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1 - 5 találat összesen 100 találatból.
27. oldal
... present instance , with a heavy weight on the top of such a high and light tower . The highest iron lighthouse previously erected that he knew of was only 112 feet high , but this was 150 feet high ; and the weight of the lantern and ...
... present instance , with a heavy weight on the top of such a high and light tower . The highest iron lighthouse previously erected that he knew of was only 112 feet high , but this was 150 feet high ; and the weight of the lantern and ...
30. oldal
... present paper , the invention of Mr. Martin Benson of Cincinnati , U.S. , was described at a former meeting of the Institution , in a paper giving the particulars of the application and working of a number of these boilers in America ...
... present paper , the invention of Mr. Martin Benson of Cincinnati , U.S. , was described at a former meeting of the Institution , in a paper giving the particulars of the application and working of a number of these boilers in America ...
32. oldal
... present boiler it has been made 10 inches diameter . The receiver C is supplied with feed water by one of Giffard's injectors L , Fig . 1 , instead of an ordinary feed pump . It was originally supposed that the mechanical circulation of ...
... present boiler it has been made 10 inches diameter . The receiver C is supplied with feed water by one of Giffard's injectors L , Fig . 1 , instead of an ordinary feed pump . It was originally supposed that the mechanical circulation of ...
40. oldal
... present position close to the chimney , the heat passing away into the chimney must be more than 1000 ° , which would produce a great loss of fuel . The tubular construction of boiler , in which the entire heating surface consisted of ...
... present position close to the chimney , the heat passing away into the chimney must be more than 1000 ° , which would produce a great loss of fuel . The tubular construction of boiler , in which the entire heating surface consisted of ...
46. oldal
... present trough , which has been in use nearly three months , is supplied hitherto by a pump , which it may be here mentioned failed once through being frozen up ; but a natural stream of water will shortly be connected to it , giving a ...
... present trough , which has been in use nearly three months , is supplied hitherto by a pump , which it may be here mentioned failed once through being frozen up ; but a natural stream of water will shortly be connected to it , giving a ...
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advantage armour plates Barnsley Birmingham bobbins boiler bolts bore bottom cast iron cast steel cent centre CHAIRMAN enquired chimney coal coke Colliery construction copper cost double cylinder engine durability elevator expansion feet flue Foundry frame fuel furnace girders groove gunstock gutta-percha heat hemp holes horizontal horse power inch thick inches diameter indicator diagrams John Leeds length lighthouse Locomotive London machine machinery Manchester manufacture Messrs metal mode Newcastle-on-Tyne obtained ordinary ovens packing rings paper passed piles pipe piston present Proceedings Inst produced puddling furnaces quantity rails Railway rivets round SAMPSON LLOYD Scale screw Section shaft sheathing Sheffield ship shown in Fig single cylinder small cylinder South Yorkshire spool square inch Staffordshire strands Street strength stroke surface condensers temperature thread tons transverse tubbing tubes Tursdale twist valve vertical Wednesbury weight wheel William wire rope wrought iron yarns Yorkshire
Népszerű szakaszok
97. oldal - Nobody, however, who has paid any attention to the peculiar features of our present era, will doubt for a moment that we are living at a period of most wonderful transition, which tends rapidly to accomplish that great end, to which, indeed, all history points — the realization of the unity of mankind.
245. oldal - I employ the steam after it has acted in the first vessel to operate a second time in the other, by permitting it to expand itself, which I do by connecting the vessels together, and forming proper channels and apertures, whereby the steam shall occasionally go in and out of the said vessels. Thirdly, I condense the steam, by causing it to pass in contact with metallic substances, while water is applied to the opposite side.
97. oldal - ... we are living at a period of most wonderful transition, which tends rapidly to accomplish that great end, to which, indeed, all history points — the realisation of the unity of mankind. Not a unity which breaks down the limits and levels the peculiar characteristics of the different nations of the earth, but rather a unity, the result and product of those very national varieties and antagonistic qualities.
13. oldal - ... meters — pressure of gas, gas exhauster — gas pipes, strength and durability, and construction of joints — proportionate diameter and length of gas mains, and velocity of the passage of gas — experiments on ditto, and on the friction of gas in mains, and loss of pressure.
11. oldal - MILLS, facts relating to construction and working, by stampers, by screw presses, and by hydraulic presses — particulars of crushing rollers and edge stones. COTTON MILLS, information respecting the construction and arrangement of the machinery — power employed, and application of power — cotton presses, mode of construction and working, power employed — improvements in spinning, carding, and winding machinery, &e.
109. oldal - President, in the Chair. The Minutes of the last General Meeting were read and confirmed. The CHAIRMAN announced that the Ballot Papers had been opened by the Committee appointed for the purpose, and the following New Members were duly elected : — MEMBERS.
8. oldal - ... bottoms clean — galvanic action nature, and preventives. ALLOYS OF METALS, facts relating to different alloys. FRICTION OF VARIOUS BODIES, facts relating to friction under ordinary circumstances — facts on increase of friction by reduction of surface in contact — friction of iron, brass, copper, tin.
97. oldal - Gentlemen — the Exhibition of 1851 is to give us a true test and a living picture of the point of development at which the whole of mankind has arrived in this great task, and a new startingpoint from which all nations will be able to direct their further exertions.
15. oldal - Diagrams to be on a large scale and strongly coloured, so as to be clearly visible to the meeting at the time of reading the paper.
139. oldal - ... in this frothy fluid state it presents an enormous surface to the action of the air, which unites rapidly with the carbon contained in the crude iron and produces a most intense combustion, the whole mass being in fact a perfect mixture of metal and fire. The carbon is now burnt off so rapidly as to produce a series of harmless explosions, throwing out the fluid slag in great quantities ; while the combustion of the gases is so perfect that a voluminous white flame rushes from the mouth of the...