In 1929 the director, Arno Demmer, sent him to the USA, where he stayed until 1938, working on the New York Central Railroad testing a Kylala blastpipe.
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British Railways 9F locomotive No. 92250 was tested at Rugby with a Giesl ejector which demonstrated its effectiveness but due to imminent dieselisation no other locomotives were so fitted.
Adolph Giesl-Gieslingen: Lokomotiv-Athleten, Geschichte, Leistung und Kurvenlauf der Sechs- und Siebenkuppler, Verlag Slezak, Wien 1995, ISBN 3-85416-171-9.
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