United States Patent #371,922 for a Dumping Scow awarded to James T. Cashman of Hanover, MA -- A scow with an inclined endless apron intended for use in discharging stone into the water for the purpose of building a breakwater or making a foundation for any structure. When the inclined endless apron is loaded with stone or other matter resting on its top, it will readily, provided its wheels are not blocked, move or revolve under the action of gravity and discharge the load into the water aside of the scow.
Date
25 Oct 1887
File name
006 1887 Dumping Scow US Patent 371922 fulltext.pdf
