Hinged Hay Derrick
This is a hay lifting device composed of one mast or pole which is hinged freely at the bottom. It is controlled by about four lines powered by some means such as man hauling, so that the pole can move in all four directions. A line runs up it and over its top with a hook on the end, like with a crane.
Government Printing Office The Official Gazette of the United States Patent Office (Washington, DC: Government Printing Office, 1895)
Courtesy the private collection of Roy Winkelman