File:Bending steel girders officials steel industry.tif

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English: Bending huge steel girders.
Author
Harris & Ewing, photographer
Title
English: Bending huge steel girders.
Description
English: Bending huge steel girders. Washington, D.C., Sept. 23. At the U.S. Bureau of Standards officials were witnessing the testing of rigid steel frame knees that are used in grade eliminations such as over-passes, under-passes, bridges, etc. This photo shows the girder or knee placed into the huge 600,000 lb. testing machine in preparation for the test. This welded rigid steel frame knee which was designed to withstand 50,000 pounds had a maximum load of 153,600 lbs placed on it before it buckled.
Date [1937 September 23]
Accession number
  • LC-DIG-hec-23410 (digital file from original negative)
  • Call Number: LC-H22- D-2403 [P&P]
Notes
  • Title from unverified caption data received with the Harris & Ewing Collection.
  • Date from related adjacent neg. LC-H22-2404.
  • Gift; Harris & Ewing, Inc. 1955.
  • General information about the Harris & Ewing Collection is available at http://hdl.loc.gov/loc.pnp/pp.hec
  • Temp. note: Batch five.
Source
This image is available from the United States Library of Congress's Prints and Photographs division
under the digital ID hec.23410.
This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

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(Reusing this file)		 Rights Advisory: No known restrictions on publication.
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Bending huge steel girders.jpg

Licensing[edit]

Public domain This work is from the Harris & Ewing collection at the Library of Congress. According to the library, there are no known copyright restrictions on the use of this work.

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