Grace's Guide To British Industrial History

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Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,711 pages of information and 247,105 images on early companies, their products and the people who designed and built them.

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.

A. C. Cossor: Difference between revisions

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* 1908 A. C. Cossor leaves his father's business to found his own company.
* 1908 A. C. Cossor leaves his father's business to found his own company.
*During the first world war the company produces valves for the war effort including large numbers of type R valves, a generic valve design produced by several other companies.
*In 1918 the company moved to [[Highbury]], London, to a factory called the "Aberdeen Works". The office building which was called Cossor House, is still standing and now forms part of [[London Metropolitan University]] campus. Many of the buildings interior art deco furnishings remain untouched.
*After WWI the company produces its first radio sets in kit form.
*1924 Cossor introduce the first British valves to incorporate an oxide coated filament.
*1927 Company launches its famous "Melody Maker" radio set.
*1930 First British [[RF]] [[pentode]] valve was made by Cossor.
*1932 Company introduces its first cathode ray [[oscilloscope]].
*1935 Cossor [[cathode ray tube]] is used in the [[Daventry Experiment]] for [[radar]] research, conducted using the [[BBC]] [[transmitter]] at [[Daventry]].
*1936 Company sells its first television [[receiver]].
*1937 Receivers for the [[Chain Home]] primary radar system, the worlds first radar air defence system, are built by Cossor.
*Cossor remains pre-eminent in the development of the cathode ray oscilloscope with the introduction of a dual beam version of the instrument.
*1938 Cossor becomes a [[public limited company]].
*1939 The company switches to war production.
*Cossor becomes involved in the early development of airborne [[Identification, friend or foe|IFF]] radar.


*1945 [[Secondary radar]] for air traffic control becomes a key area of development for Cossor.
* WWI During the first world war the company produces valves for the war effort including large numbers of type R valves, a generic valve design produced by several other companies.
*1945 The companies valve business becomes a subsidiary Electronic Tubes Ltd.
 
*Cossor withdraws from valve manufacture.  
* In 1918 the company moved to Highbury, to a factory called the Aberdeen Works. The office building which was called Cossor House, is still standing and now forms part of London Metropolitan University campus. Many of the buildings interior art deco furnishings remain untouched.
 
* After WWI the company produces its first radio sets in kit form.
 
* 1924 Cossor introduce the first British valves to incorporate an oxide coated filament.
 
* 1927 Company launches its famous "Melody Maker" radio set.
 
* 1929 Advert for Radio Receiving Valves. Also as makers of H. T. Eliminators; Trickle Chargers; L. F. Transformers; Loud Speakers; Motor Bulbs. (Wireless
 
* 1930 First British RF pentode valve was made by Cossor.
 
* 1932 Company introduces its first cathode ray oscilloscope
 
* 1935 Cossor cathode ray tube is used in the Daventry Experiment for radar research, conducted using the BBC transmitter
 
* 1936 Company sells its first television receiver
 
* 1937 Receivers for the Chain Home primary radar system, the worlds first radar air defence system, are built by Cossor.
 
* Cossor remains preeminent in the development of the cathode ray oscilloscope with the introduction of a dual beam version of the instrument.
 
* 1938 Cossor becomes a public limited company
 
* 1939 The company switches to war production
 
* Cossor becomes involved in the early development of airborne IFF radar.
 
* 1945 Secondary radar for air traffic control becomes a key area of development
 
* 1945 The companies valve business becomes a subsidiary [[Electronic Tubes]] and Cossor withdraws from valve manufacture.  
 
*1949 [[EMI]] acquire control of Cossor.
*1949 [[EMI]] acquire control of Cossor.
*1958 Cossor sells its radio and television business to [[Philips]]
*1958 Cossor sells its radio and television business to [[Philips]]
*1958 Company moves to [[Harlow]], [[Essex]]
 
*1958 Company moves to Harlow
 
*1961 Cossor is acquired by [[Raytheon]]
*1961 Cossor is acquired by [[Raytheon]]




* 1929 Advert for Radio Receiving Valves. Also as makers of H. T. Eliminators; Trickle Chargers; L. F. Transformers; Loud Speakers; Motor Bulbs. (Wireless)
)




Revision as of 11:41, 19 November 2007

of Highbury Grove, London, N5

  • 1859 The company was established by Alfred Charles Cossor in Clerkenwell to manufacture scientific glassware.
  • 1875 His eldest son, also called Alfred Charles Cossor joined the company, and he founded the A. C. Cossor electronics company.
  • The companies expertise in the manufacture of electrical glassware such as early cathode ray tubes and X-Ray tubes, led the company to diversify into electronics.
  • 1885 The younger son Frank Cossor joined the company, and eventually took over the running of the original scientific glassware company which remains to this day as Accoson, a manufacturer of sphygmomanometers.
  • In 1902 the company produced the first British made Braun tube
  • 1904 Experimental valves are produced by Cossor for Ambrose Fleming
  • 1908 A. C. Cossor leaves his father's business to found his own company.
  • WWI During the first world war the company produces valves for the war effort including large numbers of type R valves, a generic valve design produced by several other companies.
  • In 1918 the company moved to Highbury, to a factory called the Aberdeen Works. The office building which was called Cossor House, is still standing and now forms part of London Metropolitan University campus. Many of the buildings interior art deco furnishings remain untouched.
  • After WWI the company produces its first radio sets in kit form.
  • 1924 Cossor introduce the first British valves to incorporate an oxide coated filament.
  • 1927 Company launches its famous "Melody Maker" radio set.
  • 1929 Advert for Radio Receiving Valves. Also as makers of H. T. Eliminators; Trickle Chargers; L. F. Transformers; Loud Speakers; Motor Bulbs. (Wireless
  • 1930 First British RF pentode valve was made by Cossor.
  • 1932 Company introduces its first cathode ray oscilloscope
  • 1935 Cossor cathode ray tube is used in the Daventry Experiment for radar research, conducted using the BBC transmitter
  • 1936 Company sells its first television receiver
  • 1937 Receivers for the Chain Home primary radar system, the worlds first radar air defence system, are built by Cossor.
  • Cossor remains preeminent in the development of the cathode ray oscilloscope with the introduction of a dual beam version of the instrument.
  • 1938 Cossor becomes a public limited company
  • 1939 The company switches to war production
  • Cossor becomes involved in the early development of airborne IFF radar.
  • 1945 Secondary radar for air traffic control becomes a key area of development
  • 1945 The companies valve business becomes a subsidiary Electronic Tubes and Cossor withdraws from valve manufacture.
  • 1949 EMI acquire control of Cossor.
  • 1958 Cossor sells its radio and television business to Philips
  • 1958 Company moves to Harlow


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