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).
The correct position and movement for the horn button on Bentley cars.
| Identifier | ExFiles\Box 87\5\ scan0119 | |
| Date | 10th August 1933 | |
| X250. To BY: from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}5/KT.10:8:33. BENTLEY-POSITION OF HORN BUTTON & HORN BUTTON MOVEMENT. There has been a certain amount of criticism with regard to the horn on Bentley cars, owing to the fact that the button does not stand sufficiently far above the surrounding pressing. We have made some tests experimentally and think that the crown of this button should be .150" above the surrounding dome, and that the travel of the button should be .040". We should like the limit of .150" to be held closely. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||