No. 78.
HIGH CANDLE POWER LAMP.
Made by Hailwood & Ackroyd Ltd. Type Hailwood W.B. Improved H..P.
No. 2.
Construction very similar to No. 77 with similar lighting efficiency.
This type of lamp was introduced about 1934 in an effort to increase illumination. The heat which they generated was a great disadvantage and they were shortly displaced by electric cap lamps, which were developed about the same time.
Picture of the Hailwood Lamp
Picture of the Hailwood lighting mechanism
Picture of the Hailwood combustion tube
Statutory Order No. 316 for 1914 details the Hailwood No.1 and No. 1S lamsp
