The Mechanics' Magazine and Journal of Engineering, Agricultural Machinery, Manufactures and Shipbuilding, 74. köideRobertson, Brooman, & Company, 1861 |
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Page 4
... Davy lamps be employed , be in put on their defence before the tribunal of good order , and never tampered with ... lamp known by many the relatives of the mangled dead . Mr. Brown of them to be unsafe , and of leading the public there and ...
... Davy lamps be employed , be in put on their defence before the tribunal of good order , and never tampered with ... lamp known by many the relatives of the mangled dead . Mr. Brown of them to be unsafe , and of leading the public there and ...
Page 88
... Davy lamp is a per- danger , however , that many minor grievances | lative to the Risca explosion is , however , we may exist before a demand for reform becomes are happy to say , so far exceptional that , up to sufficiently powerful to ...
... Davy lamp is a per- danger , however , that many minor grievances | lative to the Risca explosion is , however , we may exist before a demand for reform becomes are happy to say , so far exceptional that , up to sufficiently powerful to ...
Page 89
... miners in time to come should be sought in better modes of ventila- tion , not in any kind of safety lamp . This much , too , is certain : -Any colliery manage- ment professing to believe in the absolute safety of Davy's lamp , or any other ...
... miners in time to come should be sought in better modes of ventila- tion , not in any kind of safety lamp . This much , too , is certain : -Any colliery manage- ment professing to believe in the absolute safety of Davy's lamp , or any other ...
Page 126
... Davy lamp appears to be in the hands of the fireman who examines the mine before the workmen are allowed to enter , and in the hands of those employed to make ex- ploring and other mines beyond the general face , more especially in the ...
... Davy lamp appears to be in the hands of the fireman who examines the mine before the workmen are allowed to enter , and in the hands of those employed to make ex- ploring and other mines beyond the general face , more especially in the ...
Page 131
... Davy and George Stephen- son in regard to their safety lamps , and was hard on the poor man at the time , though Smiles , in his life of George Stephenson , has clearly shown that his lamp had been tried before Sir Humphrey proposed his ...
... Davy and George Stephen- son in regard to their safety lamps , and was hard on the poor man at the time , though Smiles , in his life of George Stephenson , has clearly shown that his lamp had been tried before Sir Humphrey proposed his ...
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Common terms and phrases
acid action applied Armstrong gun arrangement axle boat boiler bolt bottom breech cable carriages carried cause centre chamber coal colour communication connected consists construction cylinder Dated Aug Dated Jan Dated July Dated June Davy lamp effect electric telegraph employed engine fabrics feet fire fitted fixed frame furnace Greenland gutta-percha heat Improvements in machinery inches india-rubber invention inventor iron July 25 June 22 length lever London lower machine manufacture material means MECHANICS ments Messrs metal motion naval naval architects obtained ordinary paper paraffine pass Patent abandoned Patent completed piece pipe piston placed plates portion present pressure produce provements pulley pump purpose quantity rails railway rifled rollers Scott Russell screw shaft ships shot side steam steam engine substances suitable surface telegraph threads tion tons tube valve vertical vessel W. E. Newton weight wheel wire wood
Popular passages
Page 111 - Act incorporated therewith, for the purpose of publishing any bye-law or penalty, or shall obliterate any of the letters or figures thereon, he shall forfeit for every such offence a sum not exceeding five pounds, and shall defray the expenses attending the restoration of such board.
Page 60 - ... glass vessel, and steam was made to pass through it until it ceased to be condensed, and the water in the glass vessel was become nearly boiling hot. The water in the glass vessel was then found to have gained an addition of about one-sixth part from the condensed steam.
Page 184 - The vapor of water is thus made to give up not only its constituent elements to form new compounds with oxygen, producing in the change great heat, but a great part of the heat absorbed by the water in becoming steam is also liberated in this change of its physical and chemical condition. Moreover, as all these products of combustion and of chemical reaction pass together over the bridge-wall of the furnace into a space from which atmospheric air is not excluded, it then...
Page 183 - ... in the history of inventions, that important results are often obtained, of the highest value in promoting material prosperity and the welfare of society, by those who are guided in their search only by the result in view, and not by any exact knowledge of the scientific principles involved. Mr. Thompson seems to have been inspired with the conviction that if he could bring the products from the combustion of wet fuel together in a place, hot enough for the purpose, and from which the atmospheric...
Page 184 - What I claim as my improvement in furnaces for burning bagasse and other fuels too wet to be conveniently burned in the usual way and well known ways, is : " First, the combination of two chambers, the one above the other, and separated by a grate, the lower one for the combustion of any known dry carbonaceous fuel, and the upper one in immediate proximity therewith to receive heat therefrom for heating and drying the charge of wet fuel, with a mixing chamber, into which both continuously and simultaneously...
Page 60 - Being struck with this remarkable fact, and not understanding the reason of it, I mentioned it to my friend Dr. Black, who then explained to me his doctrine of latent heat, which he had taught for some time before this period, (summer...
Page 185 - The products of this distillation react on each other in the mixing chamber in the manner already described, while at the same time a portion of watery vapor is decomposed in the ash-pit. Theoretically no more heat can be generated in this mode of combustion than is consumed in the transformation of water into steam and the conversion of fixed into volatile...
Page 115 - III. chap. 78), which provides that "no action, suit, or process whatever shall be had, maintained or prosecuted against any person in whose house, chamber, stable, barn or other building,, or on whose estate any fire shall . . . accidentally begin nor shall any recompense be made by such person for any damage suffered thereby, any law, usage or custom to the contrary notwithstanding.
Page 164 - The greatest height in 1851 was 160 feet, and the main nave 60 feet high by 72 wide. The greatest height of the new building will be 260 feet, and the nave 85 feet wide and 100 feet high. The total length of the first exhibition building was 1,800 feet by 400 wide. The...
Page 111 - Scotland, one half to His Majesty, his heirs and successors, and the other to any person who shall sue for the same: Provided always, that nothing herein contained shall be construed to extend to subject any person to any penalty in respect of stamping or in any way marking the word " Patent" upon any thing made, for the sole making or vending of which a patent before obtained shall have expired.