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 new Bentley petrol pump diaphragms and bakelite valves to improve reliability.
| Identifier | ExFiles\Box 149\1\ scan0162 | |
| Date | 13th May 1935 | |
| COMPLETED 4.7.35. RR 7558 (5H) (69654. 19-9-34) BM 3/1832/5. BENTLEY STANDARDISATION of PARTS. Date 13.5.35. X No. 1263. Drawing No. Part List Description of Parts. NEW BENTLEY PETROL PUMP DIAPHRAGMS AND BAKELITE VALVES. Origin. To improve reliability. Report of Experimental Test. We have had trouble with the Pump Diaphragms shrinking and causing failure in the petrol supply. The new diaphragm is a marked improvement. Bakelite valves more consistent. Running on all experimental cars. Will have completed 15,000 miles on 5-B-IV before being delivered to customers. Weight of Old Part. Weight of New Part. Difference per Car. Cost of Old Part. £ Cost of New Part. £ Difference per Car. £ No Difference Cost of Parts in Works which will be scrapped if commenced on:- Series.........£......... Series.........£......... Series.........£......... Signature from Cost Dept. that above is correct. G/R/H 19.6.35 INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 3-7-35 | Agreed Sg.{Arthur F. Sidgreaves - MD} WOR.{Arthur Wormald - General Works Manager} | 27.6.35. | Agreed Wor.{Arthur Wormald - General Works Manager} C. | 27.6.35. | Agreed C. RG.{Mr Rowledge} | | DA.{Bernard Day - Chassis Design} | 2.7.35. | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 27.6.35. | Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 26.6.35. | Agreed EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 27.6.35. | Agreed E.{Mr Elliott - Chief Engineer} SFT.{Mr Swift} | 27.6.35. | Agreed Sft.{Mr Swift} MX.{John H Maddocks - Chief Proving Officer} | 26.6.35. | Agreed Mx.{John H Maddocks - Chief Proving Officer} HS.{Lord Ernest Hives - Chair} | 26.6.35. | Agreed Hs.{Lord Ernest Hives - Chair} | ||