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).
Potential failures of a Borg & Beck clutch and a request to ensure the company's own design is stronger.
| Identifier | ExFiles\Box 129\2\ scan0038 | |
| Date | 13th April 1935 | |
| To Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} X2200 Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}5/KW.13.4.35. Please see Design about the attached letter from Borg & Beck. We have casually heard that there have been a great many cases of the driven member breaking the rivets by which it is attached to the hub. The first indication of this is that the clutch will not free, and if action is not taken total failure ultimately occurs. I should like you to ensure that their design is at least as strong as ours at this point. HS{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer} Att: Letter dated 8.4.35. Finished with See Dudy // HP 18-4-35 Hdy{William Hardy} | ||