John Joseph Merlin he wheeled about himself, with great facility to any part of the room." At an event held by Teresa Cornelys in Carlisle House, Soho Square, Merlin appeared somewhat disastrously on roller skates of his own invention. By April 1783 Merlin was putting his musical instruments and his automatons on display at his own museum. Advertisements invited readers to visit his Museum of Musical Instruments and Mechanical Inventions at No. 2, Princes Street, Hanover Square, London. Well-off Londoners could meet their friends at Merlin's Mechanical Museum in the afternoon or evening, pay to see the exhibits, and drink tea or coffee
Hamilton Walker (inventor) Hamilton Walker (inventor) Hamilton Walker (1903—1990) was a Whangarei, New Zealand engineer, inventor, and farmer who developed and patented a variety of rotary engine designs. He was the creator of New Zealand's first rotary engine. Walker was born 10 November 1903 the third son of James Thompson Walker and Annie Beatrice Douglas. He attended Whangarei Technical School. In 1925 Walker married Vera Sophia Lovett. He took up farming, but in the 1930s began experimenting with rotary engines. Walker died 31 May 1990. Between 1957 and 1977 Walker was a full-time inventor. In 1961 Walker formed a company called Hamilton Walker