Lanyon Zinc Co. v. Brown

THAYER, Circuit Judge.

This is an appeal from an order granting an injunction pendente lite in a patent case. The infringing device, the use of which was restrained, is an ore-roasting furnace, manufactured in full accordance with letters patent No. 523,013, issued to Alfred Ropp in January, 1895. This patent was considered by this court in the case of Extraction Co. v. Brown, 43 C. C. A. 568, 104 Fed. 345, and it was held that an ore-roasting furnace constructed in accordance with the specifications of that patent, with a supplemental chamber designed to protect the rabble operating mechanism…