The Accessory and Supply Exhibits.
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Ave1ing. Stand No. 51.
The Aveling " glassless " weather screen is shown to excellent advantage on this stand. The driver's canopy portion of an industrial vehicle to which the device is attached enables one at once to set the screen as for actual driving conditions. The outfit consists of a strongly-built wood frame, which is capable of swinging on pivots located at the centre of the canopy uprights. To the top and bottom edges of the frame are attached waterproof cloths of stout texture, which, with the aid of springs, readily roll or unroll themselves when the frame is tilted. The frame can be locked at any angle, a clear view of the road being afforded to the driver through an opening in direct line with his vision. Even when driving in a
c26 storm "head on," no inconvenience is experienced by the man at the wheel, rain, snow or wind being immediately deflected. A large order for these screens has recently been placed by the Birmingham Corporation for use on its fleet of motorbuses.
Car Springs. Stand No. 41.
The chief exhibit on this stand is the progressive multiple-spring shock absorber. This device consists of a piston oil damper and a series of springs of different sizes and is madein types capable of taking loads of from 10 cwt. to 10 tons. A demonstration machine is shown which gives a very clear idea of the working of this accessory. The firm is agent for the Standard Tire Repair Co., Ltd.. of Manchester, and on the stand is shown an example
of the repair work to pneumatic tires carried out by this company. The method used consists of the vulcanizing of two worn tires together, thus considerably increasing their life. Mr. Maudling, the attentive representative, will be pleased to give any explanation of the various articles exhibited.
Cary. Stand No. 47.
A very large selection of axle springs for all types of commercial vehicles is here exhibited, comprising quarter, semi-elliptic and three quarter-elliptic. . One of the specialities shown is the Cary openleaf spring. Examples of this are shown on the Allehin steam-wagon exhibit. This type of spring has certain of its leaves bent to different radii from the others, and by this means the load is taken up gradually. All the exhibits show exceedingly careful workmanship, the plates are well bedded, and, when necessary, are held together by stamped mugs.
Coventry Chain. Stand No. 45.
Tins well-known company shows a 36 hp. silent chain-driven gearbox, and another gearbox of the same type built to the order and designs of the Gamagc-Bell Motor Cab Co., Ltd. The most important exhibit is the new type of chain
fitted with detachable links. In this chain every link can be separately removed without the aid of tools.
Kirkstall. Stand No. 58.
Particularly imposing are the various types of Butler patent fore and hind axles suitable for heavy motor vehicles. The two different grades of steel utilized in construction are worthy of careful attention. The centre portion is composed of a high-carbon steel, whilst the journals are made in three per cent. nickel steel, so that a highclass hearing surface is obtained for road wheels, and the centre portion is composed of steel best suited for road-carrying purposes. The live-axle type is provided with a flanged circular section for housing the bevel or worm-gear casing, and is a good example of steel stamping. Another interesting exhibit is the Butler patented front-axle swivel pin. This is designed to use oil instead of grease, grease being apt to get hard and interfere with efficient lubrication.
National Steam. Stand No. 39a.
The " C.M." electrically-welded wheels which are on view here indicate that this maker thoroughly understands these important component parts of a commercial vehicle. The production of this particular type of wrought-steel wheel is based on tine company's extensive road knowledge which it has acquired in London and elsewhere. There is at the present time a considerable number of vehicles, many of them motorbuses, fitted with this type of wheel. The "C.M." wheel is made up with tubular spokes, the hub portion is a good solid stamping, the spokes are drawn steel and the rim of wrought steel, and there is an excellent array of component parts which shows the constructional nature of these fittings. All wheels are machined within a high limit of accuracy, and any type of bearing can be fitted, of the roller, ball or cone construction ; the high degree of finish enables all " C.M." wheels to be interchangeable.
Hans Renold. Stand No. 48.
The Renold stand is always an interesting one, and those who desire to know all about chains for camshaft, magneto and final drives would be well advi.sed to pay it. a visit. The most important exhibits are the gears and shafts of a Straker-Squire type of silent chaindriven gearbox and actual examples of methods of adjusting chains for driving camshafts, magnetos, etc., used by different types of cars.
Watson. Stand No. 44.
The excellent display of cylinder castings, both in the rough and. machined, which is here on view at once proves that the internal-combustion-engine builder can obtain every satisfaction when placing orders for Watson castings. A special grade of iron is used in their manufacture, and frequent analyses are taken to ensure a consistentlyhigh quality. All castings are carefully checked for dimensions and are thoroughly tested by water pressure before being dispatched. Examples of the special bearing metal " Pbosforurn," marketed by this firm, are also a feature of this exhibit, and the broken sections shown certainly afford evidence as to the uniform fine grade of this alloy. This North of England manufacture also supplies engines.