Patent Model - Chain Propeller
Maker and role
James Drummond, Patentee
Production date
Mar 07 1882
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Object detail
Media/Materials
Wood, iron, steel, brass
Measurements
14 x 12 1/4 x 7" (35.6 x 31.1 x 17.8cm)
Description
Drummond's invention "relates to improvements in that class known as 'endless-chain propellers,' designed for boats or vessels, and has for its object to provide a system of mechanism carrying and adjusting pivoted paddles in a vertical position while making a long horizontal stroke in the water and in a transverse position or edgewise during the other part of their circuit, thus utilizing the propelling power to the greatest advantage, thereby saving largely in the expense of propelling boats." (Patent Number 254,468)
Collection
Object number
2015.14.3396a,b
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