Portable Electric Lighting Plant.
The illustration shown herewith is that of a portable electric light plant. It is mounted upon a frame carried by four wrought-iron traveling wheels, and is fitted with a pole for two bullocks. The boiler stands in the centre, the engine being at one end and the dynamo at the other. The noiler is six feet six inches high by two feet nine inches in diameter; the firebox is crossed by two tubes eight inches in diameter. The engine has a cylinder five inches in diameter by six inches stroke, and is of the inverted type with Pickering governor. By means of a belt it drives the dynamo. This is compound wound to give twenty amperes of current at a pressure of ten volts, when running at 650 revolutions per minute. It supplies four incandescent lamps of 200 candle-power each. Each lamp is provided with a strong enameled iron reflector fitted with a wire guard, and a length of twin flexible cable. The plant, which was constructed by Hayward, Tyler & Co. ol London, England, is designed for use in outdoor work.