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 self-draining autovac float with larger stem and vent holes.
| Identifier | ExFiles\Box 56\1\ Scan013 | |
| Date | 14th July 1930 | |
| RR 788 REVISED (10H) (DG 348 19-7-29) BM. 6/643. COMPLETED 1.9.30. X5510. STANDARDISATION of CHASSIS PARTS. Date 14.7.30. Description of Parts. SELF-DRAINING AUTOVAC FLOAT WITH LARGER STEM & VENT HOLES. Origin. To enable self-draining action to cope with temperature effect which makes present self-draining float inoperative. Experimental Test Report. Self-draining action of float cannot be made to fall under considerably higher temperatures than ever attained on Road Test Report. Handwritten Note: This is not an actual alteration in design therefore road test is unnecessary. X No. 7510. Drawing No. 5510. 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. Cost of Parts in Works which will be scrapped if commenced on :- Series....£....... For Phantom & Series....£....... 20/25 HP. Chassis. Series....£....... Weight of Old Part. Weight of New Part. Difference per Car. Cost of Old Part. £ 1. 8. 0d. Cost of New Part. £ 1. 8. 0d. Difference per Car. £ Nil. Signature from Cost Dept. that above is correct. CN. {Mr Chamberain} G. {Mr Griffiths - Chief Accountant / Mr Gnapp} Agreed Wor. {Arthur Wormald - General Works Manager} [STAMP]: PHANTOM II CHASSIS 20/25 H.P. CHASSIS INITIAL | DATE | REMARKS BJ. Sg. {Arthur F. Sidgreaves - MD} | 28.8.30 | Agreed Sg. {Arthur F. Sidgreaves - MD} R. {Sir Henry Royce} | 22.7.30 | Agreed FHR. WOR. {Arthur Wormald - General Works Manager} | 18.7.30 | Agreed Wor. {Arthur Wormald - General Works Manager} RG. {Mr Rowledge} | 18.7.30 | Agreed Rg. {Mr Rowledge} DA. {Bernard Day - Chassis Design} | 19.7.30 | Agreed Da. {Bernard Day - Chassis Design} BY. {R.W. Bailey - Chief Engineer} | 18.7.30 | Agreed By. {R.W. Bailey - Chief Engineer} EP. {G. Eric Platford - Chief Quality Engineer} | 11.6.30 | Agreed EP. {G. Eric Platford - Chief Quality Engineer} E. {Mr Elliott - Chief Engineer} | 19.7.30 | Agreed AE. PN. {Mr Northey} | 29.7.30 | Agreed PN. {Mr Northey} CWB. | | Agreed C. HS. {Lord Ernest Hives - Chair} | | Agreed. | ||