Passing Comments
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Restrictions and OMMERCIAL vehicles Taxation Arrest 1.-• operating in France on French Progress . January 1 of this year
numbered 451,344, compared with 451,151 on the first day of 1938. The reasons for this almost static condition may be found in road-rail co-ordination efforts and heavy increases in taxation on commercial-vehicle users. Of the total, it is interesting to note that 35,000 are oil-engined, which is more than are operated in Britain.
AN investigation into the durability of gears has been in progress at the I.A.E. Research Department for some time, the main factors under study being the relative durability of various types of steel, and the effects of the lubricants used, and the surface finish. Each testing machine has two torsion shafts coupled by two similar pairs of gears, one pair at each end. One shaft is divided and joined by a coupling used to
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Interesting Research on Wear of Gears
apply load, half the coupling being clamped and a torque applied to the other by a lever and weights; the halves are then locked together so that the torsion remains constant. The involute profiles are measured to .0001 in., and the gears are examined at intervals.
The Farmer and His WE are informed that during Cow Want Road vv 1938 rail traffic suffered Transport . . . . heavy losses in every branch of
livestock. We are not surprised by the information. In 1937 the number of cattle carried by rail was 2,446.000; in 1938 it was 2,111,000, the latter total being about half that recorded for 1935. Transport of oil-cake, as a matter of interest, was almost halved in 1938, as compared with the previous year ; and since 1935 the railways have lost three-quarters of their business in this section. Farmers are wide awake, and they realize that road transport is ideally suited for practically all of their needs. Dumb animals are only polite about rail transport because they are dumb_ The Use of P.S.V. DROPRIETORS of public Plates to be Stopped I service vehicles will learn on Expiry . . with satisfaction of the regula
tions abolishing the use of the plate hitherto required. In its place, the vehicles will carry the licence itself in the form of a disc, similar to the excise licence. They will be introduced over the 12 months beginning July 1, as the old type expires. The plate has always been an unsightly and really unnecessary addition to many otherwise goodlooking machines.
This Journal's Appeal rrHE extent and variety of Stressed in a Popular I the readership of this journal
Novel sometimes surprises us. Fathers
have even told us that their boys are often first at the letter-box when it arrives. This is emphasized in a popular novel, "The Squire," of which the following is an extract :—Boniface crouched on the floor with a scarlet face reading The Commercial Motor. "Boniface !" He screeched again like a parrot, without moving his eves off the page. " Nobody'd think you were seven!" He curdled her blood with his answering yell, hardly moving a muscle, and reading, reading for dear life. Under her quiet gaze he folded his magazine with a reasonable sigh and followed her into the bathroom.
Alcohol More Easily TN certain parts of Australia it Obtained than Petrol 1 is easier, during certain hours,
in N.S.W. to obtain refreshments than to
buy petrol. Outside the Metropolitan area of Victoria., if you call at an hotel and say that you are a bona fide traveller, you can obtain alcohol during what would otherwise be prohibited hours. If, however, you require petrol, you must answer a series of exacting questions and sign a document carrying a heavy monetary liability should any of the details prove to be incorrect. In some cases, in fact, it is impossible to obtain petrol at all at certain times, and it has been known to curtail tours, because of the difficulty of securing fresh supplies of fuel en route.