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 Hall (metallurgist) at Tipton, the firm becoming Bailey, Barrows and Hall in 1834. In 1838, he patented the use of 'bulldog' (roasted tap cinder) to protect the iron bottom plate of the puddling furnace (Patent no.7778 21 August 1838). In 1849, he moved to small house at Handsworth but continued to visit the works occasionally. He died there in 1862. Joseph Hall (metallurgist) Joseph Hall 1789 – 1862, the inventor of 'Wet Puddling', was born in 1789 and apprenticed in 1806 as a puddler to use Henry Cort's puddling process. He tried adding old iron to the charge of the puddling furnace