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An Exclusive Guide to Exhibits in the Accessory and Workshop Equipment Sections

Advances on All Fronts

SEVERAL new technical developments aimed at improving vehicle efficiency or easing the task of the driver make their debut at the Scottish Motor-Show on the component and accessory makers' stands, whilst a number of novel products is shown by suppliers of transport service equipment. Forward steps have also been made by tyre manufacturers.

On exhibit for the first time in this country is the Pneuride suspension system of the Dunlop Rim and Wheel Co., Ltd., Holbrooks Lane, Coventry (Stand 180). Nylon-reinforced bellows are used, and there Is a levelling valve to compensate for heavy loading. This valve is prevented from admitting air to the bellows when the vehicle is negotiating twisty roads.

Besides affording vehicles a smoother, more comfortable ride than conventional springing, it is claimed that headlamp angles remain constant, and that a cause of dazzle is eliminated. Disc and transmission brakes may also be inspected on this stand.

Facings for disc' brakes are introduced by Raybestos-Belaeo, Ltd., Southwark Street. London, S.E.1 (Stand 178).

An innovation on Stand 139 is the Hydrovac H.S.R./812 vacuum hydraulic-servo equipment produced by the Clayton Dewandre Co., Ltd., Titanic Works, Lincoln. Its chief feature is a high volume of constant vacuum for power storage which eliminates the need for a separate vacuum reservoir. Control is effected through-the hydraulic master cylinder.

Trailer Lubrication

This company's display also features the application of automatic chassis lubrication to trailers. Such equipment is connected to a lubricator mounted on the prime mover. ClaytonOetiker exhaust-braking equipment may also be seen_

An inertia starter and a turbocharger are displayed by Simms Motor Units, Ltd., Oak Lane, London, N.2, on Stand 171. The starter can be fitted in the place of an electrical type, Dead it is stated that a man call start an engine by cranking at a moderate speed for about 10 seconds.

The turbocharger is of the Simms-Eberspaelker pattern5 and the turbine is driven by the exhaust gases of the engine. It is claimed that its use cart increase the power output of art engine by between 35-50 per cent., although it should not be indiscriminately applied to any engine but matched with suitable manifolds. Modifications to the fuel-injection system and valve timing may also be necessary.

Dry Air Filter ' A new type of air filter of simple construction is exhibited by the Automotive Products Co., Ltd., Tachbrook Road, Learnington,Spak,. on Stand 177. Known as the Purolator drytype air filtor, it is serviced simply by directing a reverse flow of air through the paper-filter element, which is plasticsimpregnated and claimed to be highly efficient.

The working of Manumatic two-pedal control may be examined on this stand, where details are also available of the recently introduced clutch-cover assemblr exchange scheme of the Borg and Beek Co, Ltd.

Latest types of Seleetroshift and Autolelectrie transmission systems are shown on Stand 167 by Smith's Motor Accessories. Ltd., 153-155 Bothwell Street, Glasgow, C.2. These employ a new type of construction whereby the exciting coil of the magnetic-powder couplings, together with some of the associated flux-carrying iron, are stationary. This is stated to eliminate the use of brushes and slip rings, and reduces rotational inertia on the engine, so that the drag on the flywheel is no greater than with a dry clutch.

Various detail refinements have resulted in smoother operation. Different types of British and Continental vehicles have been tested with these systems with, it is claimed, satisfactory results.

The company also show their R300 cab heater and R450 and R750 coach heaters. These are of the type incorporating a matrix through which water from the cooling system is conducted. There is also the 50ASM combustion heater. This unit burns either fuel oil or paraffin, and special combustion arrangements ensure that exhaust gases are non-toxic.

Newest models of Radiomobile radio sets may also be inspected on this stand. Operators of one-man buses in country districts may be interested in passenger-address equipment, and for low-cost installation in the cabs of goods vehicles there is the 20X receiver, for mediumand long-wave reception, which costs £21.

