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).
Description of the operation of the Salerni lever mechanism.
| Identifier | ExFiles\Box 52\4\ Scan092 | |
| Date | 13th November 1930 | |
| X4510 13.11.30. OPERATION OF SALERNI LEVER MECHANISM. Fig.II shows normal position of clutch in and Salerni coupling engaged. Depressing the clutch pedal pushes the lever L against the rotor A and hence disengages the coupling. Releasing the pedal either brings the coupling back to position in fig.II or only as far as the free wheeling position of fig.I when the projection T on the lever E toggles over into the place of operation (At all other times it is entirely out of operation). Therefore, from this free wheeling position a further depression of the clutch pedal pushes the extension of L against T and hence engages the coupling. This has no effect on the rotor A, the lever L having passed the position of contact. The spring S usually choc-o-bloc allows the clutch pedal to return even when the lever L will not move due to the Salerni not being able to engage. In our case this spring is too strong and the clutch pedal does not return. HS {Lord Ernest Hives - Chair} /Gr. {George Ratcliffe} | ||