Rolls-Royce Archives
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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).
Standardisation of stepped exhaust valve stems.

Identifier  ExFiles\Box 17\6\  Scan250
Date  1st June 1934
  
RR 788 (SH) (S2674, 16-10-33) BM. 3/262/6.
COMPLETED 21.6.34.
40/50 STANDARDISATION OF PARTS.
Date 1.6.34.
X No. 7060.
Drawing No.
Part List
Description of Parts. EXHAUST VALVE STEMS STEPPED.
Origin. To prevent valves sticking, and to bring into line with 25 HP. and Bentley.
Report of Experimental Test. Fitted to 28-EX and ran 10,000 miles in France.
Weight of Old Part.
Cost of Old Part. £
Weight of New Part.
Cost of New Part. £
Difference per Car.
Difference per Car. £ NEGLIGIBLE
Signature from Cost Dept. that above is correct. G.W. 29-5-34.
Cost of Parts in Works which will be scrapped if commenced on:-
Series..........£.......
Series..........£.......
Series..........£.......
INITIAL | DATE | REMARKS
SG.{Arthur F. Sidgreaves - MD} | 19.6.34 | Agreed Sg{Arthur F. Sidgreaves - MD}
WOR.{Arthur Wormald - General Works Manager} | 4.6.34. | Agreed Wor.{Arthur Wormald - General Works Manager}
C. | 4.6.34. | Agreed C.
RG.{Mr Rowledge} | | Rg.{Mr Rowledge} absent.
DA.{Bernard Day - Chassis Design} | 6.6.34. | Agreed Da.{Bernard Day - Chassis Design}
BY.{R.W. Bailey - Chief Engineer} | 5.6.34. | Agreed By.{R.W. Bailey - Chief Engineer}
EP.{G. Eric Platford - Chief Quality Engineer} | 2.6.34. | Agreed EP.{G. Eric Platford - Chief Quality Engineer}
E.{Mr Elliott - Chief Engineer} | 6.6.34. | Agreed AE.
BN.{W.O. Bentley / Mr Barrington} | 4.6.34. | Agreed Bn.{W.O. Bentley / Mr Barrington}
SFT.{Mr Swift} | 4.6.34. | Agreed Sft.{Mr Swift}
MX.{John H Maddocks - Chief Proving Officer} | 2.6.34. | Agreed Mx.{John H Maddocks - Chief Proving Officer}
HS.{Lord Ernest Hives - Chair} | 1.5.34. | Agreed Hs.{Lord Ernest Hives - Chair}
Received.
  
  


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