The Woodhead-Monroe engine stabilizer is displayed by Messrs. a and 1. Paton, 97 Wellington Street, Glasgow, C.2, on Stand 159. Kits are available for certain Leyland and B.M.C. oil-engined vehicles, but the units may be used in conjunction with any type of engine, the provision of suitable mountings being fairly simple.

Reducing Vibration

A vertical and a lateral stabilizer are available. Both have' louvre attachments at each end, by means of which they may be attached to convenient points on the engine and chassis. Use of the stabilizer reduces engine vibration and enables idling speed to be reduced, it is stated.

On Stand 192, Park Bros., Ltd., Ordnance Street, Blackburn, display their lightweight BT and ST batteries. Compared with standard types of battery, BT models have slightly less capacity, but the same starting ability. ST batteries are lighter than standard but offer higher capacity and starting ability.

Glass-wool and Permic separation is used. The company are showing for the first time a range of dynamos and control boxes which are sold as new or factory-reconditioned units.

Possible pointers to future battery development are the translucent polystyrene containers used by Chloride Batteries. Ltd., Swinton, Manchester, for their new Exide batteries for light vehicles. These may he inspected on Stand 222. Acid level can be seen without need to remove the cell caps.

Joseph Lucas, Ltd.. Great King Street, Birmingham (Stand 168), have re-designed their 576 series of long-range and fog lamps to provide for attachment to bodywork at the back, instead of by the more usual spigot arrangement. The price

of these units, complete with 48w. bulb, cable and switch is £3 15s. each.

The company also introduce a parking lamp at 12s. 6d. It has a red and a white Diakon lens. Self-aligning wing mirrors costing 3s. 6d. with flat glasses or 11 5s. with convex have been produced by Lucas, together with a combined switch and warning light at 10s. This unit, when used in conjunction with a fog lamp for example, illuminates to remind the driver of the use of the accessory.

Asymmetrical headlighting, shortly to become standard practice on the Continent, is featured by Marchal Distributors, Ltd.. Great West Road, Brentford, Middx, on Stand 151. Each headlamp gives a split beam when dipped, but the near-side lamp provides a fairly high beam to illuminate cyclists and pedestrians, for example.

If a vehicle fitted with such equipment is taken to the Continent, its conversion to the right-hand rule of the road is simply effected by rotating the bulbs from one 'marked position to another. New Marchal auxiliary lamps feature vizored rims to protect the glasses from dirt.

Co-ordinated control for windscreen wipers and washers by means of which the wipers arc brought into action, if not already being worked, when the button for the washer is pressed, is shown by Trico-Folberth, Ltd., Great West Road, Brentford, Middx, on Stand 150. A mirror incorporating a spring-loaded base is also exhibited. Should it be knocked, it returns to its original position.

For use in vehicles with thermosyphon-type cooling systems, three Sahara heaters are shown on Stand 147 by Wingard (M.A.), Ltd., Chichester, Sussex. Other kinds of heater are now available in kits for ready. installation in popular vehicles. Retail prices, including the cost of demister tubes, vary from £9 15s.-£11 5s.

The company are using glass-fibre-reinforced plastics for the manufacture of a range of sun vizors, and introduce a twinnozzle, plunger-type windscreen washer which sells for £1 5s. The 16-oz. reservoir is stated to be sufficient for 100 operations. An interior lamp measuring 41 in. by 2 in. by 11 in. is also exhibited, together with mirrors of the fixed and spring-back pattern.

Manufactured by a special process to ensure even wall thickness, convoluted hoses are shown on Stand 161 by Tudor Accessories, Ltd., Beaconsfield Road, Hayes, Middlesex. They are made in nine different sizes of bore, ranging from 1-21 and are available in lengths of up to '4 ft. A number of new types of windscreen washer is also displayed.

A swivel-type tyre valve for commercial vehicles is introduced by Romac Industries, Ltd., Edgware Road, The Hyde, London, N.W.9, on Stand 190. Romae Celerbrite polish is now sold in 16-oz. tins at 3s. 6d., and the company have new examples of nickel-silver ignition and door keys which have no plating likely to wear off and jam the locks.

