and raising it to a proper height for a free fall, is the form of Kinda#39;s invention. The tool to the development of which the oil ... a sludger, which is a plain cylindrical iron tank with a stem- valve at the bottom. (See Figs. 59 and 111.) To save time in anbsp;...
Title | : | A Manual of Mining |
Author | : | Magnus Colbjørn Ihlseng |
Publisher | : | - 1892 |
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