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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).
Modifications to the oil supply for J.III silent tappet plungers.

Identifier  ExFiles\Box 106\5\  scan0099
Date  9th September 1933
  
X5560

To RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Std.

Hs{Lord Ernest Hives - Chair}/Std.1/KT.9.9.33.

MODIFICATIONS TO OIL SUPPLY TO PLUNGERS OF J.III SILENT TAPPETS.

We require to feed the oil to the plungers from the top of the plunger casings downwards to plungers, instead of upwards as in present design.

Will you please make a set of plunger casings to the following drawings :-

E.59583 - Modified to Hs.{Lord Ernest Hives - Chair}1129
E.59584 - " " Hs.{Lord Ernest Hives - Chair}1130
E.59585 - Modified in exactly the same manner as Hs.{Lord Ernest Hives - Chair}1130
E.59586 - " " " " " " " Hs.{Lord Ernest Hives - Chair}1130
E.59587 - " " " " " " " Hs.{Lord Ernest Hives - Chair}1130

These modifications entail only a slight alteration to the castings and different drilling of the oil holes. (Hs.{Lord Ernest Hives - Chair} drgs. attached).

Hs{Lord Ernest Hives - Chair}/C. S. Steadman.
  
  


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