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 report for straight-sided tyres with cord fabric on chassis.
| Identifier | ExFiles\Box 45\1\ Scan240 | |
| Date | 20th June 1921 | |
| R R 766 (S H) (S H 788, 20-9-20) G 8564 X4050 COMPLETED 6.8.21. STANDARDISATION of CHASSIS PARTS. Date 20.6.21. X No.40/50 Drawing No. Part List Description of Parts. Straight-sided tyres with cord fabric. Origin. Improvement adopted by tyre manufacturers. Experimental Test Report. Advantages. 1. Great mileage. 2. Freedom from bursts. 3. Less effort to change a tyre. 4. No security bolts necessary. 5. Tyre can be run with lower pressure. Road Test Report. Total mileage on experimental cars - 23,000. Used on all cars in U.S.A. Action options: 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. Signature of Exp. Dept. that above is correct. E.{Mr Elliott - Chief Engineer} Hives. Weight of Old Part. Cost of Old Part. £ 40. 7. 4 per set of 4 £ 50. 9. 2 per set of 5 Weight of New Part. Cost of New Part. £ 45. 16. 4 per set of 4 £ 57. 5. 5 per set of 5 Difference per Car. Difference per Car. £ 5. 9. 0 per set of 4 £ 6. 16. 3 per set of 5 Cost of Parts in Works which will be scrapped if commenced on:- Series..........£...... Series..........£...... Series..........£...... Storekeeper advised re above: Storekeeper's Signature. Signature of Mr. De LOOZE that above is correct. D/Rd. 20.7.21. SIGNATURES | DATE | REMARKS Mr. JOHNSON | 21.7.21 | Agreed. C.Johnson. Mr. B. Johnson. | 25.7.21 | Agreed. B.Johnson. Mr. ROYCE | 25.7.21 | Agreed. FHR. Mr. WORMALD | 20.7.21 | Agreed. Wor.{Arthur Wormald - General Works Manager} Mr. BARRINGTON | 22.6.21 | Agreed. BN.{W.O. Bentley / Mr Barrington} Mr. DAY | 23.6.21 | I agree. Da.{Bernard Day - Chassis Design} Mr. BAILEY | 21.6.21 | Agreed. BY.{R.W. Bailey - Chief Engineer} Mr. PLATFORD | 27.6.21 | Agreed on behalf of E.P. away in U.S.A. J.A.Maddocks. Mr. NORTHEY EWT for R.R. Inc. | 1.7.21 | Agreed. PN.{Mr Northey} | ||