Hot Springs National Park officials closed the valves to spigots at four public access points, where the 143-degree mineral water normally flows.

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Ford's first attempt at a genuine four-wheel vehicle, which he called the Quadricycle, used valves adapted from a steam engine and didn't have a reverse gear.

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All four froze, but they beat the blaze and thawed the frozen pumps, valves and fittings with propane heaters.

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