George Warsop

George Warsop and Co
Warsop's plan for an aero-steam engine involved injection into the boiler of a small amount of air, that had been previously passed through a heater, in order to increase the efficiency of the steam engine.[1]
1871 'The International Exhibition of 1871, South Kensington: 'In the south-west gallery are the scientific inventions, the motive power being obtained from 8 Warsop-aero-steam engine, specially manufactured for the purpose by Messrs. Easton, Amos, and Co., which works on the principle of the continuous injection of heated air into the bottom of the boiler.'[2]