Steam Navigation, Its Rise and Progress, with Authentic Tables of the Extent of the Steam Marine of All Parts of the Globe, Contrasted with the Steam Power of the British Empire: Imperfections of the Present System of Steam Navigation, and Symington's Inventions ...A.H. Baily & Company, 1840 - 73 страници |
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Страница 30
... whole volume , if a particular method of condensing the steam is insufficient to absorb , or to annihilate the whole , on the very instant that the piston reverses its action , a portion of it will remain in the cylinder , and , still ...
... whole volume , if a particular method of condensing the steam is insufficient to absorb , or to annihilate the whole , on the very instant that the piston reverses its action , a portion of it will remain in the cylinder , and , still ...
Страница 31
... " A more perfect vacuum must necessarily be obtained by surface , but not in the same time throughout the whole space , and time is power in the Steam Engine . For similar reasons a 27 vacuum by injection will give more real 31.
... " A more perfect vacuum must necessarily be obtained by surface , but not in the same time throughout the whole space , and time is power in the Steam Engine . For similar reasons a 27 vacuum by injection will give more real 31.
Страница 32
... whole , by the medium of the condensing pipes . No part is open to atmospheric pres- sure , consequently no air is admitted with the injection . The little air , when separated from the steam , is expelled through a valve in the top of ...
... whole , by the medium of the condensing pipes . No part is open to atmospheric pres- sure , consequently no air is admitted with the injection . The little air , when separated from the steam , is expelled through a valve in the top of ...
Страница 38
... whole number of accidents , 99 were from explosions , oc- casioning the destruction of 500 persons ; and , among the causes assigned , are " deficiency of water in the boilers , and omission to cleanse them frequently . " In that Report ...
... whole number of accidents , 99 were from explosions , oc- casioning the destruction of 500 persons ; and , among the causes assigned , are " deficiency of water in the boilers , and omission to cleanse them frequently . " In that Report ...
Страница 39
... whole . Experiment confirms it ; for , independent of the incrustation , where the water is thickly saturated with salt , it will not boil under a temperature of 225 ° , instead of 212 ° , a difference of 13 degrees . CHAPTER VI . MR ...
... whole . Experiment confirms it ; for , independent of the incrustation , where the water is thickly saturated with salt , it will not boil under a temperature of 225 ° , instead of 212 ° , a difference of 13 degrees . CHAPTER VI . MR ...
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advantages air-pump America application of steam applied boilers Britain British Empire built Cadwallader Colden cause Charlotte Dundas City of Londonderry claim Clyde condensing the steam considerable crusts cylinder Dalswinton David Napier discovery Dragon employed England estimate evidence experience explosion feet France Fulton genius give heat honour horse power improvements inches incrustation India injection injury inquiry invention inventor of Steam Jonathan Hulls labour machinery magnesia Marquess of Worcester means method of condensing Miller motion muriate nation Navy original paddle paddle-wheel patent perfect period pipes piston practicability present pressure produce PROGRESS OF STEAM proved purpose receiver removed render Report on Steam RISE AND PROGRESS river salt saving in fuel Scotland sea water sea-going steamers steam boat steam engine Steam Marine Steam Navigation Steam Shipping steam to navigation success sufficient supply surface condensation Table talent tion tonnage tons trial vacuum voyage Watt Watt's wheels whilst William Symington wind writer وو وو
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Страница 78 - He had infinite quickness of apprehension, a prodigious memory, and a certain rectifying and methodising power of understanding, which extracted something precious out of all that was presented to it. His stores of miscellaneous knowledge were immense, — and yet less astonishing than the command he had at all times over them.
Страница 127 - The boat was again put in motion. She continued to move on. All were still incredulous. None seemed willing to trust the evidence of their own senses. We left the fair city of New York ; we passed through the romantic and ever-varying scenery of the Highlands ; we descried the clustering houses of Albany ; we reached its shores...
Страница 81 - THOSE WHO BEST DESERVE THEIR GRATITUDE, THE KING HIS MINISTERS, AND MANY OF THE NOBLES AND COMMONERS OF THE REALM RAISED THIS MONUMENT TO JAMES WATT, WHO DIRECTING THE FORCE OF AN ORIGINAL GENIUS, EARLY EXERCISED IN PHILOSOPHIC RESEARCH TO THE IMPROVEMENT OF THE...
Страница 78 - ... the conversation, he rarely suggested the topics on which it was to turn, but readily and quietly took up whatever was presented by those around...
Страница 126 - As I had occasion to pass daily to and from the building yard, while my boat was in progress, I have often loitered unknown near the idle groups of strangers, gathering in little circles, and heard various inquiries as to the object of this new vehicle. The language was uniformly that of scorn, or sneer, or ridicule.
Страница 78 - Independently of his great attainments in mechanics, Mr. Watt was an extraordinary, and, in many respects, a wonderful man. Perhaps no individual in his age possessed so much and such varied and exact information, had read so much, or remembered what he had read so accurately and well. He had infinite quickness of apprehension, a prodigious memory, and a certain rectifying and methodising power of understanding, which extracted something precious out of all that was presented to it.
Страница 126 - They were silent, and sad, and weary. I read in their looks nothing but disaster, and almost repented of my efforts. — The signal was given, and the boat moved on a short distance, and then stopped, and became immoveable.
Страница 77 - ... the old man had studied political economy and belles-lettres all his life, — of science it is unnecessary to speak, it was his own distinguished walk. And yet, Captain Clutterbuck, when he spoke with your countryman Jedediah Cleishbotham, you would have sworn he had been coeval with Claver'se and Burley, with the persecutors and persecuted, and could number every shot the dragoons had fired at the fugitive Covenanters. In fact, we discovered that no novel of the least celebrity escaped his...
Страница 81 - TO HONOUR THOSE WHO BEST DESERVE THEIR GRATITUDE, THE KING HIS MINISTERS, AND MANY OF THE NOBLES AND COMMONERS OF THE REALM RAISED THIS MONUMENT TO JAMES WATT, WHO DIRECTING THE FORCE OF AN ORIGINAL GENIUS, EARLY EXERCISED IN...
Страница 76 - This potent commander of the elements — this abridger of time and space — this magician, whose cloudy machinery has produced a change on the world, the effects of which, extraordinary as they are, are perhaps only now beginning to be felt — was not only the most profound man of science, the most successful combiner of powers and calculator of numbers as adapted to practical purposes, — was not only one of the most generally well-informed, — but one of the best and kindest of human beings.