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 Goodrich endless canvas rubber fan belt to improve cooling system efficiency.
| Identifier | ExFiles\Box 14\7\ Scan050 | |
| Date | 11th July 1930 | |
| RR 788 REVISED (10H) (DG 348 19-7-29) SM. 6/643. COMPLETED 18.9.30. X7220 STANDARDISATION of CHASSIS PARTS. Date: 11.7.30. Description of Parts: GOODRICH ENDLESS CANVAS RUBBER FAN BELT. Origin: To improve the efficiency of the cooling system. Experimental Test Report: We have proved that this gives a better drive when spring loaded and stretches less. We recommend that it is run choc-a-bloc. Road Test Report: Run 10,000 miles on 23-EX. Brooklands tests shew improvement to cooling system. Weight of Old Parts: Weight of New Part: Difference per Car: PHANTOM II 20/25HP Cost of Old Part: £0-5-3 Cost of New Part: £0-2-6 (4/11) Difference per Car: £0-2-9 (Decrease 2/8) Signature from Cost Dept. that above is correct: GRT 4/9/30 L15/9/30 X No. 7220 5280 T95 Drawing No. Part List X - 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.........£......... Series.........£......... Series.........£......... INITIAL | DATE | REMARKS FW. SS.{S. Smith} | 16.9.30 | Agreed & subject to Rs{Sir Henry Royce's Secretary} remarks re non choc-a-bloc. R.{Sir Henry Royce} | 14.7.30 | Belt is agreed to be better than leather but I cannot agree to running it choc-a-bloc. The belt tension must be governed and maintained by spring. Also if necessary the spring can be made stiffer. We must be careful not to pass from something which is good and lasting though of less efficiency to something which requires more careful service. FHR. WOR.{Arthur Wormald - General Works Manager} | 11.9.30 | Agreed WoR.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} | 12.7.30 | Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 15.7.30 | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 14.7.30 | Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 4.8.30 | Agreed EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 14.7.30 | Agreed AE. PN.{Mr Northey} | 29.7.30 | Agreed as to belt, though running choc-a-bloc must entail wear and tear. CWB. | | Agreed C. HS.{Lord Ernest Hives - Chair} | | Agreed. [STAMPED] CANCELLED | ||