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Passing Comments

21st October 1932
Page 36
Page 37
Page 36, 21st October 1932 — Passing Comments
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Which of the following most accurately describes the problem?

WITH the approach of winter, following a season in which rigid six-wheelers of the lighter type (with two-wheel drive) have been widely employed for all classes of work, interest is being shown in methods of obtaining four-wheel drive so as to face more easily soft-ground conditions.

THE experiment of using mounted police for traffic control in the West End of London has failed. The scheme was tried out for a month, but it was found that the necessity of relieving the horses every half-hour was more expensive than the previous system and that constables on foot are more efficient.

THE development of great electricity generating

stations should result in much lower costs for current. The latest station, at Iroubridge, is estimated to produce its current at id. per unit, including all capital charges.

WEthink it unlikely that tlye London County

'Council and other tramway authorities will follow the example of a German city in offering prizes for certain of the tramway tickets which they issue. Such a procedure would be too much like a lottery to please our legislators, although it might solve the problem of ticket disposal. IN a statement made recently by Mr. G. J. Shave, of the L.G.O.C., he referred to the fact that there are now on the streets of London 100 buses equipped with oil engines, and he can already state definitely that the cost of maintenance and depreciation is no more than that for a petrol engine, whilst the mileage per gallon has been increased from an average of five to eight, acceleration is excellent and there is greater efficiency at slow speeds, the risk of fire is virtually eliminated and the fumes are less harmful than those of petrol.

UNDER the new Patent Act, which comes into force on November 1, the period of provisional protection is extended by three months, so that the complete specification may now be left at any time within) a year from the date of application. An important point, however, is that if foreign patents be contemplated these applications will have to he sent before the complete specification is on the file in this country, because the period is the same under international and inter-colonial arrangements, The time in which a patent must be sealed has been extended from 18 to 21 months, but this may be increased in particular eases. THE patentee may request the Comptroller to treat a complete specification filed with the application as though it were a provisional one, or may ask that an application for a patent be post-dated, any time before acceptance, for a period not exceeding six months. The latter is a risky procedure, but may sometimes be desirable.

REFERRING to oil-engine fuel in a recent paper on compression-ignition engines by Mr. S. E. Crooke, works manager of Crossley Motors, Ltd., which was read before the Institute of the Motor Trade by another Crossley expert, Mr. C. W. Wridgway, the author pointed out that the lay mind associates oil engines with crude petroleum and waste oil, but the small high-speed engine requires a much more refined fuel, one which, at normal temperatures, is quite fluid and translucent.

IN answer to a question of great interest, Mr. Wridgway mentioned that the emission of black, oily smoke, which sometimes occurs, was, in nine eases out of ten, due to bad atomizing and/or sticky valves.


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