Background
Guy was born at Penarth, in the Vale of Glamorgan, Wales in 1887.
Guy was born at Penarth, in the Vale of Glamorgan, Wales in 1887.
Following his education he joined the Taff Vale Railway as a student apprentice, and studied at the University College of South Wales where he gained a diploma in mechanical and electrical engineering.
In 1915, Guy joined the British Westinghouse Company, (later to become Metropolitan-Vickers) as a design engineer In 1918 he was appointed chief mechanical engineer at that company, a post he was to hold until 1941. Whilst at Metrovicks, Guy was responsible for many innovations in the design of steam turbo-generators.
Guy was elected a Fellow of the Royal Society in 1936.
During World World War II, Guy served on a number committees including the Scientific Advisory Council of the Ministry of Supply. He was awarded a Commander of the Order of the British Empire in 1943 followed by a knighthood in 1949.
From 1941 until his retirement in 1951, Guy was secretary of the Institution of Mechanical Engineers.
Royal Society.