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).
With a sketch reviewing coupling designs, suggesting modifications to the 'Sellers pattern' and critiquing other work.
| Identifier | Morton\M7\ img005 | |
| Date | 1st April 1924 guessed | |
| (3) I have examined one or two other designs of coupling but their seems nothing better than this Sellers pattern. I have thought that we need not go to any expense in making it convenient to remove, perhaps if we were to bore a larger cross hole say 3/4" or 1" we could insert a taper wedge or wedges that would drive out the bushes or shafts. You will see that I do not recommend our drawing in and say as an improvement possible, it seems easy to double the grip from your model. I am convinced that poor mechanical work is the cause of our | ||