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 the battery ignition contact breaker rubbing block of bone grey fibre.
| Identifier | ExFiles\Box 69\1\ scan0395 | |
| Date | 21th July 1925 | |
| RR 755 (10M) (SL391 2-11-23) MP 281297 X.4646 COMPLETED 14.8.25. STANDARDISATION of CHASSIS PARTS. Date 21.7.25. Description of Parts. BATTERY IGNITION CONTACT BREAKER RUBBING BLOCK OF BONE GREY FIBRE. X No. 4646 Drawing No. Part List Origin. To lessen wear. Experimental Test Report. Bone grey fibre is being used by a large number of makers for a rubbing material. There is less wear compared with continental bakelite when run short of oil. See EFC3/T1.7.25. Road Test Report. Run 12,239 miles on 6-G-11. Run 11,122 miles on 5.EX. No trouble - wear negligible 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. £ Weight of New Part. Cost of New Part. £ Difference per Car. Difference per Car. £ Negligible. Cost of Parts in Works which will be scrapped if commenced on :- Series..........£......... Series..........£......... Series..........£......... Signature of Mr. De LOOZE that above is correct. My/Rns. 24.7.25. SIGNATURES DATE REMARKS MR. JOHNSON 13 8 25 agreed C W Johnson MR. B. JOHNSON 11.8.25 agreed MR. ROYCE 24.7.25 Agreed. FHR. MR. WORMALD 21.7.25 Agreed. Wor.{Arthur Wormald - General Works Manager} MR. ROWLEDGE 21.7.25 Agreed. Rg.{Mr Rowledge} MR. DAY 22.7.25 Agreed. Da.{Bernard Day - Chassis Design} MR. BAILEY 22.7.25 Agreed. BY.{R.W. Bailey - Chief Engineer} MR. PLATFORD 21.7.25 Agreed. EP.{G. Eric Platford - Chief Quality Engineer} MR. ELLIOTT 24.7.25 Agreed. E.{Mr Elliott - Chief Engineer} MR. NORTHEY 23.7.25 Agreed. PN.{Mr Northey} MR. HIVES 24.7.25 Agreed. E.Hives. CHASSIS RECEIVED J.S. 11 AUG 1925 | ||