Engineering Practice and Educationéditeur inconnu, 1895 - 162 Seiten |
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accomplished ammonia amount of engineering apparatus arrangement beams boilers bridge building built caisson cantilever cantilever bridge carried cars chemical civil engineer coal columns compound locomotive connection consider considerable construction cranes descriptive geometry determine drawing drill dynamometer car economy electric engi engineering course erection experimental experiments feet formulæ foundations furnace greater heat hence hydraulic importance inches Inchgarvie involve iron kinds of engineering labor Lake Fucino large amount large number liable load locomotive machine manual training manufacture mathematics matter means mechanical engineer metallurgical methods mill Moreover necessary needed neering Newcomen engine operated performed pieces pig iron pipes piston plant pounds practice pressure problems proper pulp pump questions railroad rails road rolling scientific principles shafts shops span steam engine steel strength and stiffness strength of materials stresses student suitable surface condenser tank tests tion to-day triple-expansion engine
Beliebte Passagen
Seite 1 - ... the art of directing the great sources of power in nature for the use and convenience of man, as the means of production and of traffic in states.
Seite 50 - I intend in many cases to employ the expansive force of steam to press on the pistons, or whatever may be used instead of them, in the same manner as the pressure of the atmosphere is now employed in common fire-engines.
Seite 50 - I call the steam vessel, must, during the whole time the engine is at work, be kept as hot as the steam that enters it ; first by enclosing it in a case of wood, or any other materials that transmit heat slowly; secondly, by surrounding it with steam or other heated bodies...
Seite 50 - Secondly. In engines that are to be worked wholly or partially by condensation of steam, the steam is to be condensed in vessels distinct from the...
Seite 49 - The quantity of water evaporated in a certain boiler by a pound of coal. "4. The elasticities of steam at various temperatures greater than that of boiling water, and an approximation to the law which it follows at other temperatures. "5. How much water in the form of steam was required every stroke by a small Newcomen engine, with a wooden cylinder 6 inches in diameter and 12 inches stroke.
Seite 50 - Thirdly, whatever air or other elastic vapour is not condensed by the cold of the condenser, and may impede the working of the engine, is to be drawn out of the steam vessels or condensers by means of pumps, wrought by the engines themselves, or otherwise.
Seite 50 - ... it in a case of wood, or any other materials that transmit heat slowly; secondly, by surrounding it with steam or other heated bodies; and, thirdly, by suffering neither water nor any other substance colder than the steam to enter or touch it during that time.
Seite 154 - ... etc., teaching him to carry on his work with accuracy, and to take all proper precautions to avoid error. (2) To give the students...
Seite 102 - I feel convinced that at no period in the history of the profession has it been so important as at the present time. Those who may not be disposed to coincide in my views may at least be led by the description of them to throw new light on a subject which is of vital consequence. We of the passing generation have had to acquire our professional knowledge as we best could, often not until it was wanted for immediate use, generally in haste and precariously, and merely to fulfil the purpose of the...
Seite 50 - In cases where cold water cannot be had in plenty, the engines may be wrought by this force of steam only, by discharging the steam into the open air after it has done its office.