 Complete the following phrase:  Moore 18121877 was an engineer based in Liverpool. His company, Sampson Moore  Co. specialised in casting large iron structures and owned North Foundry in Gt Howard Street Liverpool. Sampson Moore  Co. supplied mortars for the Royal Navy and goods were shipped overseas on the 105 ft wooden steamship, the SS James Dennistoun. In 1876 Sampson Moore designed and supplied the first ever electric overhead crane, which was used to hoist guns at the Royal Arsenal in Woolwich, London. Specifically he patented the improved winch mechanism that allowed the lifting of heavier weights such as naval guns by an electric motor. Electric overhead cranes were subsequently installed in several foundries in the north of England and were considered one of many technical advancements of the British Industrial Revolution. The invention was celebrated in the 