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Who Put the Rat THERE was excitement at Among the Removal the autumnal dinner of Pigeons; the National Association of Furniture Warehousemen and Removers. Something struck the foot of The Commercial Motor representative, picked itself up and streaked down the room behind the top table: Ladies jumped upon their chairs and strong men blanched. The " something " was a fine, bonny rat.
How a Difficult MOT everyone realizes the Bowden Problem was I interesting little feature
Solved about the form of Bowden tubing, known as Bowdenex, which permits it to remain the same length whether it be straight or bent. In the original type, with ordinary coiled wire, the effect of bending was to throw the pressure on to one side of the coils, whilst at the other the coils became separated, which affected the length and resulted in a pull on the cable. The later, development was to make the wire of triangular section, twci wires being' inter-wound so that in neighbouring coils the triangles were reversed. Now, when the tube is bent, the coils accommodate themselves accordingly, some rising, others falling, below the mean level, as is indicated in the accompanying illustration.
A Simple Explanation A N interesting explanation of Sparking-plug ra of a popular misconception
Qualities . . . . regarding types of sparking
plug has been issued by the Lodge concern. A few years ago, in racing circles, plugs were divided, broadly, into two categories" hot-stuff" and "slave," the former for racing, the latter for light running. These terms became contracted to " hot " and " cool " or "cold." Actually, the " hot-stuff " plug is one which will keep cool under severe conditions, whereas a " slave " plug easily heats up and burns off oil reaching the points. The leading plug manufacturers have, therefore, reversed the old nicknames and now define plugs in accordance with their properties. In future, a " hot"' plug will be one which heats quickly and iS for a coolor oily engine, whilst a " cold " plug is the erstwhile "hot-stuff.'
New Burden for TO improve their finances, Motorists : a Tax on " the municipality of Rotten Radiator Water! . mann, Styria, has decided to raise a motorcar tax—on water!. According to the order issued, a monthly fee of fourpence for each motorcycle and eightpence for each car has to be paid by the owner. About 2,000 inhabitants are subject to this taxation, which is expected to bring in approximately £2,000 per annum.
T"popularity of radio equipment on private cars is rapidly increasing. In fact, Philco Radio reports an increase of 500 per cent. in its sales during the Motor Show period as against the same period last year. It remains to be seen, however, whether this development reflects itself in the commercial-vehicle side of the business. In some instances radio has proved
Will More Coaches Soon Have Radio Equipment . . .
popular on coaches, but there is always difficulty where the taste of a comparatively large number of people has to be considered. From our experience we know that friction does occasionally result, although the recent improvements in quality may remove one cause of disagreement.
The Danger of BuyIT appears that reconditioned Mg Rebuilt Sparking 'sparking plugs are, in some Plugs cases, being sold as new, and
we strongly advise operators never to buy plugs as new unless they are in the makers' sealed packages. Instances have occurred of rebuilt plugs disintegrating while in service with drastic effects upon the engines concerned. In one case, the centre portion dropped into the cylinder, knocked a hole in a piston and bent both valves. It is also not unknown for new centre electrodes to be screwed on to the stumps of the old components, thus adding to the risk of such parts becoming loose.