Parker (2)
Mr. Parker, of Camberwell, invented an engine in which a mixture of air and steam, instead of steam alone, was used to produce motive power (known as the Aero-Steam engine).
1870 'The engine which we examined stands in the yard of Messrs. Yarrow and Hedley, Isle of Dogs, and is driven by one of the small boilers used by the firm in propelling the steam launches.' 'Careful experiments made by Mr. Parker during the last six years'.[1]
1870 Monitored demonstration of the engine at the boiler works of C. J. Spencer of Staple Street, Bermondsey. Mr. Parker the present owner of the patents taken out some years ago by his brother.[2]
1871 Mr Parker had died; Mr. Parker's brother took up the matter after the death of the inventor and, during 1870, he promoted the invention energetically.[3]
Later statement says tests were over two days at Powis, James and Co[4]