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).
Official order for scraper and compression rings for Bentley engines.
| Identifier | ExFiles\Box 148\3\ scan0212 | |
| Date | 10th March 1937 | |
| 1256 To Roy.{Sir Henry Royce} from Rm{William Robotham - Chief Engineer}/Mths.{Reg Matthews} c. to G/Cam. Rm{William Robotham - Chief Engineer}/Mths.{Reg Matthews}9/AP.10.3.37. Will you please send an official covering order to The Light Production Co.Ltd., 60/66 Rochester Row, Westminster London S.W.1. for the following:- 24 High pressure (32.lbs/sq.in.) scraper rings suitable for 3 1/2" bore i.e. as previously supplied for 4 1/4 litre Bentley except that we require a ground finish on the periphery. 48 Compression rings for 4 1/4 Litre Bentley having 14.5 lbs/sq.in. wall pressure with ground finish and suitable for bores .005" oversize. Rm{William Robotham - Chief Engineer}/Mths.{Reg Matthews} | ||