| 摘要 |
An apparatus for inflating tires of different sizes, in which a control unit operates to alternatingly connect the tire with a pressurized air source and a contact manometer, respectively. The length of the inflation periods may be adjusted according to the volume of the tire for achieving a maximized effective rate of inflation for each tire size. Two potentionmeters and their associated scales are calibrated in "tire diameter" and "tire width", respectively, whereby their combined series resistance will be analogous to the tire volume when the potentiometers are set in simple accordance with the "diameter" and "width" markings as printed on the side of all tires.
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