ARRAY OF CHALLENGES The size and pressure rating of the valves made mounting the valves and pressing the gaskets a demanding task Valves manufacturer AZ-Armaturen (AZ) South Africa delivered a total ...
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American publisher Charles Knight was not at all impressed with his new 1901 Knox ‘gasoline runabout’. Like some other cars of the era, its four-stroke engine relied on a single valve to permit both ...
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