid carriage charcoal colour combination combustion common composition decomposed decomposition degree described diameter dickles drawing drying oil employed enrolled equal experiments exposed Fahrenheit fastened fluid frame glass globule grains grave accent heat horses hydrogen improved inches inflammable invention iron leather machine malt manner means mercury metallic method mixed moisture motion muriatic acid naphtha nitric acid oak timber operation oxalic acid oxyds oxygen oxygen gas pallet paper pass pieces placed platina poppy press cylinders pressure prevent produced proportion pulp purpose quantity reel revolving rope round screws seeds shews ship side specific gravity Specification spindle strands strontian substance sufficient surface teeth temperature thereof threads tion tube upper vessel weight wheel wood XIII.-SECOND SERIES
Népszerű szakaszok
361. oldal - Now Know Ye, that in compliance with the said proviso, I, the said Adolphe Nicole, do hereby declare that the nature of my said Invention, and the manner in which the same is to be performed, are...
123. oldal - I ventured to conclude from the general principles on which the phenomena were capable of being explained, that the new methods of investigation promised to lead to a more intimate knowledge than had hitherto been obtained, concerning the true elements of bodies. This conjecture, then sanctioned only by strong analogies, I am now happy to be able to support by some conclusive facts.
187. oldal - Potasium and Sodium are the names by which I have ventured to call the two new substances : and whatever changes of theory, with regard to the composition of bodies, may hereafter take place, these terms can scarcely express an error ; for they may be considered as implying simply the metals produced from potash and soda. I have consulted with many of the most eminent scientific persons in this country, upon the methods of derivation, and the one I have adopted has been the one most generally approved....
126. oldal - ... small globules having a high metallic lustre, and being precisely similar in visible characters to quicksilver, appeared, some of which burnt with explosion and bright flame, as soon as they were formed, and others remained, and were merely tarnished, and finally covered by a white film which formed on their surfaces.
125. oldal - When the order was changed, so that the platina spoon was made negative, a vivid and constant light appeared at the opposite point : there was no effect of inflammation round it; but aeriform globules, which inflamed in the atmosphere, rose through the potash. The platina, as might have been expected, was considerably acted upon ; and in the cases when it had been negative, in the highest degree.
127. oldal - Soda, when acted upon in the same manner as potash, exhibited an analogous result; but the decomposition demanded greater intensity of action in the batteries, or the alkali was required to be in much thinner and smaller pieces.
126. oldal - Under these circumstances a vivid action was soon observed to take place. The potash began to fuse at both its points of electrization. There was a violent effervescence at the upper surface ; at the lower, or negative surface, there was no liberation of elastic fluid ; but small globules having a high metallic lustre, and being precisely similar in visible characters to quicksilver, appeared, some of which burnt with explosion and bright flame as soon as they were formed...
262. oldal - Paper, are founded upon observations made, during the present winter, at the cotton manufactory of Messrs. PHILIPS and LEE at Manchester, where the light obtained by the combustion of the...
90. oldal - ... water. When the painting is finished, put some white wax into a glazed earthen vessel over a slow fire, and when melted, but not boiling, with a hard brush cover the painting with the wax, and when cold...
410. oldal - Next, let four grains of the same carbonate be exposed for a short time to a red heat ; and it will be found to have parted with exactly half its gas ; for the gas extricated from it in the same apparatus will be found to occupy exactly the same space, as the quantity before obtained from two grains of fully saturated carbonate. Sub-carbonate of Soda. Exp. 2. A similar experiment may be made...