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Royalty-free historical industrial black and white people stock photo of a male worker placing a cylinder into a steel compartment filled with water before pressure is applied. By means of a hand crank, he rotates at all points, Firestone, Akron, Ohio, 1942. Conversion. Beverage containers to aviation oxygen cylinders. With the outside and inside of non-shatterable oxygen cylinder for high altitude flying complete, several rigorous tests are applied to guarantee safety. Every cylinder off the production line of the metal division of a large Eastern rubber factory is hydrostatically tested at 800 pounds pressure, twice the pressure maintained in the cylinder under normal use, to test the strength of the welding. It is then given air test at 400 pounds pressure. [0003-0801-2320-2252] by 0003
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Keywords
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