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 friction discs for the slipper wheel, replacing fibre with dilecto or bakelized linen.
| Identifier | ExFiles\Box 74\2\ scan0368 | |
| Date | 21th January 1924 | |
| R.R. 755 (10H) (SL 72 18-7-23) MP 274954s. 4244 COMPLETED 4.3.24. STANDARDISATION of CHASSIS PARTS. Description of Parts. FRICTION DISCS FOR SLIPPER WHEEL. Origin: To avoid using fibre. Experimental Test Report: We have had numerous failures on cars owing to fibre washers absorbing moisture and swelling. We have been testing dilecto or bakelized linen - we find this is very successful. See report Hsl/LG4.1.24. Road Test Report: Fitted to 6-C-11 - run 2000 miles. Fitted to 3-C-11 - run 1600 miles. Fitted to 20HP. test engine for 65 hours. Weight of Old Part. £ Cost of Old Part. 2½d.{John DeLooze - Company Secretary} Weight of New Part. £ Cost of New Part. 2/11d. Difference per Car. £ Difference per Car. 2/8½ increase. Signature of Mr. De LOOZE that above is correct. My/JW 24.1.24. Date 21.1.24. X No. 4244 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: forthwith 11/- Series... £... Series... £... Series... £... SIGNATURES, DATE, REMARKS MR. JOHNSON, 3/3/24, agreed GJohnson MR. B. JOHNSON, 3.3.24, agreed MR. ROYCE, 12.2.24, Agreed. FHR. MR. WORMALD, 22.1.24, Agreed. Wor.{Arthur Wormald - General Works Manager} MR. ROWLEDGE, 23.1.24, Agreed. Rg.{Mr Rowledge} MR. DAY, 24.1.24, Agreed subject to further tests being satisfactory. One thinks this should be 10,000 miles. MR. BAILEY, 23.1.24, Agreed. BY.{R.W. Bailey - Chief Engineer} MR. PLATFORD, 23.1.24, Agreed - suggest commence use as soon as available - scrap present stock. EP.{G. Eric Platford - Chief Quality Engineer} MR. ELLIOTT, 26.1.24, Agreed subject to 10,000 miles or equivalent test. E.{Mr Elliott - Chief Engineer} MR. NORTHEY, 24.1.24, Agreed. PN.{Mr Northey} MR. HIVES, 20.2.24, Agreed. E.Hives. | ||