cylinder, containing four double-ended curved pistons. The pistons reciprocated in pairs, while the cylinder rotated around them, carrying around the spark plug and inlet/exhaust ports. Family In 1911 he married Violet Elsie Partridge in Wolverhampton. Violet petitioned for divorce in 1926. Bradshaw married again in 1927 to Muriel Mathieson in Kensington, London. He died in 1969 at Hitchin in Hertfordshire. See also ABC motorcycles ABC Motors Notes External links Granville Bradshaw 1887 births 1969 deaths English aerospace engineers English aviators Officers of the Order of the British Empire Engineers from Preston, Lancashire 20th-century British inventors 20th-century British engineers