Siddeley-Deasy
Industry | Engineering |
---|---|
Founded | 1912 |
Defunct | 1919 |
Fate | Merged with Armstrong Siddeley |
Key people | John Siddeley, 1st Baron Kenilworth |
The Siddeley-Deasy Motor Car Company Limited was a British automobile, aero engine and aircraft company based in Coventry in the early 20th century. It was central to the formation, by merger and buy-out, of the later Armstrong Siddeley Motor and Armstrong Whitworth Aircraft companies.
History
The Deasy Motor Car Manufacturing Company Limited was founded by
Siddeley-Deasy grew rapidly using
First World War
During the First World War, Siddeley-Deasy grew to have 5,000 workers producing ambulances and aircraft engines, which included the
Armstrong Siddeley
After the war, conditions for manufacturers were difficult, and in 1919 Siddeley suggested
Armstrong Siddeley produced radial aircraft engines throughout its life, together with turbojets after the war. In April 1920 or slightly later, it produced its own subsidiary, The Sir W.G. Armstrong Whitworth Aircraft Co. Ltd. This last company went on to produce Siskin fighters in large numbers, together with all the later Armstrong Whitworth designs.
In March 1927, John Siddeley bought the parent Armstrong Whitworth Development Co. Ltd. and its subsidiaries from Armstrong Whitworth, renaming it The Armstrong Siddeley Development Co. Ltd. The name of the aircraft subsidiary, Sir W.G. Armstrong Whitworth Aircraft Co. Ltd. remained the same. John Siddeley reported that since 1919 his company had each year produced more 6-cylinder car engines than any other European producer.[11] The two key members of the Siddeley Deasy design team stayed with the renamed company for many years. John Lloyd was chief designer until 1948 and retired as technical director in 1959. F. M. Green retired in 1933.
Products
Cars
- The J D Siddeley Type Deasy Car for 1911[12] Four models with seven standard styles of coachwork[13]
- "The highest-grade British car of moderate power"
- 12-16 hp 4-cyl poppet valve 75x110 = 1944 cc £385
- 14-20 hp 4-cyl poppet valve 80x130 = 2614 cc £375
- 16-20 hp 6-cyl sleeve valve 90x130 = 4962 cc £445 (the Silent Knight engine was introduced in late 1911)
- 18-24 hp 6-cyl sleeve valve 90x130 = 4962 cc £685
- 1912 Stoneleigh 13.9 hp 4-cyl sleeve-valve 75x114 = 2015 cc
Car engines
Aero-engines
Aircraft
See also
References
- ^ Tapper p. 11
- ^ Tapper p. 12
- ^ Deasy Motor-Car Manufacturing Company (Limited). The Times, Friday, 8 November 1912; p. 21; Issue 40051.
- ^ Deasy Motor Car Manufacturing Co minute book pages 245 and 243. Original document held at Coventry Archives with reference PA1060/1/1.
- ISBN 978-1-904788-36-2
- ISBN 978-1-904788-36-2
- ^ Tapper p. 114
- ^ Tapper p. 15
- ^ Tapper pp. 17–18
- ^ Display advertising. W. G. Armstrong, Whitworth & Co. Limited. The Times, Saturday, 24 May 1919; p. 9; Issue 42108.
- ^ Extraordinary General Meeting, Armstrong Whitworth Development Company. The Times, Tuesday, 15 March 1927; p. 24; Issue 44530.
- ^ Display advertising, Stand 99 at Olympia, The Deasy Motor Car Mfg. Co., Ltd. The Times Friday, 4 November 1910; p. 7; Issue 39421
- ^ Display advertising, The Deasy Motor Car Mfg. Co., Ltd.. The Times, Tuesday, 21 March 1911; p. 6; Issue 39538
Bibliography
- Tapper, Oliver (1973). Armstrong Whitworth Aircraft since 1913. Putnam Publishing. ISBN 978-0-370-10004-3.