![Testing strength of glass panels. Washington, D.C., June 21. With glass blocks being used more and more these days in the construction [of] buildings, The National Bureau of Standards is conducting extensive tests to determine how much wind pressure the panels will stand. So far the panels have resisted 633 pounds wind load. Pictured conducting the tests are, left to right: Dr. C.H. Hahner, R.C. Carter, and A.S. Endler, all of the Bureau, 6/21/38](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzIwMTUvMTEvMjUvdGVzdGluZy1zdHJlbmd0aC1vZi1nbGFzcy1wYW5lbHMtd2FzaGluZ3Rvbi1kYy1qdW5lLTIxLXdpdGgtZ2xhc3MtYmxvY2tzLWJlaW5nLTEwMjQuanBn/320/397/jpg "Testing strength of glass panels. Washington, D.C., June 21. With glass blocks being used more and more these days in the construction [of] buildings, The National Bureau of Standards is conducting extensive tests to determine how much wind pressure the panels will stand. So far the panels have resisted 633 pounds wind load. Pictured conducting the tests are, left to right: Dr. C.H. Hahner, R.C. Carter, and A.S. Endler, all of the Bureau, 6/21/38")
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![Washington's prominent figures listen to Marian Anderson's singing. Washington, D.C., April 9. Behind Marian Anderson, the heroic statue of Lincoln; beside her, Cabinet members and Senators; before her a crowd of 75,000 black and white listeners. Left to right - Secretary of the Treasury Henry Morganthau, Mrs. Morganthau, Secretary of the Interior Harold Ickes, [...] at the piano, Marian Anderson. 4-9-39](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MzkvMDEvMDEvd2FzaGluZ3RvbnMtcHJvbWluZW50LWZpZ3VyZXMtbGlzdGVuLXRvLW1hcmlhbi1hbmRlcnNvbnMtc2luZ2luZy13YXNoaW5ndG9uLTY0MC5qcGc%3D/40/32/webp "Washington's prominent figures listen to Marian Anderson's singing. Washington, D.C., April 9. Behind Marian Anderson, the heroic statue of Lincoln; beside her, Cabinet members and Senators; before her a crowd of 75,000 black and white listeners. Left to right - Secretary of the Treasury Henry Morganthau, Mrs. Morganthau, Secretary of the Interior Harold Ickes, [...] at the piano, Marian Anderson. 4-9-39")
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![Bending steel girders. Washington, D.C., Sept. 23. Officials of the steel industry and the U.S. Bureau of Standards inspect one of the large riveted steel frame knees that were placed thru the test [...] U.S. Bureau today. This frame designed to withstand 68,000 lbs carried a maximum load of 168,000 lbs before it showed signs of weakening. Photo shows left to right inspecting the beam after the test: Dr. A.H. Starng of the Bureau of Standards, Everett Chapman, President of the Lukeneeld Inc. of Coatesville, Pennsylvania, and F.H. Frankland, Chief Engineer of the American Institute of Steel Construction, New York City, N.Y., 9/23/37](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzIwMTUvMTEvMjUvYmVuZGluZy1zdGVlbC1naXJkZXJzLXdhc2hpbmd0b24tZGMtc2VwdC0yMy1vZmZpY2lhbHMtb2YtdGhlLXN0ZWVsLWluZHVzdHJ5LTY0MC5qcGc%3D/40/31/webp "Bending steel girders. Washington, D.C., Sept. 23. Officials of the steel industry and the U.S. Bureau of Standards inspect one of the large riveted steel frame knees that were placed thru the test [...] U.S. Bureau today. This frame designed to withstand 68,000 lbs carried a maximum load of 168,000 lbs before it showed signs of weakening. Photo shows left to right inspecting the beam after the test: Dr. A.H. Starng of the Bureau of Standards, Everett Chapman, President of the Lukeneeld Inc. of Coatesville, Pennsylvania, and F.H. Frankland, Chief Engineer of the American Institute of Steel Construction, New York City, N.Y., 9/23/37")
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Testing strength of glass panels. Washington, D.C., June 21. With glass blocks being used more and more these days in the construction [of] buildings, The National Bureau of Standards is conducting extensive tests to determine how much wind pressure the panels will stand. So far the panels have resisted 633 pounds wind load. Pictured conducting the tests are, left to right: Dr. C.H. Hahner, R.C. Carter, and A.S. Endler, all of the Bureau, 6/21/38
Summary
Public domain historic photograph of Washington DC, free to use, no copyright restrictions image - Picryl description
Tags
Date
1938
Contributors
Harris & Ewing, photographer
Location
Washington, District of Columbia, United States, 38.90719, -77.03687
Source
Library of Congress
Copyright info
No known restrictions on publication.
