. Deep borehole surveys and problems. Boring. 186 DEEP BOREHOLE SURVEYS AND PROBLEMS Haussmann's Apparatus.âThis apparatus was invented by Prof. Karl Haussmann at the Technical High School in Aix la Chapelle in 1907. It is essentially a double magnetic needle, spirit level and photographic device and has com- Surface 6160, N50E 603O'N4O°E- 5900M44°E-: 5812'' â 5500';. '6050'45° , ,â 6l60'45°Bo-HomofDeflecfion 6600^8 &656'°gof fo^ of'fiole Fig. 125.âCourse of a South African drill-hole, vertical and horizontal views. {After J. I. Hoffmann by permission of the Institution of Mining and
. Deep borehole surveys and problems. Boring. 186 DEEP BOREHOLE SURVEYS AND PROBLEMS Haussmann's Apparatus.âThis apparatus was invented by Prof. Karl Haussmann at the Technical High School in Aix la Chapelle in 1907. It is essentially a double magnetic needle, spirit level and photographic device and has com- Surface 6160, N50E 603O'N4O°E- 5900M44°E-: 5812'' â 5500';. '6050'45° , ,â 6l60'45°Bo-HomofDeflecfion 6600^8 &656'°gof fo^ of'fiole Fig. 125.âCourse of a South African drill-hole, vertical and horizontal views. {After J. I. Hoffmann by permission of the Institution of Mining and Metallurgy, London.) manded such respect for a long time on the Continent that we shall enter into some detail regarding it. Figure 126 shows the assembled plumbing cylinder with guide springs and an attachment for the core cather below and one for the rope or rods above. The conductor cable runs along the rods and down into the interior of the cylin-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Haddock, M. H. (Marshall Henry). New York, McGraw-Hill
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Keywords: ., bookcentury1900, bookcollectionb, bookpublishernewyorkmcgrawhill
