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File:Bury - Modèles de serrurerie - planche 39.jpg

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Français : Cette planche contient une toiture en vitrages, ou lanterne, placée au-dessus d’un escalier exécutée depuis peu au palais du ministre des finances, rue de Rivoli.

On en a rapporté exactement tous les détails, pour ne laisser aucune incertitude sur la forme et l’emmanchement de ses différentes parties. Quatre branches diagonales, ou grands arêtiers, qui reçoivent ceux de remplissage, sont réunis à leur rencontre, dans le centre, au moyen d’un noyau en fer qui sert de clef et porte un tirefond. Les différentes coupes de ce noyau sont recouvertes par une espèce de calotte en tôle, et les vitres sont garanties par des châssis grillagés placés au-dessus.

On voit, dans les détails, la construction de tous ces membres et la manière dont les carreaux de vitres posent sur les arêtiers et y sont maintenus au moyen d’un recouvrement.
Date
Source Jean-Baptiste Marie Bury, Modèles de serrurerie choisis parmi ce que Paris offre de plus remarquable sous le rapport de la forme, de la décoration et de la sûreté
Author exemples gravés géométriquement par MM. Normand, Hibon, Thierry, Olivier, etc.,

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