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 48 coil armature dynamo with pole piece modification for high output.
| Identifier | ExFiles\Box 172\3\ img126 | |
| Date | 18th June 1930 | |
| RR 755 REVISED (10M) (DP 687 4-1-29) BM. 2/5943. COMPLETED 12.9.30 ORIGINAL STANDARDISATION of CHASSIS PARTS. Date 18.6.30. [X] No. 6006. Description of Parts. 48 coil armature dynamo with pole piece modification for high output. (In conjunction with half charge switching scheme) Origin. Necessity of providing for larger output for the larger consumption head lamps now utilised, with an output curve which falls less at speed. Experimental Test Report. Also simplification of armature manufacture. Road Test Report. Drawing No. Part List A Scrap and replace at all costs, including Chassis already delivered to Customers. B Scrap and replace on Chassis in Works. [X] C Scrap present stock and replace on all Chassis not yet handed to test. D Use existing stock Alteration effective on future Chassis. Experimental Test Report. These machines have given great satisfaction on bench tests, commutation and silence being very good. Run 10,000 miles on 23-EX no trouble experienced. Weight of Old Part. Weight of New Part. Difference per Car. £ Cost of Old Part. £ Dealt with under Standardisation Cost of New Part. £ Sheet X. No. 6016 Difference per Car. £ Cost of Parts in Works which will be scrapped if commenced on :- Series.........£......... Series.........£......... Series.........£......... Signature from Cost Dept. that above is correct. INITIAL | DATE | REMARKS BJ. | 11.9.30 | Agreed Sg.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} | 21/6/30 | Agreed JAR WOR.{Arthur Wormald - General Works Manager} | 20.6.30 | Agreed Wor.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} | 20.6.30 | Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 20.6.30 | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 20.6.30 | Agreed BY.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 20.6.30 | Agreed EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 20.6.30 | Agreed. Also required on 25 HP. PN.{Mr Northey} | 20.6.30 | Agreed PN.{Mr Northey} very important. CWB. | | Agreed C. HS.{Lord Ernest Hives - Chair} | | Agreed Hs.{Lord Ernest Hives - Chair} | ||