File:Construction activities at Larner-Johnson flow control valve and scroll case in power generating unit no 1, Gorge Dam Powerhouse (SPWS 224).jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Construction_activities_at_Larner-Johnson_flow_control_valve_and_scroll_case_in_power_generating_unit_no_1,_Gorge_Dam_Powerhouse_(SPWS_224).jpg ‎(768 × 503 pixels, file size: 65 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents
The categories of this image need checking. You can do so here.
  • Please remove redundant categories and try to put this image in the most specific category/categories.
  • You can remove this template by clicking here (or on the first line).

This image was automatically transferred from the collections of the University of Washington. While certainly the majority of metadata in their database is correct, it is not necessarily written by individuals who are expert on the material they are describing. Such images often have incorrect dates, locations, or other information.

If you can verify that this information is correct, or correct it if it isn't, please do so and remove this template. Also, if you are correcting information, please also let the library know so that they can update the metadata on their site. You can contact UW LIBRARIES MSCUA at photos@uw.edu

Summary[edit]

English: Construction activities at Larner-Johnson flow control valve and scroll case in power generating unit no. 1, Gorge Dam Powerhouse, August 10, 1923   (Wikidata search (Cirrus search) Wikidata query (SPARQL)  Create new Wikidata item based on this file)
Photographer
Unknown authorUnknown author
Title
English: Construction activities at Larner-Johnson flow control valve and scroll case in power generating unit no. 1, Gorge Dam Powerhouse, August 10, 1923
Description
English: Photographs of the Skagit River Hydroelectric Project constructed between 1918-1961.

The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.

Water flows from the penstock through the dam and into a spiral "scroll case". Directed through slots on the inner diameter of the scroll case the water falls through the turbine, causing it to spin. Finally the water enters the "draft tube". The larger diameter of this steel outlet tube slows the water before it exits the dam on the downstream side. A Larner-Johnson valve is used to control the outflow of water.

Caption on image: Johnson Valve and Scross Case, Unit #1, Gorge Plant. 8-10-23. E-500

PH Coll 45.1-52b

  • Subjects (LCSH): Hydroelectric power plants--Washington (State)--Design and construction; Valves; Larner-Johnson Company
Depicted place Gorge Dam
Date Taken on 10 August 1923
Medium
English: silver gelatin, b&w
institution QS:P195,Q219563
Current location
University of Washington: Special Collections
Accession number
224
Source
English: Seattle Power and Water Supply Collection
Permission
(Reusing this file)
Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
Order Number
InfoField
WWDL0370

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current16:26, 16 July 2021Thumbnail for version as of 16:26, 16 July 2021768 × 503 (65 KB)BMacZeroBot (talk | contribs)Automatic lossless crop (watermark)
16:26, 16 July 2021Thumbnail for version as of 16:26, 16 July 2021768 × 533 (68 KB)BMacZeroBot (talk | contribs)Batch upload (Commons:Batch uploading/University of Washington Digital Collections)

You cannot overwrite this file.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Construction_activities_at_Larner-Johnson_flow_control_valve_and_scroll_case_in_power_generating_unit_no_1,_Gorge_Dam_Powerhouse_(SPWS_224).jpg&oldid=867688562"