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Steel bending. Washington, D.C., Sept. 23. Photo shows the welded steel knees in the 600,000 lb. testing machine at the U.S. Bureau of Standards today, as it buckled under 153,600 lb. maximum load. This rigid steel frame knee was designed to withstand 60,000 lbs. 9/23/37
Public domain

Steel bending. Washington, D.C., Sept. 23. Photo shows the welded steel knees in the 600,000 lb. testing machine at the U.S. Bureau of Standards today, as it buckled under 153,600 lb. maximum load. This rigid steel frame knee was designed to withstand 60,000 lbs. 9/23/37

Harris & Ewing · 1937-01-01 · photo, print, drawing

From the collection of Library of Congress. Free to download, adapt and use — no permission needed.

Subjects
glass negativesunited statesdistrict of columbiawashington (d.c.)
Credit lineSteel bending. Washington, D.C., Sept. 23. Photo shows the welded steel knees in the 600,000 lb. testing machine at the U.S. Bureau of Standards today, as it buckled under 153,600 lb. maximum load. Th. 1937-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.
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