Head—light.
(Railway.) The light carried at the front end of a locomotive, to illuminate the way and act as a signal. It has usually an oillamp, whose flame is in the focus of a parabolic reflector. In the example, the lamp is of the Argand variety, air being admitted to the center and around the tubular wick, while the heated air is received from the chimney by a flue above.
Locomotive head-light. |