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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).
Request to build a valve spring running rig for production testing and experimental cam forms.

Identifier  ExFiles\Box 143\1\  scan0028
Date  5th September 1934
  
X3269

To EJJ.

Hs{Lord Ernest Hives - Chair}/Smth.16/KW.5.9.34.

Valve Spring Running Rig.

We wish to have a valve spring running rig built similar to the ones at present used for production testing. RHC.{R. H. Coverley - Production Engineer} has agreed to make this so that the job can be finished at an early date. We should like three cam pieces making corresponding to the present production camshafts for Ph.II, 20/25 and Bentley.

It is very important that the weight of the tappets which operate the springs should be kept as low as possible and should in any case not exceed 0.3 lbs.

Since we may wish to try several experimental cam forms we should like the design to allow these corresponding pieces to be made as cheaply as possible.

Hs{Lord Ernest Hives - Chair}/Smth.
  
  


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