The Progress of Marine Engineering: From the Time of Watt Until the Present DayTrade Publishing Company, 1893 - 248 էջ |
Այլ խմբագրություններ - View all
The Progress of Marine Engineering: From the Time of Watt Until the Present Day Thomas Main Ամբողջությամբ դիտվող - 1893 |
The Progress of Marine-Engineering, from the Time of Watt Until the Present Day T. Main Դիտել հնարավոր չէ - 2016 |
The Progress of Marine Engineering, from the Time of Watt Until the Present Day T 1818-1885 Main Դիտել հնարավոր չէ - 2016 |
Common terms and phrases
13 knots 9 ft Admiralty Allaire beam engine blower boat Boulton & Watt Brooklyn Navy Yard cent coal per day coal per I. H. P. combustion compound engines connected constructed cut-off valve D. K. Clark deep designed diam diameter direct-acting double ended boilers double-ended fire surface fitted flue boilers four gases gear gines Glasgow grate surface heating surface high-pressure cylinder horse power hot-blast I. H. P. per hour indicated horse-power iron John Elder knots an hour Line Liverpool low-pressure cylinders machinery miles an hour Napier Navy Yard paddle wheels patent piston valves pitch poppet valves pressure 80 lbs pressure cylinder propeller pumps return tubular boilers revo revolutions per minute ship Sickels slide valves smoke pipe speed steam chimneys steam jackets steam pressure 80 steamboat steamers steamship stroke surface condenser tonnage tons coal tons of coal triple-expansion engines tubes twin screw Watt York
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Էջ 2 - ... the neighbourhood of the engines, by application of water or other cold bodies. ' ' 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.
Էջ 2 - 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 steam vessels or cylinders...
Էջ 31 - As in steam vessels and other applications, two conjoined engines are generally employed. The present invention is especially adapted for this purpose, as it presents economic advantages ; as it reduces the expense of the apparatus without increasing its complication. " It is sometimes useful to have between the cylinders an intermediate reservoir to regulate the pressure ; this may be placed •with advantage at the base of the chimney, so as to maintain or raise the temperature and the pressure...
Էջ 2 - 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.
Էջ 2 - ... 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.
Էջ 2 - Fourthly, 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 in which the pressure of the atmosphere is now employed in common fire engines.
Էջ 6 - ... obvious. In these circumstances I thought it better to endeavour to accomplish the same end by other means, than to enter into litigation, and if successful, by demolishing the patent, to lay the matter open to every body.
Էջ 219 - ... atoms will not rebound from it with the same velocity with which they strike, but will return after each succeeding blow, with a velocity continually decreasing as the piston continues to recede, and the length of the vibrations will be diminished. The motion gained by the piston will...
Էջ 97 - Archimedes was tested relatively with that of the mail packets on the Dover station. The result was a highly favourable report to the Admiralty, stating that the success of this new method of propulsion had been completely proved. Immediately after these experiments were concluded, the vessel was placed at the disposal of Captain Chappell who, accompanied by Mr. Smith, performed with her the circumnavigation...
Էջ 218 - ... underfeeding." Mechanical Theory of Heat.— In physics, heat and mechanical force are said to be identical and convertible. Independently of the medium through which heat may be developed into mechanical action the same quantity of heat is resolved into the same quantity of work.