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 solid pole pieces for the 20 HP dynamo to reduce production costs.
| Identifier | ExFiles\Box 165\6\ img113 | |
| Date | 14th December 1926 | |
| RR 755 REVISED (10M) (DE 444 6-10-26) BM. X5660. COMPLETED 12.1.27 STANDARDISATION of CHASSIS PARTS. Date 14.12.26 Description of Parts. SOLID POLE PIECES FOR 20 HP. DYNAMO. Origin. To lessen the cost of production. Experimental Test Report. Road Test Report. Some time ago we made care-ful tests of an otherwise standard 20 HP. dynamo, but with laminated pole pieces instead of solid pole pieces, and we found no indication of any deleterious effect on the performance of either output curve, heating, or noise. There appears no reason why the machine should not be produced with solid pole pieces - the 40/50 HP. dynamo is being so produced - we have obtained information from the Estimating Dept. that solid pole pieces would result in the saving of 6/4d. per chassis. We therefore recommend this item for standardisation. Weight of Old Part. Cost of Old Part. £ - 17. 0d. Weight of New Part. Cost of New Part. £ - 10. 8d. Difference per Car. Difference per Car. £ - 6. 4d. saving. Signature from Cost Dept. that above is correct. My/Rb.{R. Bowen} 6.1.27 [Stamped across document: 20. H.P. CHASSIS] Box No. X 5660 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. C [X] Scrap present stock and replace on all Chassis not yet handed to test. D Use existing stock Alteration effective on future Chassis. Cost of Parts in Works which will be scrapped if commenced on :- Series…£…… Series…£…… Series…£…… INITIAL | DATE | REMARKS BJ. | 12-1-27 | agreed R.{Sir Henry Royce} | 20.12.26 | Agreed. FHR. WOR.{Arthur Wormald - General Works Manager} | 15.12.26 | Agreed. Wor.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} | 14.12.26 | Agreed. Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 15.12.26 | Agreed. Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 13.12.26 | Agreed. BY.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 14.12.26 | Agreed. EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 30.12.26 | Agreed. E.{Mr Elliott - Chief Engineer} PN.{Mr Northey} | 15.12.26 | Agreed. PN.{Mr Northey} CWB. | 17.12.26 | Agreed. CWB. HS.{Lord Ernest Hives - Chair} | 14.12.26 | Agreed. Hs.{Lord Ernest Hives - Chair} | ||