Hinks liquid oxygen vaporiser c 1930.

Hinks liquid oxygen vaporiser c 1923.
5 litre flask, complete, for oxygen breathing apparatus. Liquid oxygen was contained in the 5 litre vacuum walled flask. As oxygen evaporated, it built up pressure, and the gas was forced up and through the coil element on top. A tube took it to the airman's mask.
 
Currently on display in:
Flight
Year made :
1930
Inventory number :
1923-1510