Journal - South African Institute of Mining and Metallurgy . manufactured intwo different types. In the one type the regener-ator may always be refilled, while in the othertype the complete regenerator is thrown awayafter use. The air bags, which act - - voirs,are mounted between the regenerator and the30 as to protect them and also to preventtheir being compressed. They are of such a size, andare connected to the circulating current of air insuch a manner, that even in the event of thehardest work being done, a sufficient supply of 3 The Journal of The Chemical, Metallurgical and Minimi Socie
Journal - South African Institute of Mining and Metallurgy . manufactured intwo different types. In the one type the regener-ator may always be refilled, while in the othertype the complete regenerator is thrown awayafter use. The air bags, which act - - voirs,are mounted between the regenerator and the30 as to protect them and also to preventtheir being compressed. They are of such a size, andare connected to the circulating current of air insuch a manner, that even in the event of thehardest work being done, a sufficient supply of 3 The Journal of The Chemical, Metallurgical and Minimi Society of South Africa. April 190S fresh air is available, and they also contain suffi-cient room to permit of comfortable exhalation. The mode of operation of the apparatus isbriefly as follows :—After the cheek valve 2 hasbeen opened, the compressed oxygen, containedin the two steel bottles passes through theT-iieces 4, which is provided with a pressuregauge 3. to the reducing valve •, which i> pro-vided with a safety valve 6. The pressure of the. *^g$^/.£^j£i^?&,&&Bi iM
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Keywords: ., bookcentury1800, booksubjectmetall, booksubjectmineralindustries
