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).
Proposed design for the operation of the wind tone horn.
| Identifier | ExFiles\Box 59\3\ Scan363 | |
| Date | 6th November 1935 | |
| WST BY AW. [AW is crossed out] c. Hs{Lord Ernest Hives - Chair}/Wst. 16066. BY/7/C. 6.11.35. WIND TONE HORN OPERATION. Mr. West has designed a method by which on the above horns, if the button is depressed in line with the axis of the column, the full loud tone is produced. This method of operation is exactly how one presses the button in an emergency. Mr. West attains his object by an additional winding, and I would like you to put in a provisional to cover Mr. West's scheme - he will explain the matter fully. By BY.{R.W. Bailey - Chief Engineer} | ||