Testing Tyres by Dynamite
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BLOW-OUT tests of front and rear tyres by means of dynamite caps in the covers were features of a demonstration held by the Goodyear Tyre and Rubber Co. (Great •Britain), Ltd., Wolverhampton, on Monday, to show the burst-proof properties of Lifeguard inner tubes. The caps were connected electrically to a switch through a slipCiag and detonated by the driver when travelling at speeds from 30 m.p.h. to over 60 m.p.h. The drivers, who included a woman, all reported that the burst had no effect on the handling characteristics of the vehicle as it was brought to rest.
The largest size of Lifeguard tube to be produced is 7.00 x 16 ins., and no announcement could be made regarding the manufacture of tubes specifically for commercial vehicles. It is understood that the American Goodyear company produces Lifeguard tubes in the larger sizes and that they are used by many coach concerns.
The tube has an inner and outer compartment, connected by a valye through which the rate of air flow is restricted. When the pressure in the outer chamber is released by a burst, the two-ply inner chamber takes the load and continues to give support to the wheel for about four minutes. When the cover is penetrated by a sharp-pointed stone or implement, the chamber is easily deflected and thus escapes penetration. In addition to the dynamite demonstratians, bursting tests with 3-in, spikes were repeated to illustrate the value of this feature.
HORSE DOPING: TRANSPORT THE WEAK LINK
TRANSPORT was the only weak Ilink in a horse trainer's safeguards against doping, said Mr. James Amphlett before the London [Appeal] Tribunal in London, last week, when he represented Hinton Parva Racing
Stables, Ltd. The fewer the people who came into contact with the animals the better, he said, and if the trainer had his own vehicles, only his employees did so.
The Railway Executive, the Lambourne Racehorse Transport Service, Ltd., and Maj. W. H. Borwich, Ltd., appealed against the grant of a B licence to the Hinton Parva concern by the Western Licensing Authority. Their case failed.,
OLDHAM SAFETY DRIVE HE importance to road safety of 1 efficient electrical equipment is to be stressed in a campaign to be launched by Oldham and Son, Ltd., Manchester. Garages all over the country are being asked to participate in bringing home to vehicle owners the dangers of using faulty lamp bulbs, etc., and the need to have batteries regularly serviced.