Rolls-Royce Archives
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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 regarding repeated valve spring failures on a Bentley in Detroit and a Society of Automotive Engineers (S.A.E.) paper on 'Knee Action'.

Identifier  ExFiles\Box 173\1\  img211
Date  25th January 1934
  
F / Rm{William Robotham - Chief Engineer} 20 / KW 5 2 34
Detroit Athletic Club
Detroit
Hs{Lord Ernest Hives - Chair}
JAN 25TH / 34
My time has been somewhat occupied in getting the Bentley to Detroit owing to the repeated valve spring failures. I dared not run the risk of a valve dropping into the cylinder and writing off the engine so I finally left the car & got a complete set of new valve spring made in Detroit.
I am fetching it tomorrow.
I got in for several S.A.E. papers as there has been a meeting of the society here. Olley read a paper on "Knee Action" which was a summary of the information I have already given you.
I contacted with the man who has been doing Chryslers riding work and he says that with their
  
  


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