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).
Evaluation of Bosch and Klaxon buzzer type horns, proposing to fit a preferred Bosch model for testing.
| Identifier | ExFiles\Box 59\3\ Scan102 | |
| Date | 2nd January 1931 | |
| X.6031. To Sg.{Arthur F. Sidgreaves - MD} from EFC. c. Wor.{Arthur Wormald - General Works Manager} EFC1/AD2.1.31. X.6031. BUZZER TYPE HORNS. X.6074. We have duly received the Bosch and Klaxon vibrator type horns referred to in the last paragraph of your Sg{Arthur F. Sidgreaves - MD}19/E22.12.30. We have previously looked upon the Bosch horn as having been considered satisfactory and therefore as a model for our own requirements. We find that there is a difference between the latest type Bosch horn UK.12A and the one you have returned (UK.12), this difference being in favour of the newer UK.12A horn. In the circumstances, the course it would appear desirable to take is to put this other Bosch horn on your car which is at present in our experimental garage. We await your agreement to this. Our efforts in the direction of getting a more suitable horn are much assisted if we have a definite model to which to work. EFC. | ||