Mechanics' Magazine, Volume 41Knight & Lacey, 1844 |
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Page iii
... quantity of , that enters the fire - places of Cornish engines , 171 Air - propelled locomotives , French , 192 Aitkin's improvements in atmospheric rail- ways , 190 Allen's anti - explosion alarm whistle , 329 Alliott's patent scouring ...
... quantity of , that enters the fire - places of Cornish engines , 171 Air - propelled locomotives , French , 192 Aitkin's improvements in atmospheric rail- ways , 190 Allen's anti - explosion alarm whistle , 329 Alliott's patent scouring ...
Page v
... quantity of air that enters the fire - places of Cornish engines , 171 Hutching's registered improvements in boots and shoes , 78 ; registered blocking ma- chine , 249 Hydraulic mortar , 100 Hydrogen furnace , 281 Hydrostatic break ...
... quantity of air that enters the fire - places of Cornish engines , 171 Hutching's registered improvements in boots and shoes , 78 ; registered blocking ma- chine , 249 Hydraulic mortar , 100 Hydrogen furnace , 281 Hydrostatic break ...
Page 5
... quantity e ( x ) – , or e ' ( x ) is called the curtate mean duration of life ; and the formula shows that , p being given for each age , if the curtate mean dura- tion at any one age be known , that at each younger age may be ...
... quantity e ( x ) – , or e ' ( x ) is called the curtate mean duration of life ; and the formula shows that , p being given for each age , if the curtate mean dura- tion at any one age be known , that at each younger age may be ...
Page 24
... quantity of cold water is admitted to it , and that at a point where it can have but little , if any effect on the temperature of the water at the surface . The boiler is thus always kept more or less filled , and all danger of destruc ...
... quantity of cold water is admitted to it , and that at a point where it can have but little , if any effect on the temperature of the water at the surface . The boiler is thus always kept more or less filled , and all danger of destruc ...
Page 31
... quantity of zink depo- sited would be just one - half of that consumed in the battery , and very nearly the same proportion would obtain in the case of cop- per . Hence , the expense of depositing , compared with the value of the metal ...
... quantity of zink depo- sited would be just one - half of that consumed in the battery , and very nearly the same proportion would obtain in the case of cop- per . Hence , the expense of depositing , compared with the value of the metal ...
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Common terms and phrases
acid ammonia angle apparatus appears applied Archimedean screw atmosphere Atmospheric Railway boats boiler Captain Warner carbonic carbonic acid carriage charcoal Chelsea filter circular segment coal colour construction copper crank cylinder diameter Dublin effect electricity employed engine equal experiments feet filtered water filtering fire flues fluid force friction furnace Galignani garancine given heat hour improvements inches invention iron July length less letters patent light lightning conductor lime liquid London machine madder Magazine manufacture matter means Mechanics ments Messrs metal miles mode motion obtained passed patent pinion pipe piston plane plate present pressure principle produced propeller pumps purpose quantity rack railway rollers ROYAL EXCHANGE sand screw September 12 shaft shell side six months solution speed steam steam-engine substance sulphuric acid supply surface tain temperature tion tube valve ventilation vessel warm weight wheel wire zink
Popular passages
Page 469 - Master will do more Work than both his Hands; and again, Want of Care does us more Damage than Want of Knowledge; and again, Not to oversee Workmen, is to leave them your Purse open. Trusting too much to others...
Page 285 - Sub-Excavating, Timbering, and the Construction of the Brickwork of Tunnels, with the amount of Labour required for, and the Cost of, the various portions of the work. By FREDERICK W.
Page 462 - Now know ye, that, in compliance with the said proviso, I, the said William Francis Fernihough, do hereby declare, that the nature of my said invention, and the manner in which...
Page 434 - Ammonia, too, is capable of undergoing such a multitude of transformations, when in contact with other bodies, that in this respect it is not inferior to water, which possesses the same property in an eminent degree. It possesses properties which we do not find in any other compound of nitrogen ; when pure, it is extremely soluble in water ; it forms soluble compounds with all the acids ; and when in contact with certain other substances, it completely resigns its character as an alkali, and is capable...
Page 397 - What we claim as our invention, and desire to secure...
Page 11 - I have seen the water run like a constant fountain stream forty feet high ; one vessel of water rarefied by fire driveth up forty of cold water. And a man that tends the work is but to turn two cocks, that one vessel of water being consumed, another begins to force and re-fill with cold water, and so successively, the fire being tended and kept constant, which the self-same person may likewise abundantly perform in the interim between the necessity of turning the said cocks.
Page 78 - The diving-boat, in the construction of which he is now employed, will be capacious enough to contain eight men, and provision enough for twenty days, and will be of sufficient strength and power to enable him to plunge one hundred feet under water, if necessary. He has contrived a reservoir of air, which will enable eight men to remain under water eight hours. When the boat is above water it has two sails, and looks just like a common boat ; when she is to dive, the mast and sails are struck.
Page 410 - ... which is but at such a distance. But this way hath no bounder, if the vessels be strong enough ; for I have taken a piece of a whole cannon, whereof the end was burst, and filled it...
Page 320 - A table spoonful of pulverised alum sprinkled into a hogshead of water (the water stirred at the time) will, after the lapse of a few hours, by precipitating to the bottom the impure particles, so purify it that it will be found to possess nearly all the freshness and clearness of the finest spring water. A pailful, containing four gallons, may be purified by a single teaspoonful.
Page 103 - Office, against the extension. (3) If her Majesty shall be pleased to refer any such petition to the Judicial Committee of the Privy Council, the said Committee shall proceed to consider the same, and the petitioner and any person who has entered a caveat shall be entitled to be heard by -himself or by counsel on the petition.