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).
Modifications for Bentley Cylinder Heads.
| Identifier | ExFiles\Box 86\1\ scan0067 | |
| Date | 5th June 1934 | |
| T219 RHC.{R. H. Coverley - Production Engineer} Hs{Lord Ernest Hives - Chair}/CTS.{C. Trot Salt - Carburation}1/KW.5.6.34. BENTLEY CYLINDER HEADS. We are sending into the shop the latest cylinder head you have produced (Hs.{Lord Ernest Hives - Chair}1372). Will you please carry out the following modifications :- Scheme for preventing valves dropping in cylinder, incorporating Lec.3873-3933. Double valve springs, Lec.3297. Inner spring Hs.{Lord Ernest Hives - Chair}507. Outer " Hs.{Lord Ernest Hives - Chair}508. Hs{Lord Ernest Hives - Chair}/C.T.Salt. | ||