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).
Two designs for drilled up connecting rods for the Bentley and 20-HP models.
| Identifier | ExFiles\Box 103\2\ scan0184 | |
| Date | 5th July 1933 | |
| COPY. X5030 To RHC.{R. H. Coverley - Production Engineer} from E/JNR.{Charles L. Jenner} E/JNR.{Charles L. Jenner}5/HP.5.7.33. c. Hs.{Lord Ernest Hives - Chair} Drilled up Connecting Rods. We send you herewith: LeC.3559 showing two designs for the Bentley and 20-HP connecting rods. Will you please have one model of each made up for our inspection. Scheme No.1 is the easier to produce, and also there is no difficulty with scheme No.2 but it involves a shaped cutter which might be considered to have a short life. The latter scheme gives us a rod with the minimum amount of material in the stem. It will be understood that owing to our recent failures with oil pipes we are anxious to get these rods moving. E/JNR.{Charles L. Jenner} | ||