Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 136,379 pages of information and 219,138 images on early companies, their products and the people who designed and built them.

Percy Riley

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(William Herbert) Percy Riley

1880 Born, son of William Riley, (Junior) and his wife Emma

1898 Percy Riley began to dabble in automobiles. He built his first car at 16, in 1898, secretly, because his father did not approve. It featured the first mechanically operated inlet valve.

1901 Living at Holly Bank, Radford Road, Coventry with parents, aged 20, an engineer mechanic [1]

At the age of 20 Percy was already a practical and ingenious engineer. At first, he simply supplied engines for Riley motorcycles, but his company soon began to focus on four-wheeled automobiles.

1903 Founded the Riley Engine Co to build and supply engines to Riley Cycle Co

1903 Percy patented a method of mechanical valve operation. [2]

Percy Riley's inventiveness led to several more patents on various key components of the car, including steering, clutches and brakes, gears, driving axles and crankshafts, and engines, but his most important invention was the development of an easily detachable wheel for motor vehicles. Not only did such wheels become a major part of the Riley Cycle Company's business but the design was licensed to 183 manufacturers worldwide.

1913 Percy was joined by three of his brothers (Victor, Stanley, and Allan) in a new business focused on manufacturing entire automobiles. This Riley Motor Manufacturing Co was located near Percy's Riley Engine Co. The first new model, the 17/30, was introduced at the London Motor Show that year.

Founder of the Riley Car company

1941 Percy Riley died at Tower House Hill Wootton, Warwickshire; he was succeeded by his widow Norah Riley ( -1974)[3])

See Also

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Sources of Information

  1. 1901 Census
  2. British Motor Cars 1950/51
  3. The Times, Aug 05, 1974
  • Biography of the Riley family, ODNB