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 starter motor using stamped slotted armature plates.
| Identifier | ExFiles\Box 62\1\ scan0213 | |
| Date | 2nd November 1933 | |
| RR 758A (5H) (52674, 16-10-33) BM. 3/262/6. X6012 COMPLETED 24.11.33. 20/25 STANDARDISATION of PARTS. Date 2.11.33 X No. 6012. Drawing No. Part List Description of Parts. STARTER MOTOR TO RR. SCH. 399. STAMPED SLOTTED ARMATURE PLATES TO BE USED. Origin. To increase the power and stalling torque. Report of Experimental Test. Two motors have been bench tested with satisfactory results - see our report Hs{Lord Ernest Hives - Chair}/Wst. 8/MA. 5.7.33. The effect of using stamped slotted armature plates has been tested satisfactorily elsewhere. One of these motors has completed a road test on Bentley chassis 1.B.IV. in France with satisfactory results. Weight of Old Part. Cost of Old Part. £ 3 . 9 . Weight of New Part. Cost of New Part. £ 3 . 0 . Difference per Car. Difference per Car. £ - . 8 . 6 DECREASE. Signature from Cost Dept. that above is correct. G|R| 11/11/33 Cost of Parts in Works which will be scrapped if commenced on :- Series.........£...... Series.........£...... Series.........£...... INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 23-11-33 | Agreed Sg{Arthur F. Sidgreaves - MD} WOR.{Arthur Wormald - General Works Manager} | 13.11.33 | Agreed Wor.{Arthur Wormald - General Works Manager} C. | 14.11.33. | Agreed C. RG.{Mr Rowledge} | 15.11.33 | Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 18.11.33 | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 14.11.33 | Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 13.11.33 | Agreed EP{G. Eric Platford - Chief Quality Engineer} - if 10,000 miles completed satisfactorily. E.{Mr Elliott - Chief Engineer} | 22.11.33 | Agreed AE. PN.{Mr Northey} | 16.11.33 | Agreed PN.{Mr Northey} BN.{W.O. Bentley / Mr Barrington} | 18.11.33 | Agreed BN.{W.O. Bentley / Mr Barrington} SFT.{Mr Swift} | 14.11.33 | Agreed Sft.{Mr Swift} MX.{John H Maddocks - Chief Proving Officer} | 13.11.33 | Agreed Mx.{John H Maddocks - Chief Proving Officer} HS.{Lord Ernest Hives - Chair} | 13.11.33 | Agreed Hs.{Lord Ernest Hives - Chair} [Stamp: RECEIVED 23 XI 33 J.S.] | ||