« Oriel window bays » or « suspended windows over the street or gardens » appears in Europe in the XVII century. With the technic of large glass panels the habitable overhanging rooms of glass became gardens. Found in town plans in 1882 (Paris) it gathers « balcon-serres » for plants, oriel window bay for cross views. A light structure of cristal, developing up and down, growing more and more massive with stone and finaly covering up the whole frontage of concret houses:
Press here: Video: Balcon-serre, Oriel et bow-window
At for step we have studed historical structures like: « roman lodges », « bretèches », « échaugettes » connected to towers, front doors and theaters. Next we have searched moderne structures like: the « mirador » in Spain, the oriel window bay in Engand, the « erker » in Germany and the « kiosque moucharabie » in the meditarrean see and India.
In Paris with the law of 1882: » Light structures in between two balconies » of first use on main floor, third and forth.
Great success of crystal on the stone frontages in the 1880ies, it became a master piece of stone in 1890ies. Usefull for botanical gardens, living-rooms and roof tops, it was a sign of light in the apartement. In big ones it could have be the window of a music room. From 1896 to 1902 it touches the fifth floor connected to the roof: little suspended towers next to lodges. And at the end of the XIX century it was permitted to build a suspended bay window over the street for 1/3 of the frontage(…..)
First examples of this kind of window were made of wood, stone or ceramic but at the end of the XIX century the metal industry created a masterpiece of cristal opened to the light.