Travels in space; a history of aerial navigation (1902)
Valentine, E. Seton, Tomlinson, F. L. · London Hurst and Blackett · leaf 258
. The principle of jet propulsion was utilised on animportant scale in the invention of Mr. G. S.Parkinson in 1888. Three great jets of air wereejected from trumpet-shaped mouths situated at thestern and on either side of the balloon. This air wasforced through the mouths bv means of a fan orblower… … A HISTORY OF AERIAL NAVIGATION. 241 a wooden frame-work. The second compartment isattached to the upper surface of the lower one andthe third compartment is situated above the second,shifting its position according to the direction of thewind. A fan or propeller is driven by treadlemechanism, and…
Aeronautics
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