Marine Engineer and Motorship Builder, Volume 131892 - Marine engineering |
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1C London 2C L'pool 2C N.Shields A1 at Lloyd's Admiralty armament armour assistant engineer beam boats boilers breadth builders building built by Messrs Captain Cardiff cargo carried Clyde coal constructed cruisers cylinders deadweight deck depth diameter dimensions are:-Length Dockyard electric light firm first-class fitted fleet forced draught forecastle furnaces Glasgow Greenock guns Hartlepool Hawthorns & Co heat highest class hour Hull improvements iron John knots launched Leith length Limited Liverpool Lloyd's Low Walker machinery marine engineering measured mile month moulded named Naval Navy order of Messrs owners passengers patent piston poop port pressure propeller pumps quick-firing revolutions per minute sailing saloon ship shipbuilding South Shields speed square inch steam steering gear steam winches Steamship steel screw steamer stroke Sunderland supplied temperature tonnage tons displacement torpedo trade trial trip triple-expansion engines twin-screw valve vessel Wallsend West Hartlepool whilst windlass yacht
Popular passages
Page 314 - It is impossible by means of inanimate material agency to derive mechanical effect from any portion of matter by cooling it below the temperature of the coldest of the surrounding objects.
Page 43 - William ingeniously and ingenuously remarked, that ' even if the propeller had the power of propelling a vessel, it would be found altogether useless in practice, because the power being applied in the stern it would be absolutely impossible to make the vessel steer.
Page 185 - А ^егу remarkable instance of this is to be found in the case of a large vessel in the Eastern trade, in the boilers of which an oil scum had formed. The ship having to stop some days at Gibraltar, the engineer took the opportunity of blowing out his boilers, and refilling with fresh water, with the result that, before he had been ten hours under steam, the whole of the furnaces had come in.
Page 185 - ... became coated with it. Experiments, however, reveal the actions which had been at work and led to the formation of the deposit, and its absence upon the injured portions of the plates. The pressure at which the boilers were worked was 80 Ibs., corresponding to a temperature of 155° C., or 311° F., which is so far below the boiling point of the valvoline that it was evident that it had not distilled over in the ordinary way, and experiments were made to see if it could be distilled in steam...
Page 184 - ... contained. Taking, for instance, the case of a ship which uses fresh water both for filling and make-up, it is manifest that on her return to port the scale should be very slight and should consist mainly of calcic carbonate ; whilst, if the scale exceeds...
Page 154 - Act, carries as deck cargo, that is to say, in any uncovered space upon deck, or in any covered space not included in the cubical contents ' forming the ship's registered tonnage...
Page 185 - On careful examination of the organic matter and oil present in these deposits, it was found that quite onehalf of it was " valvoline," in an unchanged condition, which had collected round small particles of calcic sulphate. A consideration of these analyses, at first sight, yields no clue as to the cause of the collapse, the scale upon the furnace tops being not...
Page 212 - Ibs. per square inch. We consider steam of this pressure to be well adapted for the exigencies of the service; we believe it is calculated to secure all the important advantages of power...
Page 184 - ... impurities natural to the water itself; but with the introduction of high-pressure steam a new and highly dangerous form of deposit has added to the trouble of the marine engineer. As early as. 1878 the collapse of the furnaces of the boilers of the SS Ban Righ, and a similar misadventure in the screw tug Ich Dien, with no apparent cause to bring about the damage, caused some attention to be paid in marine circles to the action which had taken place, and the only clue to be found was that a certain...
Page 212 - ... and space, in a very eminent degree; these advantages will, in some respects, be slightly increased by augmenting the steam pressure to 10 or 12 Ibs. to the square inch. We strongly recommend that the steam employed in the navy should not be of greater pressure than 10 Ibs. per square inch, or, in extreme cases, 12 Ibs. to the square inch; any material increase to the latter pressure will be attended with considerable risk, without any adequate advantage.