Excelsior Elevator Guard & Hatch Cover Co. v. Foote

TOWNSEND, District Judge.

The complainant herein alleges infringement of the first claim of its patent, No. 278,528, for means for closing and controlling hoistway covers, granted to Daniel Fraser May 29, 1883, which claim is as follows:

“(1) The combination, with a number of hinged doors and a cord or chain for opening and closing them, of a number of catches for engaging with the doors when opened, and serving to hold them open independently of the cord or chain, and a connection between the catch of one door and an adjacent door, so that .the closing of the last-mentioned door will effect…