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 chassis switchbox for a two-rate dynamo charge scheme.
| Identifier | ExFiles\Box 163\6\ img147 | |
| Date | 9th January 1931 | |
| RR 758 (10M) (3-7-30) BM. 6/2571. STANDARDISATION of CHASSIS PARTS. COMPLETED 15.5.31. 18. Date 9.1.31. X No. 6016. Description of Parts. SWITCHBOX FOR USE WITH TWO-RATE CHARGE SCHEME PROVIDING FOR FULL DYNAMO OUTPUT IN S & T POSITION AS WELL AS IN H S & T POSITION. Origin. The fact that it only is important to reduce the dynamo output when no lighting is used. Experimental Test Report. A switchbox of this type has been fitted to Sg{Arthur F. Sidgreaves - MD}'s car 58-GN and on preliminary test at Derby operated satisfactorily. Road Test Report. Not yet available. Drawing No. Part List A Scrap and replace on all Chassis, 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. Weight of New Part. Difference per Car. Cost of Old Part. £0-0-10 Cost of New Part. £0-0-10 Difference per Car. £ none Cost of Parts in Works which will be scrapped if commenced on:- Series..........£..... Series..........£..... Series..........£..... Signature from Cost Dept. that above is correct. GRH 11/3/31 INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 13-5-31 | Agreed. Sg.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} | 18.1.31. | Agreed FHR. Personally I do not think this scheme worth the cost and complication. I cannot see exactly how it saves the dynamo sufficiently to make any practical difference. Also I have seen no report on my suggestion of the possibility of maintaining the rate of charge with speed, by using another position of third brush, probably no advantage in my suggestion but I should like it examined. WOR.{Arthur Wormald - General Works Manager} | 19.2.31. | Agreed Wor.{Arthur Wormald - General Works Manager} C. | 14.1.31. | Agreed C. RG.{Mr Rowledge} | 14.1.31. | Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 15.1.31. | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 13.1.31. | Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 16.1.31. | Should like road test before agreeing. E.{Mr Elliott - Chief Engineer} | 5.5.31. | Agreed AE. PN.{Mr Northey} | 27.1.31. | Agreed PN.{Mr Northey} HS.{Lord Ernest Hives - Chair} | 27.1.31. | Agreed Hs.{Lord Ernest Hives - Chair} [STAMP: PHANTOM II] [STAMP: Received 13 JAN 1931] | ||