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).
Reprinted article from 'The Motor' magazine describing two new Bosch lamps for fog and long-distance night driving.
| Identifier | ExFiles\Box 167\1\ img037 | |
| Date | 16th June 1936 | |
| Reprinted from The Motor June 16, 1936. Two New Bosch Lamps Well made and of good appearance. General - purpose Component, Valuable in Fog, and a Long-range Lamp for High-speed Night Driving (Above) The fog lamp, and (left) the long-distance lamp. TWO new lamps of interesting design have been brought out by Bosch, Ltd., of Larden Road, Acton, London, W.3. One of these, known as the type NE.170, is intended for general purposes, including use in fog. It is beautifully finished in black enamel and chromium, and projects a flat-topped beam with a very clean cut-off. The light is widely spread so as to pick up both sides of the road. This lamp is available in two forms, of which the first has a fixed reflector. The alternative, intended for keen drivers who go out in all weathers, is fitted with a dipping reflector of the electrically controlled type. This is found to be effective in very dense fogs. Quite apart from the value of this lamp in foggy weather, the anti-dazzle beam is admirably suited to driving at moderate speeds in the country or in poorly lit suburban streets. The spread of light at a low level picks up hidden obstacles and is helpful on bends and corners. Constructional features include easy access to the bulb without disturbing the reflector. The degree of accuracy in manufacture is such that no focus adjustment is needed. The light is thrown back from the filament to the reflector by a silvered cup. The second lamp, also illustrated on this page, is known as the type EF.170, and is intended for fast night driving on main roads. It projects a narrow, long-distance beam which supplements the spread of light from the normal headlamps by picking up objects at long range. This lamp can be so wired that when the normal head-lamps are dipped the long-distance beam is deflected to the left. Consequently, oncoming drivers are not dazzled, but a disconcerting change in the intensity of road illumination is avoided. It is for this reason that a dipped beam is favoured in place of the alternative plan of blacking out the auxiliary lamp. The dipping reflector available for the fog lamp, showing how the bulb is inserted from the back. The prices are 52s. 6d. for the fog lamp, 77s. 6d. for the same lamp with dipping reflector, and 84s. for the long-distance lamp. In each case bulb and bracket are included. "All-chromium" can be had at slightly higher prices. Every detail of these lamps is beautifully made in the style expected of Bosch products. We are giving them a thorough trial on one of our staff cars, after which we shall be able to report further upon their performance. Temple Press Ltd., 5-17, Rosebery Avenue, E.C.1. | ||