OCR Text |
Show Automobile Tires Hold Up Under Much Pressure That automobile tires will hold up under pressure many times greater than the pressure that will blow up an ordinary steam boiler was demonstrated demon-strated In a most unique test by tire engineers. A pressure of 2,000 pounds was applied to an ordinary stock tire by means of hydraulic pumps without any damage to the tire. Water was pumped Into the tire through the valve stem at a pressure of 2,000 pounds to the square inch. Hydraulic pressure was applied for the test in the absence of air pressure great enough to make the test |