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).
Comparison of oil consumption and 'blow by' on Hepworth and Grandage rings.

Identifier  ExFiles\Box 155\2\  scan0326
Date  25th May 1939
  
-4- Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}8/JH.25.5.39.

comparison with oil consumption and 'blow by' on Hepworth and
Grandage rings.

Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}
Swdl{Len H. Swindell}
  
  


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