Facsimile of the sketch-book of Wilars de Honecort, an architect of the thirteenth century : illustrated by commentaries and descriptions (1859)
Villard, de Honnecourt, active 13th century, Lassus, Jean Baptiste Antoine, 1807-1857, Darcel, Alfred, 1818-1893, Quicherat, Jules Étienne Joseph, 1814-1882, Willis, Robert, 1799-1878 · London : John Henry and James Parker · leaf 347
s the rope is pulled at an acute angle, and thus draws it inwards towards the shoulder of the spike; it will even remain if the rope be pulled at right angles to the verge, or at an angle a little greater than a right angle ; but when the angle exceeds the right angle considerably, the rope,… … Pig. 28.— Trebuehet, from a German miniature of the fourteenth century. The end of the verge must, in the next place, be hauled down to prepare for another discharge. The mode of performing this operation varies in different
Bibliothèque nationale de France · Architecture, Medieval · Drawing, French · Manuscripts, French
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
