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).
Compatibility and recommendation of the Folberth automatic windscreen wiper.
| Identifier | ExFiles\Box 23\3\ Scan085 | |
| Date | 1st August 1922 | |
| X1087 To BJ/Py. from Hs.{Lord Ernest Hives - Chair} Hs{Lord Ernest Hives - Chair}3/LG22. 8.22. AUTOMATIC WIND SCREEN WIPER. X4175 X1087(crossed out) The fact of making a connection from the induction pipe to the Folberth automatic windscreen wiper, will not interfere with the working of our engine. If the mechanism for operating the wiper leaks and is left in operation, it may interfere, especially with the slow running. As long as there is, however, a reliable cock in the circuit to shut the wiper off, there should be no trouble. We do not recommend the Folberth wiper, although we appreciate that under exceptional conditions, it is a distinct advantage. Hs.{Lord Ernest Hives - Chair} | ||