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 exhaust valves to replace a failed steel type.
| Identifier | ExFiles\Box 172\1\ img162 | |
| Date | 16th April 1930 | |
| RR 755 REVISED (10M) (DF 657 4-1-29) BM. 2/2943 ORIGINAL COMPLETED 22.5.30. STANDARDISATION of CHASSIS PARTS. Date 16.4.30. Description of Parts. EXHAUST VALVES E.53158. S/SLV. X No. 5250 Drawing No. F.53158 Origin. To replace Firth's H.R.Steel E.5559 which failed during test in France. Experimental Test Report. Run 9,000 miles without failure. This is the previous standard material which has given no trouble. Road Test Report. Fitted to 14-G4 and run 9,000 miles without showing any sign of failure. Part List: A Scrap and replace at all costs, including Chassis already delivered to Customers. B Scrap and replace on Chassis in Works. C Scrap present stock and replace on all Chassis not yet handed to test. D Use existing stock Alteration effective on future Chassis. Weight of Old Part. Weight of New Part. Difference per Car. Signature from Cost Dept. that above is correct. G/TD.19.5.30 Wor.{Arthur Wormald - General Works Manager} Cost of Old Part. Cancels Standardisation Sheet No. X.1474. Cost of New Part. Difference per Car. G/20.5.30. Cost of Parts in Works which will be scrapped if commenced on:- Series.........£......... Series.........£......... Series.........£......... INITIAL DATE REMARKS BJ. Sg.{Arthur F. Sidgreaves - MD} 21.5.30 Agreed Sg.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} April 29th Agreed pp. R.{Sir Henry Royce} Rg.{Mr Rowledge} By.{R.W. Bailey - Chief Engineer} HS{Lord Ernest Hives - Chair} & E absent in France. WOR.{Arthur Wormald - General Works Manager} 17.4.30 Agreed Wor.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} 17.4.30 Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} 17.4.30 Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} 17.4.30 Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} 24.4.30 Agreed. No cars to be passed unless as above. Present exh. H.R. steel to be changed. E.{Mr Elliott - Chief Engineer} 17.4.30 Agreed Arranged Ra. and Sft.{Mr Swift} EP.{G. Eric Platford - Chief Quality Engineer} PN.{Mr Northey} 24.4.30 Agreed PN.{Mr Northey} CWB. 17.4.30 Agreed C. HS.{Lord Ernest Hives - Chair} Agreed. [STAMPED] 20/25 H.P. CHASSIS | ||