Description: Patent for a new and improved lock. This design consists "[i]n a lock, the combination of the latch, the spring pressing upon it, and the trip-lever, provided with upper and lower arms and the former serving as a seat for the spring and the latter having a projection for the key to act upon" (lines 97-102).
Date: November 10, 1885
Creator: Hayden, Miles & Dixon, William Cason
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department