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).
Paper presented at a Society of Automotive Engineers meeting regarding the growing interest in vehicle direction signals.
| Identifier | ExFiles\Box 113\3\ scan0140 | |
| Date | 15th January 1940 | |
| 1001. PREPRINT.--Paper to be presented at the Annual Meeting of the Society of Automotive Engineers at the Book-Cadillac Hotel, Detroit, Mich., Jan. 15 to 19, 1940. Printed to stimulate written or oral discussion. Subject to revision. All papers presented at meetings of the Society are the exclusive property of the Society, from which permission to publish this paper, in full or in part, after its presentation and with credit to the author and the Society may be obtained upon request. The Society is not responsible for statements or opinions advanced in papers or discussions at its meetings. [Handwritten note: 16 circled] [Handwritten note: JHH re sealed beam lights] --- GROWING INTEREST IN DIRECTION SIGNALS --- -by- HARRY C. DOANE Electrical Engineer Buick Motor Division Flint, Michigan It has not been the intention in preparing this paper to burden you with a historical résumé of the development in this field. Patent records and various early publications indicate surprising initiative with regard to need for signals. It is rather the purpose of this paper to discuss some of the essential fundamentals, with particular reference to the several types of signals that appear to be of current interest. It is hoped that this discussion may be instrumental in crystallizing thought on this subject, with standardization, simplicity, and public acceptance as the final objective. In no other industry has there been shown the initiative and readiness to promote and adopt developments which supply a definite need. However, the need for an adequate means of indicating the driver's intention to turn has been present at least since the popular adoption of the closed car, and it seems logical that this development should have paralleled the stop signal which has been in general use as standard equipment on all cars for many years. This is even more strange when it is considered that the industry entered the gadget period several years ago, but until recently has been reluctant to step up to this most genuinely useful and needed piece of car equipment. | ||