The Engineer's and Mechanic's Encyclopædia: Comprehending Practical Illustrations of the Machinery and Processes Employed in Every Description of Manufacuture of the British Empire, Volume 1Kelly, 1835 |
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Página 8
... matter of the wood is dissipated in incondensible gases . The crude pyroligneous acid is rectified by a second distillation in a copper still , in the body of which about 20 gallons of viscid tarry matter are left from every 100 . It ...
... matter of the wood is dissipated in incondensible gases . The crude pyroligneous acid is rectified by a second distillation in a copper still , in the body of which about 20 gallons of viscid tarry matter are left from every 100 . It ...
Página 12
... matter , he could only separate them by sliding them edgeways . With respect to the second - mentioned kind of adhesion , some useful experiments were made by Mr. B. Bevan , on the adhesive force of iron nails , screws , and pins ; also ...
... matter , he could only separate them by sliding them edgeways . With respect to the second - mentioned kind of adhesion , some useful experiments were made by Mr. B. Bevan , on the adhesive force of iron nails , screws , and pins ; also ...
Página 21
... matter will improve it ; if vegetable matter be in excess , liming , or paring and burning , will be advantageous . The excellent rules laid down by Sir Humphrey Davy , in his Agricultural Chemistry , are particularly deserving of ...
... matter will improve it ; if vegetable matter be in excess , liming , or paring and burning , will be advantageous . The excellent rules laid down by Sir Humphrey Davy , in his Agricultural Chemistry , are particularly deserving of ...
Página 22
... matter , and 4 in water , and exhibited indications of a small quantity of phosphate of lime . This soil was of a very fine texture , and contained very few stones and vegetable fibres . It is not unlikely that its fertility was in some ...
... matter , and 4 in water , and exhibited indications of a small quantity of phosphate of lime . This soil was of a very fine texture , and contained very few stones and vegetable fibres . It is not unlikely that its fertility was in some ...
Página 56
... matters , contain it in great abundance . It is also found in many vegetables , more particularly in those which ... matter . According to the best analysis , it is composed of 1000 Carbon . Oxygen Hydrogen Nitrogen 52.883 • 23.872 ...
... matters , contain it in great abundance . It is also found in many vegetables , more particularly in those which ... matter . According to the best analysis , it is composed of 1000 Carbon . Oxygen Hydrogen Nitrogen 52.883 • 23.872 ...
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The Engineer's and Mechanic's Encyclopædia: Comprehending Practical ... Luke Hebert Visualização integral - 1848 |
Palavras e frases frequentes
acid alkali ammonia angle antimony aperture apparatus applied attached axis barrel body boiler boiling bottom brass called carbonic acid carriage cast iron centre charcoal chlorine cistern coal cock colour condensed consists construction containing copper cupel cylinder diameter distillation effect employed engine engraving equal feet fire fixed flue fluid force frame fuel furnace glass groove heat hole horizontal inches inclined plane instrument invention iron length lever liquid liquor lower machine matter means melted mercury metal motion mould mould boxes muriatic acid nitric acid obtained operation passing patent piece pipe piston placed plate portion potash pressure produced proportion pulley purpose quantity represents rollers round screw shaft side sliding specific gravity spermaceti steam substance sufficient sulphuric sulphuric acid surface temperature thickness tube turned upper usually valve vapour velocity vessel weight wheel wood zinc
Passagens conhecidas
Página 472 - Air is a mixture of two gases, — oxygen and nitrogen, — in the proportion of one part of the former to four of the latter. Oxygen is the active gas, the feeding and warming gas, the life-giving principle of nature. It has been well named "the great supporter of animal life.
Página 361 - When pieces of charcoal about an inch long and onesixth of an inch in diameter, were brought near each other (within the thirtieth or fortieth part of an inch) a bright spark was produced, and more than half the volume of the charcoal became ignited to whiteness, and by withdrawing the points from each other a constant discharge took place through the heated air, in a space equal at least to four inches, producing a most brilliant ascending arch of light, broad, and conical in form in the middle.
Página 570 - Commons was appointed in 1819, "to inquire how far it might be practicable to compel persons using steam engines and furnaces in their different works, to erect them in a manner less prejudicial to public health and comfort, and to report their observations thereupon to the House.
Página 361 - When any substance was introduced into this arch, it instantly became ignited ; platina melted as readily in it as wax in the flame of a common candle ; quartz, the sapphire, magnesia, lime, all entered into fusion...
Página 338 - Multiply the weight of the several particles by the squares of their distances from the centre of motion, and divide the sum of the products by the weight of the whole mass...
Página 429 - DELFT- WARE is a kind of pottery covered with an enamel or white glazing, which gives it the appearance and neatness of porcelain, some kinds of this enamelled pottery...
Página 646 - Now by marking the number of grains of water held by the narrow tube be on a graduated scale attached to it, we can find at once what is the weight of a quantity of water equal in bulk to the solid matter in the sand, and by comparing this with the weight of the sand, we have its true specific gravity.
Página 662 - For this purpose, the work man turns up the edge or brim, to the depth of about an inch and a half, and then returns the point back again through the centre or axis of the cap, so far as not to take out this fold of the same depth.
Página 579 - ... such gallons shall be a bushel, and eight such bushels a quarter of corn or other dry goods, not measured by heaped measure.
Página 335 - ... it cannot easily be seen, with gum mastic, the stone being previously made hot enough to melt it. By the same medium cameos of white enamel or coloured glass are often joined to a real stone as a ground, to produce the appearance of an onyx. Mastic is likewise used to cement false bucks or doublets to stones, to alter their hue.