 | William Newton - 1823 - 384 pages
...in its descent the workmen continually walk round, by which the hole is made smooth and cylindrical. In the progress of the boring, frequent veins of water are passed through, but as these^are small streams, and perhaps impregnated with mineral substances, the operation is carried... | |
 | William Newton, Charles Frederick Partington - Industrial arts - 1823 - 384 pages
...in its descent the workmen continually walk round, by which the hole is made smooth and cylindrical. In the progress of the boring, frequent veins of water are passed through, but as these are small streams, and perhaps impregnated with mineral substances, the operation is carried... | |
 | 1823 - 386 pages
...in its descent the workmen continually walk round, by which the hole is made smooth and cylindrical. In the progress of the boring, frequent veins of water are passed through, but as these are small streams, and perhaps impregnated with mineral substances, the operation is carried... | |
 | Natural history - 1829 - 424 pages
...its descent, the workmen continually walk round, by which the hole is made smooth and cylindri. cal- In the progress of the boring, frequent veins of water are passed through ; but as these are small streams, and perhaps impregnated with mineral substance*, the operation is carried... | |
 | Francis Lieber, Edward Wigglesworth, Thomas Gamaliel Bradford, Henry Vethake - Encyclopedias and dictionaries - 1830 - 612 pages
...— Boring for water has been, of late, successfully employed in obtaining a supply without sinking u well. In the progress of the boring, frequent veins...by a pump. To exclude mineral waters, land-springs, \ r., the hole is generally cased with a metallic pipe. BORNEO, next to New Holland, the largest island... | |
 | Encyclopaedia Americana - 1833 - 548 pages
...its descent, the workmen continually walk round, by which the hole is made smooth and cylindrical. In the progress of the boring, frequent veins of water are passed through ; but, as these are small streams, and perhaps impregnated will) mineral substances, the operation is carried... | |
 | Francis Lieber, Edward Wigglesworth - Encyclopedias and dictionaries - 1835 - 608 pages
...uncoils itself successively upon the drill, and is aided by a weight or fly. — Boring for water ha?' been, of late, successfully employed in obtaining...the hole is generally cased with a metallic pipe. BORNEO, next to New Holland, the largest island in the world, is about 800 miles long and 700 broad,... | |
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... the sides smooth previous to putting in the pipe. This chisel is attached to rods and to the handle, as before described, and in its descent the workmen continually walk round, by which the hole is made smooth and cylindrical. 
