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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 Lodge Plugs Ltd. regarding the supply of new H14 sparking plugs for evaluation.

Identifier  ExFiles\Box 162\6\  img130
Date  9th April 1932
  
Telephone. 276 RUGBY (2 lines)
Established 1904.
Telegrams. "LODGE, RUGBY"
84425-
Lodge Plugs Limited,
Rugby.

W. A.{Mr Adams} Robotham Esq.,
Rolls-Royce Ltd.,
D E R B Y.

Your Ref. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}4/AD.
Our Ref. BH/EW.
Date 9 April 1932.

DIRECTORS.
J.{Mr Johnson W.M.} ALFRED HOPPS.
BERNARD HOPPS.
ALEX M.{Mr Moon / Mr Moore} LODGE.
F.{Mr Friese} BRODIE LODGE.

All letters must be addressed to the Company, not to individuals

Dear Mr. Robotham,

In reference to your letter of the 24th. March last and your telephone request to-day, we are sending you herewith one dozen of our new type H14. sparking plug with 14 m/m thread.

As explained to you on the telephone, this is not quite in its final form as regards the external dimensions of the mica insulation and the radiator. If you find the performance of this plug satisfactory we should like to know if you would like it supplied with or without the radiator. The radiator undoubtedly assists to some extent in cooling the plug, but we think it will not run unduly hot in your engines without the radiator, if you object to the appearance of the latter.

Yours sincerely,

Bernard Hopps.

Enclo: (Plugs)

ENCLOSURE Nº 926
"JUSTSO"
  
  


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