 | 1818 - 514 стор.
...better flavour is secured to the distilled product. To effect distillation at so low a temperature, the pressure of the atmosphere is removed from the surface of the liquid in the still by an air-pump, E, attached to the top of a close receiver, C, which being worked... | |
 | 1818 - 512 стор.
...better flavour is secured to the distilled product. To effect distillation at so low a temperature, the pressure of the atmosphere is removed from the surface of the liquid in the stilT by an air-pump, E, attached to the top of a close receiver, C, which being worked... | |
 | Colin MacKenzie - 1821 - 724 стор.
...apparatus, distillation is effected at a still lower temperature, (generally about 132°,) because the pressure of the atmosphere is removed from the surface of the liquid in the still by the air-pumpj and, of course, from the regular application of so low a degree... | |
 | Colin Mackenzie - 1822 - 774 стор.
...apparatus, distillation is effected at a still lower temperature, (generally about 138°,) because the pressure of the atmosphere is removed from the surface of the liquid in the still by the air-pump j and, of course, from the regular application of so low a degree... | |
 | 1771 - 414 стор.
...casting. In commencing the operation, the cock q is to be turned, so as to open the communication i, between the metal chest i, and the exhausted air vessel...melting of the metal cap, which cap is to be made of suchj metal and thickness, as will allow it to melt shortly after the immersion of the pipe in the... | |
 | Perry Fairfax Nursey - 1827 - 588 стор.
...of the apparatus is now ready for effecting the casting. In commencing the operation, the cock, c, is to be turned so as to open a communication between...removed from the surface of the metal for the purpose of preventing1 it from rushing up the pipe, /, into the exhausted mould, when the mouth of the pipe opens... | |
 | 1828 - 942 стор.
...casting. In commencing the operation, the cock q is to be turned, so as to open the communication i, between the metal chest i, and the exhausted air vessel...purpose of preventing it from rushing up the pipe f into the exhausted mould, when the mouth of the pipe opens by the melting of the metal cap, which... | |
 | Charles William Eliot, Frank Humphreys Storer - 1868 - 688 стор.
...contains the water under the receiver of on air-pump and pumping out the air from this receiver; as the pressure of the atmosphere is removed from the surface of the water a multitude of bubbles of air will be seen to issue from the pores of the coal. To the presence... | |
 | Charles William Eliot - 1869 - 702 стор.
...contains the water under the receiver of an air-pump and pumping out the air from this receiver ; as the pressure of the atmosphere is removed from the surface of the water a multitude of bubbles of air will be seen to issue from the pores of the coal. To the presence... | |
 | 1874 - 1186 стор.
...so high in the tube as to allow the mercury to have sufficient fall without going out of sight, when the pressure of the atmosphere is removed from the surface of the mercury in the bulb above. It will be seen that either of these arrangements would resist the tendency... | |
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In commencing the operation, the cock q is to be turned, so as to open the communication i, between the metal chest i, and the exhausted air vessel p, by which the pressure of the atmosphere is removed from the surface of the metal, for the purpose of... 