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 modified dust covers for rear brakes to prevent stone and grit ingress.
| Identifier | ExFiles\Box 66\5\ scan0044 | |
| Date | 10th December 1925 | |
| RR 755 (10H) (SL391 2-11-23) MP 281297 STANDARDISATION of CHASSIS PARTS. +8360 COMPLETED 14.1.26. Date 10.12.25 Description of Parts. MODIFIED DUST COVERS FOR REAR BRAKES. Origin. To prevent small stones and grit getting into brakes. Experimental Test Report. We have received complaints of small stones getting between brake drums and dust cover and causing considerable noise. The modified design should prevent this. BJ [initials] Road Test Report. Fitted to 8-EX - run 10,000 miles in France. No troubles. Fitted to 11-EX car. Recommended for standardisation. Weight of Old Part. Weight of New Part. Difference per Car. Negligible. Signature of Mr. De LOOZE that above is correct. SIGNATURES | DATE | REMARKS --- | --- | --- MR. JOHNSON | 13 Jan | agreed CJohnson [handwritten] MR. B. JOHNSON | 13.1.26 | after of [handwritten] MR. ROYCE | 18.12.25 | Agreed. F.H.R. MR. WORMALD | 10.12.25 | Agreed. Wor. {Arthur Wormald - General Works Manager} MR. ROWLEDGE | 11.12.25 | Agreed. Rg. {Mr Rowledge} MR. DAY | 12.12.25 | Agreed. Da. {Bernard Day - Chassis Design} MR. BAILEY | 10.12.25 | Agreed. BY. {R.W. Bailey - Chief Engineer} MR. PLATFORD | 10.12.25 | Agreed. EP. {G. Eric Platford - Chief Quality Engineer} MR. ELLIOTT | 14.12.25 | Agreed. E. {Mr Elliott - Chief Engineer} MR. NORTHEY | 11.12.25 | Agreed. EN. MR. HIVES | 12.1.26 | Agreed. E.Hives. [Right side box] X No. 8360 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 Cost of Parts in Works which will be scrapped if commenced on:— Series...... Series...... Series...... [Stamp] Received NOV 1926 | ||