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).
Scheme to operate two-tone wind horns by rocking the existing Klaxon button.
| Identifier | ExFiles\Box 59\3\ Scan340 | |
| Date | 2nd July 1935 | |
| r6066 WST To BY.{R.W. Bailey - Chief Engineer} from E.{Mr Elliott - Chief Engineer} E.2/HP.2.7.35. c.c. Hs.{Lord Ernest Hives - Chair} Hs{Lord Ernest Hives - Chair}/Wst. By/RD. re Two Tone Wind Horns. Referring to the above I am having a scheme made for utilising the present Klaxon button to give the two tones by rocking the button instead of having an extra changeover switch. This involves using a twin cable down the centre of the steering column, but it is believed that owing to the small size of the current necessary with this relay system a twin cable can be obtained and used which will be small enough to be accommodated within the existing space. BY/RD is proceeding with this forthwith at my request. E.{Mr Elliott - Chief Engineer} | ||