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 modified butterfly throttle angle and controls to prevent sticking and clear the bonnet.
| Identifier | ExFiles\Box 171\1\ img068 | |
| Date | 20th November 1926 | |
| RR 755 REVISED (10H) (DE 444 6-10-26) BM. ORIGINAL COMPLETED 13.12.26 STANDARDISATION of CHASSIS PARTS. Date 20.11.26 X No. 8080 8240 Drawing No. Part List Description of Parts. MODIFIED ANGLE TO BUTTERFLY THROTTLE & MODIFIED CONTROLS TO CLEAR BONNET. Origin. To prevent throttle sticking and damage to controls. Experimental Test Report. We have frequent complaints of the throttle sticking - the increased angle will reduce this. The modification to controls is to avoid damage if the bonnet is closed with the mixture lever in the strong position. Road Test Report. Fitted to 8-EX. It is very convenient to bring in the roller bearing throttle altered angle of butterfly and altered controls at the same time because they each demand modification to same piece on the carburetter. [Overlaid green stamp: PHANTOM] 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. £ 5. 8s. 3d. Weight of New Part. Cost of New Part. £ 6. 9s. 7d. Difference per Car. Difference per Car. £ 1. 1s. 4d. increase. Signature from Cost Dept. that above is correct. My/Rb.{R. Bowen} 8.12.26 Cost of Parts in Works which will be scrapped if commenced on :- Series.......£....... Series.......£....... Series.......£....... Approval Table: INITIAL | DATE | REMARKS BJ. | 13.12.26 | Agreed. B.Johnson. R.{Sir Henry Royce} | 22/11/26 | Agreed WR [Handwritten] WOR.{Arthur Wormald - General Works Manager} | 22.11.26 | Agreed. Wor.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} | 22.11.26 | Agreed. Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 25.11.26 | Agreed. Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 22.11.26 | Agreed. BY.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 25.11.26 | Agreed. EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 25/11/26 | Agreed OE [Handwritten] PN.{Mr Northey} | 23.11.26 | Agreed. PN.{Mr Northey} CWB. | 23.11.26 | Agreed. CWB. HS.{Lord Ernest Hives - Chair} | 22.11.26 | agreed. Hs.{Lord Ernest Hives - Chair} | ||