Iron: An Illustrated Weekly Journal for Iron and Steel Manufacturers, Metallurgists, Mine Proprietors, Engineers, Shipbuilders, Scientists, Capitalists ..., Volume 2

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Knight and Lacey, 1824 - Industrial arts
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m gl : de droles d'invention en 1824

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Page 229 - An account of experiments for determining the length of the pendulum vibrating seconds in the latitude of London.
Page 116 - Studies serve for delight, for ornament, and for ability. Their chief use for delight, is in privateness and retiring; for ornament, is in discourse; and for ability, is in the judgment and disposition of business...
Page 361 - Observations on a general iron railway, or land steam conveyance, to supersede the necessity of horses in all public vehicles ; showing its vast superiority in every respect over all the present pitiful methods of conveyance by turnpike roads, canals, and coasting traders ; containing every species of information relative to railroads and locomotive engines.
Page 308 - To describe an isosceles triangle, having each of the angles at the base double of the third angle.
Page 330 - If one angle of a parallelogram is a right angle, all the other angles are right angles, and the figure is a rectangle.
Page 132 - I thought it derogatory to my new dignity as a manufacturer, to make dolls' eyes. He took me into a room quite as wide, and perhaps twice the length of this, and we had just room to walk between stacks, from the floor to the ceiling, of parts of dolls. He said, 'These are only the legs and arms; the trunks are below.
Page 326 - ... found in the shops, and is worked with singular facility. Recent sections made with a sharp knife or scissors, when brought together and pressed, adhere so firmly as to resist rupture as strongly as any other part, so that if two sheets be laid together and cut round, the mere act of cutting joins the edges, and a little pressure on them makes a perfect bag of one piece of substance. The adhesion of the substance in those parts where it is not required is entirely prevented by rubbing them with...
Page 369 - ... by blowing the fire it was made to take a few strokes, but required an enormous quantity of injection water, though it was very lightly loaded by the column of water in the pump. It soon occurred...
Page 340 - ... which water might be considered to bear the same relation to so minute a portion of metal as the sea. to the metallic sheeting of a ship. The result of this experiment was the same as that of all the others ; the defended copper underwent no change ; the undefended tarnished, and deposited a green powder. " Small pieces of zinc were soldered to different parts of a large plate of copper, and the whole plunged in...
Page 205 - ... the radicles of barley, produced in the process of malting, which are separated before the malt is sent to market. About a bushel of these is thrown into the boiler, and when the steam is again raised, an immediate effect is visible; for there is not only a plentiful supply of steam to produce the full working speed of the engine, but an excess of it going waste at the safety valve: this singular effect will continue for several days.

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