Ken,
ThrowIng aside the brace configuration that David is describing, you have to realize that terminology for various components differ from your side of the pond to ours. Girts here often are short horizontal pieces that fall into bents. A bent is typically referred to as you say a 'cross frame'. Middling, girding, minor, major, underling - all the various modifiers you used are not commonly used here.
Mike
Last edited by bmike; 11/16/11 12:42 AM.