In many cases in the mercantile marine the stage expansion principle is carried still further,…

With initial steam pressures above 100 lbs. per square inch, the variation of temperature in…

The vertical type of engine, with cylinders at the top and crank-shaft below, was adopted…

The majority of steamers, both war and mercantile, built during the years 1850-60, were fitted…

This kind of engine was adopted by the majority of marine engineering firms to enable…

In order to attain the same speed of ship the screw propeller had to be…

The paddle-wheel possessed many practical disadvantages which interfered with progress beyond a certain point. Its…

Attempts were soon made to reduce the space required by the machinery, and the side-levers…

Steam vessels were introduced into the Royal Navy in the year 1820, when the 'Monkey,'…

The propeller used in the earlier steamships was invariably the paddle-wheel, and the type of…