Tyres with nylon carcases are now being made by the Goodyear Tyre and Rubber Co. (Great Britain), Ltd., 172 Bothwell Street, Glasgow, C.2. Known as the Eagle range, the covers are produced in sizes for 13-16-in, diameter wheels. Outstanding features are claimed to be exceptional strength and smoother riding qualities. They can be seen on Stand 198.

On Stand 199, the India Tyre and Rubber Co., Ltd., 92 John Bright Street, Birmingham, display their new Super Multigrip tyre for the rear wheels of tight vehicles. The company say that the front wheels of certain modern vehicles carry more weight than the rear, and therefore the rear wheels require a tyre with better traction characteristics. Pirelli, Ltd., 343-345 Euston Road, London, N.W.1, introduce their D.P. tyre to meet similar conditions. A number of tyre designs has been newly brought to this country from the United States by the North British Rubber Co., Ltd., Castle Mills, Edinburgh. 3 (Stand 169). Among them is the U.S. Royal Safety Steel Shield cover which has a steel-wire foundation to the tread. Textile is retained for the carcass and walls. Cooler running and the ability to have several retreads are claimed advantages.

Tubeless giant tyres in the U.S. Royal Fleetway range may also be inspected, together with the 'U.S. Royal Traction Grip tyre for use on loose surfaces.

Royalite, a1 nitrite thermoplastic material from which certain body parts

such as facia panels are now being made, is another North British development.

The Firestone Tyre and Rubber Co., Ltd.. Great West Road, Brentford.

Middx, display on Stand 140 a tyre specially designed to minimize whine and squeal and thus provide quiet running. With the coming into popularity of mobile offices and similar types of out fit based on two-wheeled caravan

chassis, the problem of assuagingwear of the rear tyres of towing

vehicles caused by the "snaking" of the trailer has become common.

A new corrective device is the Aidatow, shown on Stand 157 by the Adrolic Engineering Co., Ltd,, Ciober Road, Milngavic.

It is simply a small wheel on a retractable mounting for attachment to the rear of the towing vehicle. It is stated not only to stabilize the prime mover against sideways sway, but also to damp vertical movement of the rear springs. The wheel has no swivel or castor actipn, and normal tyre wcar is stated to be about 4,009 miles. It is said that this is more than compensated for by the saving in wear of the rear tyres of the vehicle to which it is attached.

F24

New Aids for Engineers

Equipment to facilitate tyre repair is introduced by Auto motive Parts and Accessories, Battle Road, Hailsham, Sussex on Stand 168A. Pneumatically operated, the A.P.A. tyn remover enables covers to be taken off without need for wheel to bc detached from the vehicle. It can be used on all light weight sizes of tyre.

A bead expander for tubeless tyres consists simply of ; neoprene tube which is placed around the tread and inflated whilst a pneumatic bead breaker—a portable tool—can b used without removing the wheel fron the vehicle. A feature of a testin tank for tubeless tyres is the provisioi of transparent sides so that leaks ca.. be more readily detected.

The Duquesne tyre remover i featured by James 'Robertso (Factors), Ltd., 95 West Nile Stree Glasgow, C.1,. on Stand 132. Wit the use of this appliance, both bead of a tyre may be loosened from th flanges of the rim without turning th wheel over.

The Crypton Motormaster, a ne. electronic engine tester, may 1: inspected on the Robertson start( The device enables all phases engine performance to be checked b making only seven tests.

An electrically driven high-pressur vehicle washer is introduced t Tecalemit, Ltd., Plymouth, on Stan 518. The motor drives a three-thro pump through direct worm gearin whilst an unloader valve, integral wit the pump, provides automatic pressu, control. The equipment is designed for ease of servicing ar is built on the unit-construction principle. It will be availab for use with Other one or two guns.

A combination of Tecalemit and American Balcrank desigi has resulted in the production of an improved cabinet ho: reel. A new spring action allows smooth extension and retra tion of the hose. The Tecalemit Frame-Koniact hoist has a ne ram and casing design.

Waste-oil burners are exhibited by Thomson and Bros! Brothers, Ltd., 126 George Street, Edinburgh, on Stand 13