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).
Electrical connection of the positive end of the cutout shunt coil to dynamo terminal C instead of B.
| Identifier | ExFiles\Box 65\2\ scan0183 | |
| Date | 5th September 1928 | |
| RR 755 REVISED (10H) (D.C. 777 - 29 - 2 - 28) Mᶜ C. Lᵀᴰ 47740 COMPLETED 9.5.29 STANDARDISATION of CHASSIS PARTS. Date 5.9.28. Description of Parts. ELECTRICAL CONNECTION OF POSITIVE END OF CUTOUT SHUNT COIL TO DYNAMO TERMINAL C. INSTEAD OF B. X No. 7740 Drawing No. Part List Origin. To avoid possibility of over-voltage on shunt coil if main dynamo fuse is removed or fails. Experimental Test Report. We have established experimentally that this method of connection is also better than standard from the point of view of destruction of cutout contact points. Detailed reasons and observations are contained in our notes FC4/T16.5.28. Road Test Report. Run 8000 miles on 11G3. " 7000 " " 8-EX " 12500 " " 14-EX. No trouble, and cutout contact points all in good condition. 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. Weight of New Part. Difference per Car. Cost of Old Part. £ Cost of New Part. £ Difference per Car. £ negligible Signature from Cost Dept. that above is correct. GRL 2/5/29. Waby 4/5/29. Cost of Parts in Works which will be scrapped if commenced on :- Series.........£....... Series.........£....... Series.........£....... INITIAL DATE REMARKS SG.{Arthur F. Sidgreaves - MD} 9-5-29 Agreed SG.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} 11.9.28 Agreed FHR. WOR.{Arthur Wormald - General Works Manager} 6.9.28 Agreed. Wor.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} 7.9.28. Agreed. Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} 6.9.28. Agreed. Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} 5.9.28. Agreed. By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} 11.9.28. Agreed. EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} 11.9.28. Agreed. E.{Mr Elliott - Chief Engineer} PN.{Mr Northey} 7.9.28. Agreed. PN.{Mr Northey} CWB. 25.9.28 Agreed. CWB. HS.{Lord Ernest Hives - Chair} 5.9.28 Agreed. Hs.{Lord Ernest Hives - Chair} | ||