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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).
Corrosion found on carburetter petrol control valves, suggesting the use of stainless steel for both the valves and rivets.

Identifier  ExFiles\Box 38\1\  Scan038
Date  11th February 1918
  
X 3406

BY.{R.W. Bailey - Chief Engineer} from EP.{G. Eric Platford - Chief Quality Engineer}
c. to Wd.{Mr Wood/Mr Whitehead}
c. to EH.
c. to F.Hall.

EP{G. Eric Platford - Chief Quality Engineer}12/F241018.

RE. R.R. C.H. PETROL CONTROL VALVES.

In examining repairs, we have found that on some carburetters a considerable amount of corrosion has taken place. This corrosive matter has settled in the groove of the needle valve.

The use of stainless steel for these valves has certainly in these cases shown itself to be highly satisfactory. At the same time it is noticed that the rivets which have been used for affixing the bronze parts on/to the spindle, do not appear to be stainless steel, and have accounted for a considerable amount of corrosion, (rust).

I certainly suggest that instructions should be given for stainless steel to be used for these rivets.

It has also been suggested that the whole valve should be made out of stainless steel, as the corrosive matter emanates from the action of water (probably salt water) on the bronze parts.

EP.{G. Eric Platford - Chief Quality Engineer}

R.R. 284. B (200) S.E. 427. 11-2-18 (G.{Mr Griffiths - Chief Accountant / Mr Gnapp})
  
  


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