Engraving depicting turbines on the Portrush railway, Ireland. This was the first railway to be powered by hydroelectricity. The electrical work was carried out under the direction of Sir Charles Siemens. Wooden launder feeds water to discharge down near-vertical pipes and turbines which are contained in the spherical iron housings to discharge to waste in the stream below. The power-take-off to is via the two vertical shafts and bevel gearing. The two turbines each produce 50 hp at 225 rpm with a working head of water of 24 ft. Dated 19th century.