Description: Patent for a pipe-wrench that is a "pair of tongs [made] for holding rods or pipes of different diameter so that, when between the jaws, they will be held by an elastic cam pressure, without any further muscular exertion by the smith or expert mechanic who is about to work upon the rod or pipe" (lines 16-21).
Date: November 13, 1894
Creator: Riza, Mike H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department