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 chassis parts for an improved silent direct drive engagement and roller spigot bearing.
| Identifier | ExFiles\Box 171\1\ img085 | |
| Date | 19th January 1927 | |
| RR 755 REVISED (10M) (DE.444 6-10-26) BM. ORIGINAL COMPLETED 11.2.27 STANDARDISATION of CHASSIS PARTS. Date 19.1.27 Description of Parts. IMPROVED SILENT DIRECT DRIVE ENGAGEMENT & ROLLER SPIGOT BEARING. Origin. To facilitate changing into direct gear. Experimental Test Report. The scheme is to use an internal gear in place of direct drive jaws. This is similar to the scheme on the 20 HP. and all modern Phantom gearboxes. Road Test Report. Fitted to 14-EX. It is noticeably easier to change gear. 10,000 miles will be completed before any cars are delivered. X No. 8310 Drawing No. LeC. 2111 Part List G.7 4627 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. £ 6. 9. 9d. Weight of New Part. Cost of New Part. £ 6. 15. 8d. Difference per Car. £ 5. 11d. increase. Signature from Cost Dept. that above is correct. My/Rb.{R. Bowen} 28.1.27 Cost of Parts in Works which will be scrapped if commenced on :- Series.........£....... Series.........£....... Series.........£....... INITIAL | DATE | REMARKS BJ. | 11.2.27 | Agreed. B. Johnson Subject to it proving OK. on 10,000 miles test. R.{Sir Henry Royce} | 22/1/27 | Agreed FHR WOR.{Arthur Wormald - General Works Manager} | 20.1.27 | Agreed. Wor.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} | 10.2.27 | Agreed. RG.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 21.1.27 | Agreed. Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 20.1.27 | Agreed. BY.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 19.1.27 | Agreed. EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 20.1.27 | Agreed. E.{Mr Elliott - Chief Engineer} PN.{Mr Northey} | 20.1.27 | Agreed. PN.{Mr Northey} (I do not understand 'A' above) CWB. | 20.1.27 | Agreed. CWB. Hs.{Lord Ernest Hives - Chair} | 19.1.27 | Agreed. Hs.{Lord Ernest Hives - Chair} | ||