He also built steam-engines, waterpumps, a pontoon bridge in Pressburg (1770), patented a steam turbine for mills (1788/89) and a typewriter for the blind Viennese pianist Maria Theresia von Paradis (1779), and built a theatre house in Buda opened on 25 October 1790 (now Budapest) and the famous fountains at Schönbrunn in Vienna (1780). He was also an artist, wrote poems and epigrams, and composed a "singspiel", "Andromeda and Perseus", performed in Vienna.