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 procurement of piston rings, bearings, and filters from various suppliers for trial.
| Identifier | ExFiles\Box 136\3\ scan0046 | |
| Date | 11th May 1939 | |
| 1139, 1258-1020. To Roy.{Sir Henry Royce} from Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} c.c. G/JWH. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}8/MH.{M. Huckerby}11.5.39. Will you please pass an official order to Hepworth & Grandage Ltd. for the following rings we have received for trial. 17 Piston rings (Phormicast parallel face). 14 " " cornered). 12 " " (Scrapers). O/N.52444. Further to our recent order of bearings from Vandervell Products Ltd., will you please add the following:- 12 complete intermediate main bearings in Babbit material in accordance with the layout L.1118 suitable for cast-iron crankcase 2.902 housing bore and 2.75 dia. journal crank. These should not be confused with our recent order which are for 2.9105 bores. Additional to the above, will you please order 6 "General" filters complete with cradle EB.4171 and elements from the British Filters Ltd., Market Harboro'. O/N.52482. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||