Definition of Drill rod
1. Noun. Carbon steel used for rock drills and dowels.
Drill Rod Pictures
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Lexicographical Neighbors of Drill Rod
Literary usage of Drill rod
Below you will find example usage of this term as found in modern and/or classical literature:
1. The New International Encyclopædia edited by Daniel Coit Gilman, Harry Thurston Peck, Frank Moore Colby (1903)
"When the drill-rod with the bit attached is rotated and thrust forward, the bit cuts an annular hole in the rock, the drillings being removed from the hole ..."
2. The Encyclopaedia Britannica: “a” Dictionary of Arts, Sciences, Literature edited by Hugh Chisholm (1910)
"through gearing, the drill-rod is rotated. ... than the screw-shaft, so that the drill-rod ¡s fed downward a small fraction of an inch for each revolution. ..."
3. The Civil Engineer's Pocket-book by John Cresson Trautwine (1919)
"In the former, the drill-rod н a lung tube, revolving about its axis. ... The drill-rod is fed forward, or into the hole, as the drilling proceeds. ..."
4. The Electrical Engineer (1891)
"The drill rod is rotated at the rate of 400 revolutions per minute without any ... The drill rod is geared by a single set of gears to an electric motor, ..."
5. Appletons' Cyclopædia of Applied Mechanics: A Dictionary of Mechanical by Appleton, firm, publishers, New York (1880)
"By means of this pump a constant stream of water is forced down through the hollow drill-rod, thereby keeping the bit cool and the hole bored clear of ..."
6. Handbook of Rock Excavation, Methods and Cost by Halbert Powers Gillette (1916)
"the drill rod. Throw a handful of shot into the drive-pipe and one over the tools into ... Connect the drill rod to the spindle by means of the coupling. ..."