Translations for tripod in French

Here are paragraphs from public domain books translated:
The telescope, a formidable instrument mounted upon a tripod, stood upon the flat leads of the house. Frankland clapped his eye to it and gave a cry of satisfaction. Un énorme télescope, monté sur un trépied, encombrait le faîte de la maison. Avidement, Frankland y appliqua son œil et poussa un cri de satisfaction.
The Hound of the Baskervilles, by Arthur Conan Doyle Le Chien des Baskerville, de Arthur Conan Doyle