MOTORING MARSEILLAISE

NZ Truth, Issue 1191, 27 September 1928, Page 17

MOTORING MARSEILLAISE

Amazing Inventions Marching On To Acme of Perfection

DEVELOPMENTS m the laboratories and on the proving grounds of automobile companies have had far-reaching effects • on many other manufacturing businesses.

THE public sees little of the processes which have developed and still are developing our motor cars and cycles. ' The work is not particularly spectacular, though some of its results, viewed m perspective, are strikingly so. .-...-. It consists, roughly, of devising new materials to do a given job more efficiently, forming new combinations of materials already known to gain the same end, and originating new equipment and manufacturing methods, all m the interests of a better and less expensive product. Chemical, metallurgical, and physical

fiery furnace within the combustion chambers not only of automobiles, but of speed boats and aeroplanes, making t possible such triumphs as Hinkler's, Lindburgh r s and Kingsford Smith's trans-oceanic flights. This constant experimentation, the struggle of science onward and i upward towards perfection, explains the necessity for yearly or frequently changing mod.els of.' motor cars. i ■ „-.. Only this way can the developments m the industry be passed continually on to the consumer, and because thousands who can afford to do so are

THE illustration shows In simple form what happens m the induction *■ pip©. The air is sucked through the pipe by the engine and at the point where the jet enters, the pipe is restricted m area By> means of what is .termed a .choke, tube. This, gives an injector effect, drawing m petrol from the jet, which passes along the induction pipe past the throttle valve, and by the time it reaches the cylinders it has ber come mixed with the air to form an explosive vapor. The choke valve, very similar to the throttle valve, is placed m the induction pipe on the outside of the jet, to restrict" the amount of air entering, so that the mixture is enriched. All carburettors work on the principle shown above, but they vary greatly m form.

laboratories are the three principal agents m. this work of pioneering. Spurred on by the needs of the automotive industry, which ran < into countless problems when the mass production era dawned, these agencies achieved results whose benefits extend far beyond the limits of the industry which -set them m motion.' They have given the world pyroxilin lacquers, which are now used everywhere, and lacquer-impregnated fabrics— -including wonderful new lino- ! leums — of marvellous beauty and adaptability. ■■■, - ' They have found a- way to employ chromium, the hardness of which approaches the diamond. They have developed non-metallic compositions from which strong, silent gears may be cut, giving better performance at a lower cost. Heat-resisting steel, evolved m response *to the industry's requirements, withstands for thousands of miles the

enabled to turn m good cars at frequent intervals to buy better ones, used automobiles are made available for the less fortunate. Thus, each year, the industry is able to serve and gratify the desires of an ever-growing number m every walk of life, while bringing happiness and prosperity to the hundreds of thousands whose livelihood is dependent on it.- ' ••' : : ;.- ;■ '