Officially Approved Head-lamp Masks
Page 21
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WHEN sufficient quantities of the new head-lamp cowl, IT conforming with the latest official specification, are availlble, their use, it was recently stated, will be made compulsory. In our issue dated October 7 we described the regulation device, and now we are in a position to publish particulars of a variety of masks already in production.
At the time of writing we understand that the new Order regulating the use of head lamps stipulates that the mask must be fitted to the off-side lamp and that the bulb of the near-side lamp must be removed, but it seems possible that :his may be modified to allow drivers to mask and extinplish respectively whichever lamps they prefer.
We give below brief outlines of the cowls offered by four makers, taking them in alphabetical order. The main :eatures and dimensions are common to all, and the former :an be seen from the accompanying drawing, made by a it& artist, of one of these selected without prejudice. All eppear to be of high quality, to conform precisely with the )fficial specification and to be made for easy fitting.
Butlers, Ltd., Atlantic Works, Grange Road, Birminglam, produces a mask named the Atlantic. It is composed vholly of steel, with the exception of the diffusion screen :which is of non-inflammable material), and is rendered :orrosion resistant. Like the others it is finished internally and externally in black, and the slots in both back and front
plates are ?-oin. wide, whilst the diameter of the cylindrical portion is 5 ins. and the length 3 ins.
Joseph Lucas, Ltd., Great King Street, Birmingham, offers a combined shield and lamp rim, which takes the place of the existing front and glass. It is said to be particularly suitable for lamps with domed front glasses. Another model is also available in which no replacement rim is incorporated. In this case the back plate is marked with concentric rims of the diameters of standard glasses, and may need to be cut to the appropriate mark. To fit it suitable packing may be needed. Prices range from 5s. to 9s 6d.
Messrs. Middlesex Products, Station Road, Harrow, Middlesex, make a neat and strong cowl with six sizes of back plate (64 ins. to 1041 ins.) for fitting in place of the glass. A feature is the recessing of the main portion into the back plate. To simplify fitting, wooden packing blocks of special shape are provided, which are positioned under the existing retaining springs to make up for the thickness of the glass removed. The-price is 5s.
Trico Folberth, Ltd., Great West Road, Brentford, markets a sturdily constructed mask, which is easily fixed in place and is manufactured in standard and non-standard back-plate sizes. Of the former there are five, ranging from 64 ins. to 84 ins., and the price of these is 5s. each. Nonstandard sizes cost a small sum extra.