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Lap Ring.
Patent for a new and improved lap ring (or link). This design utilizes a hinge to allow for half of the ring to part from the other half, which creates a larger opening and allows for connection with a wider range of things (e.g., larger clevises).
Date:
October 25, 1881
Creator:
Matthews, James Levi
System:
The Portal to Texas History
Hoisting Device
Patent for a hoisting device. Illustration included.
Date:
October 25, 1910
Creator:
Sims, James L.
System:
The Portal to Texas History