Copper Cable Web Inside Pier Plates
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Title |
Copper Cable Web Inside Pier Plates |
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Description |
Here is shown the manner in which the copper cable was laced thru the reinforcing web on the inside of the pier plates. When current is sent thru this cable it will cause the steel plates to become warm by electromagnetic induction, thus preventing the formation of ice on its exposed surface. more than 9 miles of cable was used in this installation. The system is designed to deliver 70 watts per square foot of plate surface, with 78% of the heat being developed directly in the iron itself. This installation is the first time eddy currents have been used for such heating. |
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Date Original |
1930/1945 |
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Author |
Koester, Clifford R.; photographer unknown |
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Library of Congress Subject Headings |
United States--Washington (State)--Grant County--Grand Coulee Dam site; United States--Washington (State)--Grant County--Grand Coulee Dam |
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TGM Subject |
Spillways--Washington--Grand Coulee Dam |
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Type |
Image |
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Genre |
Photographs |
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Geographic Area |
United States--Washington (State)--Grant County--Grand Coulee Dam site |
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Identifier |
cg709b1v3p284.jpg |
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Source |
Is found in A History of the Columbia Basin Project (vol. 3, pg. 284), Cage 709, Clifford R. Koester Papers http://libraries.wsu.edu/masc/finders/cg709.htm at Washington State University Libraries' Manuscripts, Archives, and Special Collections (MASC) http://libraries.wsu.edu/masc |
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Rights |
http://rightsstatements.org/vocab/NKC/1.0/ |
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Rights Notes |
No known copyright. Item is in public domain as it was created by United States government. |
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Digital 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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Notes |
Part of Western Waters Digital Library, http://westernwaters.org/ |
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Language |
English |
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Rating |
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