Resource Type

Spring Hinge (open access)

Spring Hinge

Patent for providing a "door-hinge of simple and durable construction swinging freely either way from a spring which is fast at one end, but adapted at the other to ride freely up and down the doorjamb" (lines 9-12) including an illustration.
Date: January 21, 1902
Creator: Kincaid, Michael A. D.
System: The Portal to Texas History