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HIGHWAY ENGINEERS' REFERENCE BOOK 1947

MANUFACTURERS' DATA

ELECTRIC LIGHTING

THE BRITISH THOMSON-HOUSTON CO. LTD., LONDON, W.C.2

The period of intensive research on street lighting problems which started with the end of the war has resulted in hte production of some entirely new lanterns by the British Thomson-Houston Co., Ltd.
THE MAZDALUX STYLIZED RANGE OF SIDE-ENTRY LANTENRS
A new series of Mazdalux Side-Entry lanterns has been designed to meet the demand for a complete range of lanterns accommodating every type and size of vertically operated Mazda and Mercra street-lighting lamp. This new "Stylized" range consists of sixteen lanterns and, for the first time, lanterns with a uniform appearance can be installd throughout an entire city and on all the roads leading to it. The varied requirements of such locations as shopping centres, side streets and car parks are all catered for in difference of size, glassware and types of lamp. The shape and apperance of the lantern have been carefully designed to blend well with all types of surroundings and to match both steel and concrete standards.
THE MAZDALUX HORIZONTAL ENCLOSED LANTERN
This is another street lighting lantern which is the product of past-experience and recent research. The main feature of this new lantern are a first class optical performance and fine appearance combined with very simple erection and maintenance. Magnetic arc control enables the standard type of vertical-burning Mercra lamp to be used in a horizontal position. The well-known BTH principle of controlled cut-off is employed to give constant visual accommodation and a minimum of glare. This allied to the horizontal light source, gives the maximum continuity of road brightness and optimum seeing conditions.
FLUORESCENT STREET LIGHTING
The British Thomson-Houston Co., Ltd. is also experimenting with an entirely new form of street lighting Mazda 5-ft. 80 watt fluorescent lamps in specially designed lanterns have been used for experimental street lighting installations with most encouraging results.

Noteworthy features of the new lighting are its remarkable freedom from glare and its specially pleasing character which does not distort natural colours.

The lanterns can be conveniently suspended on wires stretching across the street between buildings, and street standards, which are undesirable obstacles on busy pavements, can in many cases be dispensed with.

Fluorescent street ligthing gives such excellent visibiltiy that it should do much to reduce accidents after dark and may well revolutionize all accepted ideas and methods of street lighting.

The BTH Lighting Advisory Service is available to all concerned with street lighting projects.