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).
The successful crack testing of new shock damper pistons following an oil quenching process.

Identifier  ExFiles\Box 151\2\  scan0366
Date  30th August 1938
  
To RHC {R. H. Coverley - Production Engineer} /Vs. {J. Vickers} from HPS. {Horace Percy Smith - Experimental Factory Mgr}
c. Rm {William Robotham - Chief Engineer} /AFM. {Anthony F. Martindale}
c. RHC. {R. H. Coverley - Production Engineer}
1292.
HPS. {Horace Percy Smith - Experimental Factory Mgr} 1/VS. {J. Vickers} 30.8.38.
Further to your RHC {R. H. Coverley - Production Engineer} /Vs. {J. Vickers} 4/JT.4.8.38. in regard to the cracking of Shock Damper Pistons Ex.31344.
We have now produced a set of pistons, carrying out the oil quenching in accordance with your recommendations, which have been crack tested and found to be quite satisfactory.
HPS. {Horace Percy Smith - Experimental Factory Mgr}
  
  


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