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
Joseph Day (inventor) Joseph Day (inventor) Joseph Day (1855 in London – 1946) is a little-known English engineer who developed the extremely widely used crankcase-compression two-stroke petrol engine, as used for small engines from lawnmowers to mopeds and small motorcycles. He trained as an engineer at the Crystal Palace School of Engineering at Crystal Palace in London, began work at Stothert & Pitt in Bath, and in 1889 designed the crankcase-compression two-stroke engine as it is widely known today (in contrast to the two-stroke engine designed by Dugald Clark), the Valve-less Two-Stroke Engine. In 1878 he started his own business, an iron foundry