A Treatise on Navigation by Steam: Comprising a History of the Steam Engine, and an Essay Towards a System of the Naval Tactics Peculiar to Steam Navigation, as Applicable Both to Commerce and Maritime Warfare; Including a Comparison of Its Advantages as Related to Other Systems in the Circumstances of Speed, Safety and Economy, But More Particularly in that of the National Defence

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Longman, Rees, Orme, Brown, and Green, 1828 - 182 Seiten
 

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Seite 61 - And be it further enacted, that this act shall be deemed and taken to be a public act, and shall be judicially taken notice of as such by all judges, justices, and others, without being specially pleaded.
Seite 58 - An Act to amend an Act of the last Session of Parliament for making temporary Provision for the Government of Lower Canada...
Seite 66 - ... deviating very little from what would be the regular form of a sailing vessel. According to the best authorities the following parts of a vessel of this kind should be increased in actual strength by one-fourth, viz: the keel, stern, apron or inner stern, futtocks, floor timbers, dead-wood, stern-post, transom, inner post, frame timbers, and filling timbers abreast of the engine, as should also the wales, the rudder and the rudder fastenings. The steamer should be provided with sufficient masts...
Seite 44 - To JOHN LEE STEVENS of Plymouth, merchant, for " a new or improved method or methods of Propelling Vessels through or on the water, by the aid of steam or other means or power, and which may also be applied to other purposes.
Seite 17 - It was soon ascertained, that that form of boiler which exposed the greatest quantity of surface to the action of the fire, and did not permit its heat to pass up the chimney until nearly the whole of its power had been exhausted, was the best, and accordingly in some of the boilers constructed under the direction of Mr. Smeaton, the flame and smoke had to pass through a complete labyrinth of channels; but the number of angles and sharp corners that were thus exposed to the action of the fire...
Seite 50 - ... will now depress that piston, the power of which may be transferred to any other purpose. Mr. Trevethic's contrivance however goes much further, and embraces an entire construction of engine in which great simplicity is preserved, and considerable ingenuity displayed. His principal view in its application, as declared in his patent, was that of forming an engine so compact, portable and independent as to be capable of being applied to the moving of carriages on rail roads.
Seite 5 - ... by the pressure of the atmosphere upon the surface of the water in the tank, or siphoned in, as it is termed.
Seite 45 - In 1795, Lord Stanhope constructed a boat to be moved by steam. In 1801 Mr. Symington tried a boat that was propelled by steam on the Forth and Clyde navigation. Still no practical uses resulted from any of these attempts.
Seite 81 - ... they should be allowed a double quantity of beer, or other beverage, while the engine is at work; they should also be relieved every two hours, when employed.

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