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Show "do not use poor : tubes in your ; CASINGS Goodyear Man Says Inferior Inner Seriously Handicap Handi-cap Mileage Delivery , f ,T Is surprising bow many mo- lorlsts are satisfied to use in-I in-I ferior tubes, although at the , same time demanding the very best of casings." states T. B. Trent, brant h manager of the Goodyear Tire and Kilbbfr ic.mpiuiy. TbeHMie of a poor tube In good Canute seriously handicaps the casing In delivering u hulll-ln mileage, for If I'm tube fails to perform Its part amerly and faithfully, the casing Is It a merrv. 7 "The work of a lube Is very simple. It has only to hold air and keep on holding air. It doee not have to withstand with-stand external wear. Yet the most rugg-d rasing cannot deliver all the mileage built Into it unless the tube inside maintains a sufficient air cusn- "in comparison with the cost of the caJillig a tube costs relatively little, but a noor tube can very easily become the "Tiioat fxr'n'tvr twi "f "f "" ;""; ment. Much mere tire troub.e than la commonly supposed ia catiaed by poor tuhea rather than by poor casings. Good tubes add to tire life. Many motorists could actually afford to throw away the tuliea they are using and replace them with quality tubes. They would a ax's mini' i In the "' " nothing of the relief from the annoyance. "In Goodyear tube construction wa build them up layer on layer, of pure sum. with each laver Inspected for sand holes and bubWeaj. as near to alr tlghtnesa a an elastic material will permit. Air is a gas and -very slowly permeates many kinds of solids. To combat this the purest rubber obtainable obtain-able la used. "Before leaving tha factory all our t ulies are Inflated, and tested for twenty-four hours. The slightest loss of air In that time bars a tube from shipment. This ia what we call tha iwenty-four-hour teat.' it is a matter of special pride with us. too, that tha valve patch Is vulcanised right In the tuba, and not simply stuck on. This makes for Jeakproof tubes." |