Here is an English translation of European Patent laying-open publication 524,872, "MONTGOLFIERE", to Domen..... translated (roughly) by myself...
And here are the original page images (in French) for this patent "Montgolfiere"; a balance has been struck between size and readability:
Page 1 ...(cover page) Page 2 ...(start of the description) Page 3 ... Page 4 ... Page 5 ... Page 6 ... Page 7 ... Page 8 ...(drawing) Page 9 ...(drawing) Back to the prior art page... Back to the top page... ---ooo000ooo---