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).
Blueprint for a rubber joint ring and liner top flange, designated PH III.
| Identifier | ExFiles\Box 93\4\ scan0093 | |
| Date | 7th December 1936 | |
| LEC 5415 3.690 DIA. +2 .025 R 3.535 DIA. -2 15° .075 .075 DIA. 3.375 DIA. RUBBER JOINT RING THIS DESIGN IS IN ACCORDANCE WITH MEMO. RHC.{R. H. Coverley - Production Engineer}/SS.{S. Smith} 2/MJ 16.11.36 ROLLS-ROYCE, LTD. PRINT ROOM DEC 7 1936 DERBY SCALES 1/2 & 1/1 RUBBER JOINT RING, LINER TOP FLANGE PH III JOPHughes 4-12-'36 LEC 5415 | ||