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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).
Instructions for modifications to steering pivots following a test, including hole sizes and corner radius.

Identifier  ExFiles\Box 2\B002_X168\  00000001-page200
Date  11th December 1913
  
COPY.
COPY.
To Wor{Arthur Wormald - General Works Manager} from R.{Sir Henry Royce} for Hy.{Tom Haldenby - Plant Engineer}
Copy to J.{Mr Johnson W.M.}
Copy to Hm.{Capt. W. Hallam - Head Repairs}
15/12/13
HS{Lord Ernest Hives - Chair}/P 11.12.13.

Steering Pivots. X.168.

With reference to steering pivot test, pivots Nos.F.3597/8 and 3672/3, I have instructed that the lightening holes should be bored rather smaller.

Secondly that the radius at the corner should be made larger.

I have marked the drawing recently returned to Mr Day with these instructions on it.

I have also suggested that the heat treatment be examined as I fear the second heat is sufficiently high.

R.{Sir Henry Royce}

Bigger radius most important.

F.H.R.
  
  


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