File:Schema.penture.medievale.2.png

...Si même (fig. 9) nous formons la bande principale au moyen de plusieurs tiges juxtaposées et soudées seulement par des embrasses, nous obtiendrons également une résistance plus grande et nous aurons moins à craindre les brisures. En supposant donc la bande principale D formée de trois tiges E, F, G (voyez la section H) soudées par les embrasses I, K, cette bande aura autant de roide qu'une barre pleine, sera moins sujette à se briser et sera plus légère...

This image comes from Dictionary of French Architecture from 11th to 16th Century (1856) by Eugène Viollet-le-Duc (1814-1879).

	This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

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