Underground Pneumatic Boring
Underground pneumatic piercing tools are often referrd to as hogs, air hogs, or pneuma gophers. The tool is used to bore a hole underground between two points without disturbing the surface ground. This open air chamber is referred to as the bore hole and is used to either run ducting for product or the raw product itself between the two points.
Read more about Underground Pneumatic Boring: Uses, How It Works, Performing A Bore, Drawbacks, See Also
Famous quotes containing the words underground, pneumatic and/or boring:
“The only free road, the Underground Railroad, is owned and managed by the Vigilant Committee. They have tunneled under the whole breadth of the land.”
—Henry David Thoreau (1817–1862)
“Food probably has a very great influence on the condition of men. Wine exercises a more visible influence, food does it more slowly but perhaps just as surely. Who knows if a well-prepared soup was not responsible for the pneumatic pump or a poor one for a war?”
—G.C. (Georg Christoph)
“A worm is as good a traveler as a grasshopper or a cricket, and a much wiser settler. With all their activity these do not hop away from drought nor forward to summer. We do not avoid evil by fleeing before it, but by rising above or diving below its plane; as the worm escapes drought and frost by boring a few inches deeper.”
—Henry David Thoreau (1817–1862)