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 paraffin waxed paper condenser, changing from .30mf to .23mf and adding a reinforced case bottom.
| Identifier | ExFiles\Box 171\2\ img001 | |
| Date | 5th October 1931 | |
| RR 785 (10M) (8459. 24-10-30) S/3185. ORIGINAL COMPLETED 26. 1. 32. STANDARDISATION of CHASSIS PARTS. Description of Parts. PARAFFIN WAXED PAPER CONDENSER OF .23 mf. CAPACITY INSTEAD OF .30 mf. AND WITH REINFORCED CASE BOTTOM. Origin. To improve the surface condition of the Tungsten contact points and maintain capacity constant over ranges of temperature. Also prevents damage to case when extracting condenser from distributor. Experimental Test Report. Bench test shows a less tendency for oxidation to occur on the points. Condenser capacity remains constant over a long period of time and does not increase with temperature. Completed 22,000 miles running on 25-EX. Point condition very satisfactory in view of the miles run. Drawing No. D.52453/4. Part List 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. £ Weight of New Part. Cost of New Part. £ Difference per Car. Difference per Car. £ Negligible Cost of Parts in Works which will be scrapped if commenced on :- Series..........£......... Series..........£......... Signature from Cost Dept. that above is correct. G/RO.{C. C. Rose - Export Manager}23.1.32. G.26.1.32. Wor.{Arthur Wormald - General Works Manager} INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 27. 1.32 | Agreed Sg.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} | 21/10/31 | Agreed SMR WOR.{Arthur Wormald - General Works Manager} | 16.10.31. | Agreed Wor.{Arthur Wormald - General Works Manager} C. | 17.10.31. | Agreed C. RG.{Mr Rowledge} | 19.10.31. | Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 19.10.31. | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 16.10.31. | Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 16.10.31. | Agreed EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 22.10.31. | Agreed AE. PN.{Mr Northey} | 19.10.31. | Agreed PN.{Mr Northey} HS.{Lord Ernest Hives - Chair} | | Agreed. STAMPED: PHANTOM II 26/25 H.P. | ||