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 document for a scheme to prevent valves dropping in the cylinder head.
| Identifier | ExFiles\Box 88\4\ scan0081 | |
| Date | 29th May 1934 | |
| RR 755BN{W.O. Bentley / Mr Barrington} (5H) (57312, 29-12-33) BM. 3/640/2 COMPLETED 12.7.34. BENTLEY STANDARDISATION of PARTS. Date 26.6.34 29.5.34. X No. 254. Drawing No. Part List Description of Parts. SCHEME TO PREVENT VALVES DROPPING IN CYLINDER HEAD. Origin. To prevent engine destruction due to valve breakage. Report of Experimental Test. These have only been run on the Test Bed. A 10,000 miles test is starting immediately. Weight of Old Part. Cost of Old Part. £ Cost of Parts in Works which will be scrapped if commenced on :- Weight of New Part. Cost of New Part. £ Series.......£....... Difference per Car. Difference per Car. £ NEGLIGIBLE Series.......£....... Signature from Cost Dept. that above is correct. GRL 22.6.34 Series.......£....... INITIAL DATE REMARKS SG.{Arthur F. Sidgreaves - MD} 9-7-34 Agreed Sg.{Arthur F. Sidgreaves - MD} WOR.{Arthur Wormald - General Works Manager} 28.6.34. Agreed Wor.{Arthur Wormald - General Works Manager} C. 27.6.34. Agreed C. RG.{Mr Rowledge} Rg.{Mr Rowledge} absent. DA.{Bernard Day - Chassis Design} 29.6.34. Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} 26.6.34. Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} 27.6.34. Agreed EP.{G. Eric Platford - Chief Quality Engineer} If O.K. on 10,000 miles test. E.{Mr Elliott - Chief Engineer} 27.6.34. Agreed AE. BN.{W.O. Bentley / Mr Barrington} 4.7.34. Agreed Bn.{W.O. Bentley / Mr Barrington} SFT.{Mr Swift} 27.6.34. Agreed Sft.{Mr Swift} MX.{John H Maddocks - Chief Proving Officer} 27.6.34. Agreed Mx.{John H Maddocks - Chief Proving Officer} HS.{Lord Ernest Hives - Chair} 29.5.34. Agreed Hs.{Lord Ernest Hives - Chair} Received J.S. JUL 1934 | ||