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LOOSE LEAVES
Page 102
Page 103
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ONT] reason for the non-shccess of Mr. Herbert Morrison at the General Election was the resentment which was felt against certain regulations and restrictions imposed by him in connection with taxicabs. Arrangements were made for the attendance of 40 or 50 drivers at each of his meetings, and strong views were expressed regarding his treatment of the taxicab trade.
THE latest White six-cylindered engine for buses has overhead salt-cooled exhaust valves operating against hard-alloy seats. The alloy is bonded u16 to steel rings which are screwed into the cylinder head and locked. The exhaust gases are taken from the left side of the engine through a central passage in the head to the other side, thence via the induction-pipe jacket to the silencer. It is claimed that this design obviates breakages of the exhaust manifold.
ONFA' of the greatest difficulties still experienced with commercial-vehicle engines is excessively rapid wear of the cylinders. This fault is put down to several causes, such as undue softness of the metal, tearing of the wearing surfaces by running at excessive speeds before the hard skin has formed, and the use of inferior grades of lubricant. Usually with cast cylinders it is found that the softest metal is in the barrels, because of their relatively slow rate of cooling. One cure for this particular trouble is to use nickel cast iron, as this metal will give good machining material in the lighter parts of the casting, whilst hardening the thicker sections. Much success is also attending the use of cylinder fitters, and these can be either centrifugally cast or, if a nickel-iron be employed, sand cast. Some grades can be softened for machining and hardened later by cooling rapidly in air or quenching in oil.
CHICAGO'S 1933 World Fair promises to be a wonderful exhibition. It is intended, to indicate a oak century of progress and the motor vehicle will take a great part,in the display. It is stated that General Motors alone will stage a structure 420 ft. square which will house a complete assembly plant and will cost nearly a million and a quarter dollars.
ONE often hears the question raised as to the ulti mate fate of old vehicles. Many of them are turned into chicken huts, summer houses, etc., but two amusing examples were seen recently within the space of an hour ; both were very elderly light vans and still in service. One was used for transporting to the station supplies of guinea pigs intended for medical research work at the hospitals, whilst the other was carrying a stock of second-hand clothes which its owner was selling on hire-purchase terms.
MOTORBUSES aad bus services sometimes prove useful in the most unexpected ways. Very often, when a suspect is arrested by the police, his pockets are found to contain bus tickets. If, after the man has given a full account of his movements, reference be made to the bus company concerned, it is, in practically every case, possible to trace from the numbers on the tickets exactly when and where the man boarded and left vehicles. A check is thus obtained on the statement which he has made.