Van Nostrand's Engineering Magazine, Volume 1

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D. Van Nostrand, 1869
 

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Page 445 - I propose to make an improved quality of cast VOL. xV. P steel, by introducing into a crucible, bars of common blistered steel, broken as usual into fragments or mixtures of cast and malleable iron, or malleable iron and carbonaceous matters along with from one to three per cent. of their weight of carburet of manganese...
Page vi - Practical Essays on Subjects connected with Engineering, as, for instance, Metallurgy. For approved Original Communications, the Council will be prepared to award the Premiums arising out of special Funds devoted for the purpose. 1. On the present State of Knowledge as to the Strength of Materials.
Page 67 - After the lapse of five or six minutes, a violent deflagration occurred, attended with a loud roaring noise and a burst of a brilliant yellow flame from the top of the chimney. This lasted for about 1\ minutes, and then subsided as rapidly as it commenced.
Page 184 - PRACTICAL TREATISE ON THE MANUFACTURE OF , PORTLAND CEMENT: By HENRY REID, CE To which is added a Translation of M. A. Lipowitz's Work, describing a new method adopted in Germany of Manufacturing that Cement. By WF REID. Illustrated by plates and wood engravings. 8vo...
Page 341 - ... exactly laid. There are again certain positions where even if the torpedoes are laid they might be disturbed by a violent storm, and possibly an attack on the positions in which they were to serve, might take place before they could be renewed, and though the periods of the year at which these difficulties might arise are short, yet the bare possibility of interference in the application of a complete torpedo system, prevents our placing entire reliance on such a...
Page 68 - I2'6 per cent, of iron in the slag would not be more than 3 per cent, of the iron operated on. '"In conclusion, I have no hesitation in stating that Heaton's process is based upon correct chemical principles : the mode of attaining the result is both simple and rapid. The nitric acid of the nitrate in this operation imparts oxygen to the impurities always present in cast iron, converting them into compounds which combine with the sodium ; and these are removed with the sodium in the slag. This action...
Page 169 - ... wells must gradually grow worse, and in time be unfit for use, as I find has happened in all old cities, I recommend, that at the end of the first hundred years, if not done before, the corporation of the city...
Page 261 - In order to arrive at correct results I have applied to the first houses for the specimens experimented upon, and judging from the results of these experiments, I venture to hope that new and important data have been obtained, which may safely be relied upon in the selection of the material for the different forms of construction. For several years past, attempts have been made to substitute steel for iron, on account of its superior tenacity in the construction of ships, boilers, bridges, &c.
Page 368 - APPLICATION OF THE SLIDE VALVE and Link Motion to Stationary, Portable, Locomotive and Marine Engines, with new and simple methods for proportioning the parts. By WILLIAM S. AUCHINCLOSS, Civil and Mechanical Engineer.
Page 402 - ... engine, its temperature, and that of the discharge, the size of the air-pump and length of its stroke, whether single or double-acting, and, if driven independently of the engine, the number of its strokes per minute, and the height of the barometer. The description of boiler used, the temperature of the feedwater, the consumption of fuel and of water per hour, and whether the boilers, pipes, and engine are protected from loss of heat by radiation ; and if so, to what extent. In addition to these,...

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