A SAFETY INNER TUBE
NO SUDDEN DEFLATION
An American tire company has put on the market a safety inner tube. It comprises two tubes, one inside the other, joined at the base. , A single vent hole connects the two chambers. The outside tube is similar in function, and appearance to an ordinary tube and fits against the inside of the tire casing, while the inside tube, which is built of two piles of fabric, floats within the outer tube. Inflation is done in the usual way, the vent hole allowing air to pass from the inner to the outer chamber. In ordinary, service the inner tube is, therefore, not subjected to strain. It floats inside the tube without chafing.
When a blow-out occurs the . air escapes from the outside chamber immediately; but from the inside chamber it can escape only through the single small vent hole. Thus only a portion'of the air is lost in the blowout, and the tire drops lightly to ride on the inner fabric carcass, which loses its Air very slowly. This, the manufacturers explain, permits the car to continue under perfect control, giving the driver time to stop without danger-
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Bibliographic details
Evening Post, Volume CXIX, Issue 134, 8 June 1935, Page 30
Word Count
195A SAFETY INNER TUBE Evening Post, Volume CXIX, Issue 134, 8 June 1935, Page 30
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