Patent Model, Endless Chain Propeller
National Museum of American History

Patent Model, Endless Chain Propeller

Alvord, Luther · 1876

metal (blades and rollers material)
National Museum of American History
CC0 — Public Domain
National Museum of American History

This model accompanied Luther Alvord’s patent application for an “endless chain propeller” that received patent number 174,178 on February 29, 1876. He also claimed it would work as a dredge for removing sand and mud from shipping channels.

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