UNDER-BONNET HEATING IN FROSTY WEATHER.
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WITTE the approach of winter and the occurrence of frosty weather, it once again becomes urgent and important to consider the best means of avoiding the trouble that arises from freezing of the jacket water in the cylinder jackets, pump, piping and radiator of a petrol-driven goods vehicle. The large majority of such vehicles stand out in the Open yard all night, and it is a nuisance to have to empty the water circulating system overnight and to refill in the morning, whilst employers cannot always rely upon the necessary precaution being taken or prevent an occasional start-up with no water in the jacket.
The idea of supplying warmth through some suitable medium has been tried over and over again With success, provided that suitable apgaratus be employed. The safety lamp, such as is used
for coal mines, complies with the require ment of safety against ignition of inflammable vapour, the presence of which in the region of a carburetter is always possible, and, in fact, highly probable. But it is absolutely necessary that the burning capacity of such a lamp should be ample, fora 12-hour spell of idleness requires to be provided for, so that a lamp should be capable of burning from 12 to 18 hours. Other essential requirements are ease of recharging and. maintenance.
We illustrate two lamps which are now on the market. One is made by Ackroyd and Best, Ltd., of the Beacon Works, Morley, near Leeds. Its size is 101 ins. by -4 ins., and it will burnparaffin oil, benzene, petrol or naphtha. The other is ' made by J. H. Naylor and Cu., of the Wiend, Wigan; Lancs.
Warmth facilitates restarting of the engine even on the coldest morning.