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).
The use of R.R. Brake Drum Cast Iron for all new brake drums sent for testing and standardisation.
| Identifier | ExFiles\Box 120\1\ scan0208 | |
| Date | 3rd September 1937 | |
| + 1028. To. By/CRL.{C. R. Lisson} from Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale} c. RHC.{R. H. Coverley - Production Engineer} c. HPS.{Horace Percy Smith - Experimental Factory Mgr} c. RHC{R. H. Coverley - Production Engineer}/Vs.{J. Vickers} Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale}6/MH.{M. Huckerby}3.9.37. BRAKE DRUMS - ALL CARS. When any new brake drum is detailed and instructed to the Experimental for test purposes, will you please see that the cast iron specified is R.R. Brake Drum Cast Iron. This applies both to solid iron drums and to the iron liners of aluminium drums. Will RHC{R. H. Coverley - Production Engineer} please note that even if there are no troubles encountered with this iron it will inevitably take us some time to test it on all cars; but we will do what we can to expedite standardisation. Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale} | ||