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).
Instructions regarding the sound, pitch, and installation of a vehicle horn, comparing it to Klaxon and Sparton models.
Identifier | ExFiles\Box 59\3\ Scan060 | |
Date | 8th December 1924 | |
RR 238 (150 BKS.) (DB{Donald Bastow - Suspensions} 461-8-12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To Order No. Customer's No. 3 slightly to about 320 per sec. The note is always very clear. The current found is more than that of the bigger Klaxon but a little less than that of the Sparton. The note is of somewhat higher pitch than either. The horn is intended to be put on 16SV. It should be very effective provided it does not cause fittings to vibrate when sounded as the Sparton is reported to have done. Signed H.A. This Sheet must be filed on completion of the work. | ||