Abstract
A new metallic packing for ensuring the tightness of the stuffing box was invented, and some properties of the packing were investigated. Metallic packing alone is not enough to attain the perfect tightness of air at constant high pressure ; but if an oil box, containing some viscous liquid in it, be placed between the packing rings, no leakage of air and only a few drops of the liquid per minute pushed out will be observed. Results of the experiments of our metallic packing without any oil box employed for the 4 stage air compressor were much more satisfactory in comparison with ordinary non metallic packings. Above 40 atms. of the air pressure the frictional resistance of packing becomes considerable and also its wear will not be negligible.
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