The Register of Arts, and Journal of Patent Inventions, Volume 2 (Google eBook)

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Luke Herbert
G. Herbert, 1828 - Industrial arts
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Page 303 - Vesuvius was at its height; the columns of steam which usually arise in large quantities when Vesuvius is tranquil, were now scarcely visible; and a piece of paper thrown into the aperture did not rise again; so that there was every reason to suppose the existence of a descending current of air.* The subterraneous thunder heard at such great distances under Vesuvius, is almost a demonstration of the existence of great cavities below filled with aeriform matter; and the same excavations which in the...
Page 37 - ... pale. A second bleaching liquor is now to be added, made by diluting muriatic acid with thrice its bulk of water, and dropping into it pulverized red lead, till the last added portions do not become white. Of this acid bleaching liquor, small quantities at a time are to be added to the...
Page 126 - It is said to be useful also in spasmodic affections of various kinds,, asthma, periodical head-aches, and general irritability ; also as an application to ulcerated and irritable surfaces. The web should be that of the black spider, found in cellars and dark and damp places. Several cases of great professional interest were communicated to the meeting, and...
Page 167 - On the plate cylinder the ink becomes distributed, as before described, and as the plates pass under the inking-rollers they become charged with colour : as the cylinder continues to revolve, the plates come in contact with a sheet of paper in the first paper cylinder, whence it is carried, by means of tapes, to the second paper cylinder, where it receives an impression on its opposite side from the plates on the second plate cylinder, and thus the sheet is perfected. These machines are only applicable...
Page 329 - An Historical Account of Subways in the British Metropolis for the Flow of Pure Water and Gas into the Houses of the Inhabitants, without disturbing the pavements : including the project of 1824-5.
Page 167 - ... the best method of furnishing, distributing, and applying the ink. In order to apply this method to a machine capable of printing from type, it was only necessary to do the same thing in an extended flat surface, or table, which had been done on an extended cylindrical surface; accordingly, I constructed a machine for printing both sides of the sheet from type, securing, by patent, the inking apparatus, and the mode of conveying the sheet from one paper cylinder to the other by moans of drums...
Page 151 - November, 1814, that he held in his hand a newspaper printed by machinery, and by the power of steam. In these machines the type was made to pass under the cylinder, on which was wrapped the sheet of paper, the paper being firmly held to the cylinder by means of tapes ; the ink was placed in a cylindrical box, from which it was forced by...
Page 284 - ... solution of salts of ley, pot or pearl ash, or other alkali, or lime, in the following proportions, viz. To one hundred and fifteen pounds of straw, hay, or other vegetable substance, add from fifteen to twenty pounds of salts of ley, pot or pearl ash, or other alkali, or lime, and boil them about thirty minutes, or steep the materials in the solution a few days, or until saturated ; then draw off the water, and put them into a common engine, to be manufactured into paper like rags. , ... The...
Page 26 - As the Turkey-red dyers are the great consumers of the common soda of commerce, it occurred to me, about four months ago, that they might make their own alkali, by the cheap and simple process of decomposing muriate of soda by pearl-ash, and thus procure a liquor equally pure, without the tedious and expensive operation of bringing the soda to the state of crystal. I pointed out the following plan to a Turkey-red dyer here, wEo immediately put it in practice, and it is now gradually adopting by the...
Page 58 - ... received by the man who turns the winch, and who has time to lay the sheets on one side, and to hand over the tin plates by the time that the boy has prepared a second •packet.

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