Strength of Welded Joints in Tubular Members for Aircraft
A 1931 technical report from the National Advisory Committee for Aeronautics, published in the United States for aircraft engineers and researchers, on the strength of welded joints in tubular aircraft members. Its pictures are halftone photographs of plain steel test tubes and T-shaped welded joints, with some photographs of oxy-acetylene welding torches and regulators, showing the even, cylindrical forms and weld seams a designer might draw on for industrial or machine-part imagery.
