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Posted inMarine steam engine
Quadruple expansion engines.
In many cases in the mercantile marine the stage expansion principle is carried still further,…
Posted inMarine steam engine
Triple expansion engines.
With initial steam pressures above 100 lbs. per square inch, the variation of temperature in…
Posted inMarine steam engine
Vertical (compound) engines.
The vertical type of engine, with cylinders at the top and crank-shaft below, was adopted…
Posted inMarine steam engine
Early screw engines.
The majority of steamers, both war and mercantile, built during the years 1850-60, were fitted…
Posted inMarine steam engine
Return connecting-rod engines.
This kind of engine was adopted by the majority of marine engineering firms to enable…
Posted inMarine steam engine
Gearing for screw engines and its abandonment
In order to attain the same speed of ship the screw propeller had to be…
Posted inMarine steam engine
Defects of paddle-wheels
The paddle-wheel possessed many practical disadvantages which interfered with progress beyond a certain point. Its…
Posted inMarine steam engine
Abandonment of side-lever engines
Attempts were soon made to reduce the space required by the machinery, and the side-levers…
Posted inMarine steam engine
Introduction of steam war vessels
Steam vessels were introduced into the Royal Navy in the year 1820, when the 'Monkey,'…
Posted inMarine steam engine
Side-lever engine.
The propeller used in the earlier steamships was invariably the paddle-wheel, and the type of…