Tyres for Every Transport Need
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New Covers Designed for House -to-house Delivery, Sharp Turns and Prolonged High-speed Running SPECIALIZATION is the outstanding impression left by a rapid examination of the products so effectively displayed by tyre manufacturers at this year's Commercial .Motor Show. Covers designed to meet the particular stresses of every type of vehicle are on view.
Some have treads evolved to combat the rapid acceleration and continual stopping and starting of electric vehicles; some have a profile which resists the constant change of direction met in vehicles with. minute turning circles, such as mechanical horses, fork trticks, etc.. Finally, there are the deeptreaded, flat-contour types of . tyre giving the long life required on heavy goods vehicles and buses running substantial continuous mileages. . ,
On Stand 144, the -Avon India Rubber Co., Ltd., Melkshain, Wilts, exhibits a range of tyres exemplifying this trend. Available in highand lowpressure types for goods vehicles and buses is the heavy-duty giant, which has a ileep, non-skid pattern and continuous ribs in the centre of the tread. The pattern is specifically ribbed to promote silence, and a noteworthy point is the buttressed shoulder to resist kerb-provoked wear.
Also available in similar variety is the traction tyre, evolved for use on unprepared surfaces, such as building sites, gravel pits, etc. The ranee is completed by the low-loader tyre.
Bergougnan Tyre Co., Ltd., 95-100. White Lion Street, London, N.1 (Stand 151), makes a special show of its newly developed low-loading tyre. lb appearance is bold, the side walls being heavily buttressed and the tread deep and wide. The requirements of goods and passenger vehicles of the heavier type are met by the New Type heavyduty giant. High-pressure and lowpressure covers are available and they are heavily reinforced for their particular duties.
An important consideration in tyre design is to ensure optimum traction compatible with minimum drag. The British Tyre and Rubber Co., Ltd., Herga House, Vincent Square, London. S.W.I (Stand 142), stresses this point in its tyres.
The B.T.R. Express Giant tyre is a good example, its features being designed to meet fast long-distance haulage and passenger-service requirements. The casing of this tyre contains safeguards to resist the internal heat set up by sustained speed and load. Also shown are the B.T.R. Gilt-Edged giant tyres. the tread of which is specifically intended for the conditions met in goods-vehicle use. Associated with this concern is Palmer Tyre, Ltd., which, on Stand 141, exhibits a full range of Palmer giaat covers.
Davies Classic giant tyres and tubes are seen on Stand 149, occupied by the Davies Tyre Co., Ltd., The Hyde. London, N.W.9.
Covers manufactured with tempered rubber to reduce abrasion and heat build-up are displayed by the Dominion Rubber Co., Ltd., 62-64, Horseferry Road, London, S.W.1 (Stand 152). These are the Royal Block and Royal Fleetway tyres, the latter being for long-distance haulage. Tubes shown by the concern incorporate vented canStruction to preclude the possibility of air being trapped.
No fewer than 19 exhibits are seen on the stand (147) of the Dunlop Rubber Co., Ltd., Birningham. Of these, 16 are covers, including solids, semi-solids and pneumatic tyres designed for all types of vehicle. Two of the tyres seen are new, the Power Grip and the Multistep. The Power Grip is available in four sizes and is for vehicles engaged on mining, logging and construction work. The second is for delivery vehicles constantly stopping and starting.
Other types displayed are the P. F. range for buses, the tread pattern of which embodies knife-cuts in addition to the multitude of teeth in the tread; the self-cleaning Roadtrak; the recently introduced T?xicord, designed for the conditions met by taxis in city service; the Elektra for battery-electric vehicles, and the T.B. (truck-bus) range.
An oval-moulded tyre is featured by the Firestone Tyre and Rubber Co., Ltd. (Stand 145). This is the transport heavy-duty truck-bus tyre, the tread of v.hich is designed to maintain a fiat profile throughout its life. Another n.n‘v type is the high-speed delivery cover, its characteristics suiting it for light-van work. This tyre also has a thick rib to resist kerb abrasion. Lowloader and trailer tyres are also shown.
A popular pre-war tyre, reintroduced only a few months ago, makes its appearance on Stand 150 (The Goodyear Tyre and Rubber Co. [Great Britain], Ltd., Bushbury, Wolverhampton). This is the Stop-Start, and is a cover intended to withstand heavy wear on town delivery services.
Another new exhibit is the fork-truck 7 by 9-in. tyre. This is suitable for industrial trucks, platform and hoisting vehicles. The low-loading Tyre is for fitting to battery-electric vehicles, mechanical horses, etc. Giant tyres for buses, coaches and goods vehicles are also displayed.
A double-purpose giant tyre recently evolved by Henley's Tyre and Rubber Co., Ltd., Milton Court, Dorking. Surrey, is seen on Stand 153. Designated the P.G. tyre, this has a plain circumferential rib pattern for maximum mileage and a cross-wise tread running from shoulder to shoulder, as in a cross-country tyre, to give good traction characteristics. Prototypes of this tyre were subjected to many months of trial under all conditions--icy roads, hot paving, loose gravel and mud. The full range of R.G., S.G. and M.H. tyres is also to be seen.
Stand 143 is that of the India Tyre and Rubber Co., Ltd., Inchinnan, Renfrewshire. Here, again, two new designs may be inspected—fhe extraheavy-service M-type tyre and one for mining and logging work. The M-typc tyre has a heavier and deeper tread than the previous design and is available in the 34 by 7-in. size. Covers for buses, low-loaders and cross-country vehicles are displayed.
Once again the Michelin Tyre Co., Ltd., 81, Fulham Road, London, S.W.3, features its Metallic tyre on Stand 148. The casing is made entirely of steel .cords and cut-away casings are on view to enable the construction to be studied. Heatand fatigue-resistance properties of the tyre are high. Textilecasing tyres are also shown.
Seven giant tyres in is special centrepiece represent the range of tyres produced by the North British Rubber Co., Ltd., Castle Mills, Edinburgh, 3. The tread design is new.
A distinctive tread is a feature of the exhibits on Stand 146 (Pirelli, Ltd., Burton-on-Trent). Prominent is the new L-type giant tyre making its first appearance at the Show. This will be available in the full range of L dimensions and is additional to the established Carriload types. The Electruck tyre, pioneered by Pirelli, is also shown, and is designed for the special requirements of battery-electric vehicles.