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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).
Claim by Duckhams about their Adcol New Process 'RR' Oil and the decision on practical testing.

Identifier  ExFiles\Box 32\4\  Scan260
Date  28th March 1927
  
Hs.{Lord Ernest Hives - Chair} from ROY.{Sir Henry Royce}

X1588

ROY{Sir Henry Royce}12/MG28.3.27

Duckhams claim that their Adcol New Process "RR" Oil (which has no connection with the Rolls Royce Company) is of sufficient interest to warrant a practical test, and give the attached figures.

They claim that its viscosity curve denotes it is an Oil possessing remarkable resistance to heat, whilst at the same time it is non-gumming, and maintains perfect fluidity at atmospheric temperatures.

I have suggested to their Representative the abnormal pressure existent here at the moment precludes our making a test.

[Handwritten]
but pass on the figures in case you are interested & would like a sample.

ROY.{Sir Henry Royce} RZ

ENCLOSURE: Test figures.

[STAMP]
ENCLOSURE
Nº 675
"JUSTSO"

[STAMP]
RECEIVED
MAR
  
  


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