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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Letter from K.L.G Sparking Plugs regarding the supply of special F.E.30x plugs for testing.

Identifier  ExFiles\Box 162\5\  img010
Date  21th May 1937
  
K·L·G Sparking Plugs Limited
CONTRACTORS TO THE AIR MINISTRY, ADMIRALTY, WAR OFFICE & FOREIGN GOVERNMENTS.
Sole Manufacturers of 'KLG' Sparking Plugs, also Jigs and Precision Tools
PUTNEY VALE, LONDON, S.W.15
Telephone Putney 2671 (Four Lines)
Telegrams: Kaelgee, Phone, London.
PLEASE REFER TO TECHNICAL DEPT. AND QUOTE REFERENCE CMC/MEN IN YOUR REPLY
21st May, 1937.
Messrs. Rolls-Royce Limited,
Derby.
Gentlemen,
For the attention of Mr. H.E. West.
We are sending you under separate cover and free of charge six special F.E.30x plugs which have been fitted with electrodes made from copper wire and having the shortest possible piece of nickel brazed on to form a firing point.
We very much hope that you will be able to test these in comparison with the standard type F.E.30x with a view to ascertaining whether the improved heat conductivity which the copper gives has any noticeable effect on erosion of the central electrode.
Yours faithfully,
p.p. K.L.G. SPARKING PLUGS LIMITED.
Director.
  
  


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