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Aviation History
1913
1913 - 1388.PDF
(/OGHT DECEMBER 27, 1913. THE PALMER CORD AERO TYRE. AMONG what might be termed the accessory exhibits at the Paris Show there was one which was interesting not only from the fact that it was British but also because of its ingenious features. We refer to the special Palmer cord tyre for use on aero planes, and which has been designed to withstand the severe lateral strain to which such tyres are subjected. It has been found that the ordinary beaded edge tyres as used on cycles and motor cycles give trouble when used for aeroplanes because, when landing with a side wind blowing, the lateral stress set up in the tyres causes the " toe" of the tyre bead to lift, which allows the air tube to blow underneath and burst, or in some cases the tyre is pulled bodily off the rim. To overcome this difficulty, a rim of special design is used for the Palmer Aero Tyre, and the beads of the cover are so constructed that they lock in the rim, as is shown in the section. This section shows clearly what takes place when the tyre is subjected to a very severe side strain. Naturally the cord fabric is used in the construction of the cover, and it is claimed that, by its use, strength for strength, the Palmer Aero Tyre is much lighter than those made from other materials. The Palmer Co. are also selling a very useful disc for covering the spokes of the wheels. These discs are light in weight and can be very quickly attached to or dftached from the wheel as they are fitted with a number of spring hooks which engage with holes drilled in the side of the wheel rim. Cross section of a Palmer Aero Tyre under test and a general view of tyre on wheel fitted also with Palmer side covers. AIRSHIP NEWS. The New Forlanini Airship. THE " Citta di Milano," the latest airship^built by Forlanini, made a trial trip across Lake Majeur on the nth inst. It carried seven persons and went up to a height of 2,000 metres during the run from Baggio to Arona. The return journey was made via Varese and Gallarate. Altogether the dirigible was in the air for 2J hours. The "Spiess" Airship on Trial. FRANCE'S rigid airship, the " Spiess," made another appear ance on the nth inst, when it cruised for two hours over Versailles, Chaville and St. Cyr, and then had to return to the shelter of its hangar on account of rain. Six passengers were on board. More Zeppelins for German Government. IN addition to the five Zeppelins, of which two are tor the Army and one for the Navy, now being built at Friedrichschafen, it is stated that the construction of two more for the Army will shortly be commenced in new works at Potsdam. A trio of Ble'riot aeroplages at the Paris Salon. 1414 Flight" Copyright.
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