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| View Original: | Bending steel steel frame knees.tif (7985x10081) | |||
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| Keywords: Bending steel steel frame knees.tif Photograph en Bending steel girders Washington D C Sept 23 During the testing of the rigid steel frame knees at the Bureau of Standards the officials were constantly watching the girders to determine the exact moment that the load buckled or weakened the knees This was done as the huge 600 000 lb testing machine applied the pressure to the steel knees 9/23/37 Harris Ewing photographer 1937 September 23 1 negative glass 4 x 5 in or smaller LOC-image hec 23413 accession number LC-DIG-hec-23413 digital file from original negative Call Number LC-H22- D-2406 P P Rights Advisory No known restrictions on publication Title from unverified caption data received with the Harris Ewing Collection 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 Bending steel girders rigid steel frame knees jpg PD-Harris-Ewing National Bureau of Standards Uploaded with UploadWizard | ||||