[2248]. Elbow seam.
[2249]. Folded pipe seam.
PLATE AND BAR JOINTS.
[2250]. Junction of T iron, plate and T or L iron verticals.
[2251]. Gusset plate corner stiffener.
[2252]. Plate end for a tie rod.
[2253]. H iron junction, as in a floor framing.
[2254]. Gusset plate junction for a braced framing.
[2255]. Gusset plate junction for H girders of equal depths.