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acid action adjustable apparatus applied Assignor atmosphere Bab-el-Oued beam boiler Boston bottom brake Brooklyn cadmium carbon cast iron cent centre chemical affinity City of N. Y. Claim—1st Claim—The arrangement Claim—The combination coal color condensation Conn connexion constructed copper cylinder diameter discharge effect equivalent experiments feet fire flues force Franklin Institute friction furnace glass heat increased John Journal length lever light lime Machines manner set manufacture Mass Massachusetts means mechanical mercury metal motion murexide obtained Ohio operating particles pass patented Penna Pennsylvania Philadelphia piece pipe piston plate platinum present pressure produced pump purpose quantity rollers screw sewer shaft shellac side silicate slide smoke pipe specific gravity spring square inch steam engine stone stroke sulphuric acid superheating surface temperature tion tons tube valve vapor velocity vessel weight wheel wire York zinc
Seite 397 - Table of the corrections for temperature to reduce observations to 32° Fahrenheit for Barometers with brass scales extending from the cistern to the top of the mercurial column.
Seite 23 - Let us now consider, for a little while, how wonderfully we stand upon this world. Here it is we are born, bred, and live, and yet we view these things with an almost 'entire absence of wonder to ourselves respecting the way in which all this happens. So small, indeed, is our wonder, that we are never taken by surprise...
Seite 64 - ... occurred in vertical planes, splitting up the specimen in all directions; cracks were noticed to form some time before the specimen finally gave way ; then these rapidly increased in number, splitting the glass into innumerable irregular prisms of the same height as the cube; finally, these bent or broke, and the pressure, no longer bedded on a firm surface, destroyed the specimen.
Seite 336 - The modulus of the elasticity of any substance is a column of the same substance, capable of producing a pressure on its base which is to the weight causing a certain degree of compression, as the length of the substance is to the diminution of its length.
Seite 141 - The Committee on Science and the Arts constituted by the Franklin Institute of the State of Pennsylvania, for the promotion of the Mechanic Arts, to whom was referred for examination a Solar Compass, invented by WM.
Seite 353 - ... effect. The best way of preparing a solution of minimum strength is as follows : — A concentrated neutral solution of tungstate of soda is diluted with water to 28° Twaddle, and then mixed with three per cent, of phosphate of soda. This solution was found to keep and to answer well ; it has been introduced into Her Majesty's laundry, where it is constuntly being used.
Seite 193 - ... which was retained in the vessel and assisted in purifying the metal. The increase of temperature which the metal underwent, and which seemed so disproportionate to the quantity of carbon and iron consumed, was doubtless owing to the favourable circumstances under which combustion took place.
Seite 270 - By proper mechanical arrangemi-ills this cylinder could be revolved, and the part which was at one instant within, rapidly brought to the outside, and observed by the audience. As the cylinder could be made to revolve 300 times in a second, and as the twentieth part of a revolution was enough to bring a sufficient portion of the cylinder to the outside, it is evident that a phosphorescent effect which would last only the l-3000th or even the l-6000th of a second might be made apparent.