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 a Dynamo Pinion and Idler Gear due to difficulty in production.
| Identifier | ExFiles\Box 136\1\ scan0233 | |
| Date | 29th May 1937 | |
| RR 755A (SH) 22635 3/9/36 J.W.S. COMPLETED 21.8.37. 25/30 H.P. STANDARDISATION of PARTS Date 29.5.37. X No. 1155. Drawing No. E.58445 Part List E.54765 Description of Parts. Dynamo Pinion and Idler Gear in S/ZNX (not hardened) Brinnel 364-387. Origin. Difficulty in quietening in production due to distortion after hardening. Report of Experimental Test. Satisfactory 15,000 miles test on 6.B.IV. Gear teeth in good condition and no wear as measured in that there was no increase in backlash after the above test. COSTS: - Cost of Old Part: MATERIAL £- 4s. 7d., LABOUR £- 12s. 10d., CHARGES £1 2s. 5d., TOTAL £1 19s. 10d. - Cost of New Part: MATERIAL £- 4s. 2d., LABOUR £- 8s. 7d., CHARGES £- 15s. 0d., TOTAL £1 7s. 9d. - Nett Decrease: 12s. 1d. Signature from Cost Dept. that above is correct. G/RL 22.6.37. APPROVALS: INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 20.8.37 | Agreed Sg.{Arthur F. Sidgreaves - MD} WOR.{Arthur Wormald - General Works Manager} Hs.{Lord Ernest Hives - Chair} | | Agreed Hs.{Lord Ernest Hives - Chair} C. | 30.6.37 | Agreed C. E.{Mr Elliott - Chief Engineer} | 1.7.37 | Agreed E.{Mr Elliott - Chief Engineer} DA.{Bernard Day - Chassis Design} | 30.6.37 | Agreed Da.{Bernard Day - Chassis Design} By.{R.W. Bailey - Chief Engineer} | 30.6.37 | Agreed By.{R.W. Bailey - Chief Engineer} E.P. | | SFT.{Mr Swift} RHC.{R. H. Coverley - Production Engineer} | 5.8.37 | Agreed RHC.{R. H. Coverley - Production Engineer} MX.{John H Maddocks - Chief Proving Officer} | 29.6.37 | Agreed Mx.{John H Maddocks - Chief Proving Officer} HS.{Lord Ernest Hives - Chair} Rm.{William Robotham - Chief Engineer} | 9.6.37 | Agreed Rm.{William Robotham - Chief Engineer} | ||