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 new Dunlop jack for road wheels to suit low pressure tyres.
| Identifier | ExFiles\Box 48\1\ Scan037 | |
| Date | 8th September 1927 | |
| RR 755 REVISED (10H) (DE444 6-10-26) BM. COMPLETED 28.9.27 STANDARDISATION of CHASSIS PARTS. Date 8.9.27 Description of Parts. JACK FOR ROAD WHEELS. Origin. Improved range to suit low pressure tyres. Experimental Test Report. The present Michelin Jack supplied with the Phantom has not sufficient range for low pressure tyres. The proposed new Dunlop Jack has a much greater range. Road Test Report. Tested on several cars. Has been returned to Dunlops several times to have faults corrected. These have been carried out. Has been inspected and approved by Sales. [Right Side Box] X No. 4124 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 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. £ 13/10 Weight of New Part. Cost of New Part. £ 19/6 Difference per Car. Difference per Car. £ 5/8 increase Signature from Cost Dept. that above is correct. G {Mr Griffiths - Chief Accountant / Mr Gnapp} /R 24/9/27 Cost of Parts in Works which will be scrapped if commenced on:- Series.........£....... Series.........£....... Series.........£....... [Approval Table] INITIAL | DATE | REMARKS BJ. | 28.9.27 | Agreed BJ R. {Sir Henry Royce} | 10.9.27 | Agreed. FHR., but should like to see the final one. WOR. {Arthur Wormald - General Works Manager} | 8.9.27 | Agreed. Wor. {Arthur Wormald - General Works Manager} RG. {Mr Rowledge} | 14.9.27 | Agreed. RG. {Mr Rowledge} DA. {Bernard Day - Chassis Design} | 10.9.27 | Agreed. DA. {Bernard Day - Chassis Design} BY. {R.W. Bailey - Chief Engineer} | 9.9.27 | Agreed. BY. {R.W. Bailey - Chief Engineer} EP. {G. Eric Platford - Chief Quality Engineer} | 8.9.27 | Agreed. EP. {G. Eric Platford - Chief Quality Engineer} E. {Mr Elliott - Chief Engineer} | 11.9.27 | Agreed. E. {Mr Elliott - Chief Engineer} Should like to see this Jack fitted with a handle winder. PN. {Mr Northey} | | CWB. | 15.9.27 | Agreed. CWB. Hs. {Lord Ernest Hives - Chair} | 8.9.27 | Agreed. Hs. {Lord Ernest Hives - Chair} [Stamp] PHANTOM | ||