Motor Road Transport For Commercial Purposes
(Liquid Fuel, Steam, Electricity)

ECONOMIES : FUEL 169 A pint of paraffin was bought for 2|d., and put into an empty auxiliary tank, and on this supply the car ran over a give-and-take road for 4f miles, or at a rate of 38 miles to the gallon. It is understood that the inventor of this carburettor has tried it on a number of different makes of engine— the various data with regard to fuel consumption being given below—though not on a sleeve-valve type. Since a higher temperature of exhaust would be obtain- able with this make, the results might be even better. No difficulty was experienced in making the engine run at high revolution rate with evenness of power output. The designer states that he has run on all kinds of fuel, including 75 per cent, pure wood and grain alcohol, with no change in regard to engine cosntruction or compression pressure. Fuel Consumptions. Car. Original Carburettor With Inventor’s Carburettor. On Petrol On Petrol. On Paraffin. Ford with Kingston carburettor 28-m.p.g. 53-m.p.g. 48-m.p.g. 17-h.p. Maudsley 22-m.p.g. 32-m.p.g. 30-m.p.g. 75-h.p. Mercedes 8-9-m.p.g. ■ 22-m.p.g. Winton. “ Model C ”x. 22-m.p.g. _ (average) 33-m.p.g. 14-15-h.p. S.P.A. 30-m.p.g. — 42-m.p.g. On a 10-h.p. two-seater fitted with a Trier and Martin three-jet carburettor 4| pints of petrol were used for 15 miles. With the new device 15 miles were run on 3 pints, 8 oz., and on. 3 pints 10 oz. of paraffin oil. Power Alcohol. The subject of Industrial Alcohol is manifestly a very extensive one, comprising as it does the considera- tion—inter alia—of the creation of an Empire industry ; 1 (On 75 per cent, alcohol this car did 25-m.p.g., but the compression was much too low for this fuel.)