Record Details
Diamond Drill and Operator
Washington State University Libraries
View Original Item
| Field | Value | |
| Title |
Diamond Drill and Operator
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| Description |
This is a diamond drill rig in operation. A compressed-air motor rapidly spins the hollow shaft, down which water is forced to cool the bit, and carry away the cuttings. The core specimen rises in the hollow drill stem as the bit cuts downward. Diamond drilling is the oldest form of core drilling known. Scientists claim that the ancient Egyptians used a form of diamond core drill. About 1863, in his efforts to make a core drill wear longer, a French engineer invented the modern diamond...
In a study to determine the best location for the dam Engineers used diamond drilling to determine the composition of the Grand Coulee Dam site. Later they would utilize diamond drills to create grout holes that were pressure grouted to fill cracks and crevices in the light colored granite foundation. (Clifford R. Koester. A History of the Columbia Basin Project II, 164) |
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| Relation |
Part of Western Waters Digital Library: http://harvester.lib.utah.edu/wwdl/; Photographer Unknown
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| Creator |
Clifford R. Koester
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| Subject |
Construction equipment--Washington (State)--Grand Coulee Dam; Drilling and Boring Machinery--Washington (State)--Grand Coulee Dam; Calyx drill core--Washington (State)--Grand Coulee Dam
Construction equipment; Laborers; Surveying; Drilling and boring machinery |
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| Type |
Photograph
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| Coverage |
United States--Washington (State)--Grant County--Grand Coulee Dam site, Grand Coulee Dam (Wash.)
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| Identifier |
709b1v2p165.jpg
http://kaga.wsulibs.wsu.edu/u?/koester,1018 |
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| Publisher |
Manuscripts, Archives, and Special Collections, Washington State University Libraries: http://www.wsulibs.wsu.edu/holland/masc/masc.htm
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| Source |
A History of the Columbia Basin Project (Vol. 2, Page 165)-Cage 709: Clifford R. Koester Papers, 1927-1972: http://www.wsulibs.wsu.edu/holland/masc/finders/cg709.htm
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| Rights |
To order a reproduction please see: http://www.wsulibs.wsu.edu/holland/masc/policies.htm , or contact Washington State University Libraries, Manuscripts, Archives, and Special Collections: (509) 335-6691.
For permission to publish please contact Washington State University Libraries, Manuscripts, Archives, and Special Collections: (509) 335-6691. |
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| Format |
Original photographic prints were scanned at 24 bit 3000 pixels by the long side for master TIFF files on an Plustek OpticBook 3600 Plus. Also, 24 bit 150 PPI JPEGs were created with the OpticBook 3600 Plus and added to the CONTENTdm database at the WSU Libraries
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| Language |
English
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| Date |
2008
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