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 a battery ignition contact breaker rubbing block made of bone grey fibre.
| Identifier | ExFiles\Box 172\3\ img083 | |
| Date | 21th July 1925 | |
| COMPLETED 14.8.25 STANDARDISATION of CHASSIS PARTS. Date 21.7.25 X No. 4646 Description of Parts. BATTERY IGNITION CONTACT BREAKER RUBBING BLOCK OF BONE GREY FIBRE. 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. [Decision Box C is ticked] C Scrap present stock and replace on all Chassis not yet handed to test. Weight of Old Part. Cost of Old Part. £ Weight of New Part. Cost of New Part. £ Difference per Car. Difference per Car. £ Negligible. Signature of Mr. De LOOZE that above is correct. MV/Rms. 24.7.25. SIGNATURES | DATE | REMARKS MR. JOHNSON | 13.8.25 | Agreed. C.Johnson. MR. B. JOHNSON | 11.8.25 | Agreed. B.J. 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 | 26/7/28 | Agreed CE MR. NORTHEY | 23.7.25 | Agreed. PN.{Mr Northey} MR. HIVES | 24.7.25 | Agreed. E.Hives. [Circular Stamp] ACTION ON CHASSIS | ||