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, proposing a change from fibre to bakelized linen.
| Identifier | ExFiles\Box 172\1\ img055 | |
| Date | 21th January 1924 | |
| R.R. 755 (10M) (SL 72 18-7-23) MP 274954a. ORIGINAL COMPLETED 4.3.24. STANDARDISATION of CHASSIS PARTS. Date 21.1.24. Description of Parts. FRICTION DISCS FOR SLIPPER WHEEL. X No. 4244 Drawing No. Part List 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 Hs{Lord Ernest Hives - Chair}1/LG4.1.24. Road Test Report. Fitted to 6-G-11 - run 2000 miles. Fitted to 3-G-11 - run 1800 miles. Fitted to 20 HP. test engine for 65 hours. [Decision 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. Weight of Old Part. Cost of Old Part. £ 2/4d Weight of New Part. Cost of New Part. £ 2/11d. Difference per Car. Difference per Car. £ 2/8¾ increase. Cost of Parts in Works which will be scrapped if commenced on FORUM 11/- Series...£... Series...£... Series...£... Signature of Mr. De LOOZE that above is correct. NV/JW 24.1.24. SIGNATURES, DATE, REMARKS MR. JOHNSON, 3.3.24, Agreed. C.J. MR. B. JOHNSON, 3.3.24, Agreed. B.J. MR. ROYCE, 12/2/24, Agreed FRR 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. MR. ELLIOTT, 26.1.24, Agreed subject to 10,000 miles or equivalent test. MR. NORTHEY, 24.1.24, Agreed. PN.{Mr Northey} MR. HIVES, 20.2.24, Agreed. E.Hives. | ||