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Suitable materials for piston ring stops.


Identifier  WestWitteringFiles\P\July1926-September1926\  Scan001
Date  1st July 1926
  
R.R. 285A (100 T) (S.H. 159. 11-8-26) G. {Mr Griffiths - Chief Accountant / Mr Gnapp} 2800
TO HS. {Lord Ernest Hives - Chair} FROM R. {Sir Henry Royce}
Copy to BJ.
" RG. {Mr Rowledge}
" BY. {R.W. Bailey - Chief Engineer}
ORIGINAL
R2/M1.7.26.
PISTON RING STOPS.
X2103
/2603
ring
Piston/pins should be in some material
having as nearly as possible the same co-efficient of expan-
sion as the metal of the piston, and non-cutting, so as not
to injure the cylinder bore. I suggest we try monel metal
or other tough non-ferrous alloys such as:-
Silicon copper.
Manganese bronze.
Delta metal.
Nickel brass.
Then the top of the pin can be made flush instead of recessed,
thus reducing the gas leak.
R. {Sir Henry Royce}
  
  
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).


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