Swan’s safety electric lamp

From Object Wiki

Swan’s safety electric lamp
Manufacturer	Edison and Swan
Production years	1886
Production location	London

Between 1879 and 1886, over 200 lamps were examined by the Royal Commission on Accidents in Mines, and they form a reserve collection within the Museum's holdings. The report commented on the insecurity of the Davy and Stephenson lamps unless enclosed in a glass shield – many of the lamps tested failed in explosive air currents of over 1000 feet per minute. In glazed lamps the danger of the glass breaking was ever present, and the amount of light they gave was poor. Of the electric lamps tested, Swan's was the only one to give as much as 2–3 times candle power over a period of several hours.

[edit] How it works

[edit] Memories

Do you remember miner's lamps? Add your memories.

[edit] In the Science Museum's Records

Inv No: 1888-400