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 20 HP Dynamo Armature with two coils and 57 Commutator Segments.
| Identifier | ExFiles\Box 172\2\ img032 | |
| Date | 30th August 1924 | |
| RR 755 (10M) (SL391 2-11-23) MP 261297 ORIGINAL COMPLETED 20.11.24. STANDARDISATION of CHASSIS PARTS. Date 30.8.24. Description of Parts: 20 HP. Dynamo Armature with two coils per slot (one dummy) and 57 Commutator Segments. X No. 4610 Drawing No. Part List Origin: Improvement in commutation and brush wear generally. Experimental Test Report. See EFC2/T25. 8.24. Road Test Report. Run 11,000 miles on 5-G-11. Run 13,000 miles on 6-G-11. No troubles, commutators in excellent condition - very little brush wear. 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. Cost of Old Part. £ 17. 4d. Cost of Parts in Works which will be scrapped if commenced on:— Weight of New Part. Cost of New Part. £ 1. 4. 7. Difference per Car. £ 7. 3 Increase. Series.........£......... Series.........£......... Series.........£......... Signature of Mr. De LOOZE that above is correct. My/Rns. 5.9.24. SIGNATURES | DATE | REMARKS MR. JOHNSON | 20.11.24 | Agreed. C. Johnson. MR. B. JOHNSON | 20.11.24 | Agreed. B.J. MR. ROYCE | 2/9/24 | Agreed should be adopted quickly MR. WORMALD | 1.9.24 | Agreed. Wor.{Arthur Wormald - General Works Manager} MR. ROWLEDGE | 1.9.24 | Agreed. Rg.{Mr Rowledge} MR. DAY | 2.9.24 | Agreed. Da.{Bernard Day - Chassis Design} MR. BAILEY | 1.9.24 | Agreed. BY.{R.W. Bailey - Chief Engineer} MR. PLATFORD | 1.9.24 | Agreed. EP.{G. Eric Platford - Chief Quality Engineer} MR. ELLIOTT | 2/9/24 | Agreed CE. MR. NORTHEY | 17.11.24 | Agreed. PN.{Mr Northey} MR. HIVES | 18.11.24 | Agreed. E.{Mr Elliott - Chief Engineer} Hives. STAMPS: [CHASSIS], [P.D.] | ||