The Mechanic's Magazine, Museum, Register, Journal and Gazette, Volumen41

Robertson, 1844

Comentarios de la gente - Escribir un comentario

Crítica de los usuarios - Marcar como inadecuado

Benjamin Franklin hydroelectric machine?

Otras ediciones - Ver todas

Términos y frases comunes

Pasajes populares

Página 397 - What we claim as our invention, and desire to secure...
Página 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.
Página 397 - What we claim as our invention, and desire to secure by letters patent, is the method of...
Página 402 - 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...
Página 374 - 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...
Página 350 - ... 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...
Página 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.
Página 301 - In this state the picture is to be very thoroughly rinsed and soaked in pure warm water, and then dried. It is then to be well ironed with a smooth iron, heated so as barely not to injure the paper, placing it, for better security against scorching, between smooth clean papers. If, then, the process have been successful, a perfectly black positive picture is at once developed. At first it most commonly happens that the whole picture is sooty or dingy to such a degree that it is condemned as spoiled,...
Página 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.
Página 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 FW SIMMS, M.

Información bibliográfica