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 report for a Nickel Steel clutch pressure ring to overcome cracking.
| Identifier | ExFiles\Box 85\2\ scan0073 | |
| Date | 28th March 1934 | |
| RR 7558M (SH) (S7312, 29-12-33) BM. 3/640/2 COMPLETED 10.4.34. BENTLEY STANDARDISATION of PARTS. Date 28.3.34 X No. 212. Drawing No. GB. 1057. Part List Description of Parts. PRESSURE RING IN CLUTCH MADE IN NICKEL STEEL. Origin. To overcome cracking of Plate. Report of Experimental Test. Fitted to Test Bed Engine and completed 5000 clutch slips without showing any sign of picking up or seizure. Ran 10,000 miles on 4-B-IV. Received Stamp: J.S. APR 1934 Weight of Old Part. Cost of Old Part. £ - 13 - 8 Weight of New Part. Cost of New Part. £ 1 - 10 - 2 Difference per Car. £ - 16 - 6 INCREASE Signature from Cost Dept. that above is correct. G/RH{R. Hollingworth} 24-3-34 Cost of Parts in Works which will be scrapped if commenced on:- Series.........£......... Series.........£......... Series.........£......... INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 9-4-34. | Agreed Sg.{Arthur F. Sidgreaves - MD} WOR.{Arthur Wormald - General Works Manager} | 29.3.34. | Agreed Wor.{Arthur Wormald - General Works Manager} C. | 4.4.34. | Agreed C. RG.{Mr Rowledge} | | Rg.{Mr Rowledge} absent. DA.{Bernard Day - Chassis Design} | 29.3.34. | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 29.3.34. | Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 28.3.34. | Agreed EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 28.3.34. | Agreed AE. BN.{W.O. Bentley / Mr Barrington} | 30.3.34. | Agreed Bn.{W.O. Bentley / Mr Barrington} SFT.{Mr Swift} | 28.3.34. | Agreed Sft.{Mr Swift} MX.{John H Maddocks - Chief Proving Officer} | 28.3.34. | Agreed Mx.{John H Maddocks - Chief Proving Officer} HS.{Lord Ernest Hives - Chair} | 28.3.34. | Agreed Hs.{Lord Ernest Hives - Chair} | ||