Patent Model - Improvement in Sheer-Rudders for Booms

Maker and role
Levi Pond, Patentee
Eau Claire Lumber Company, Assignee
Production date
Mar 02 1875
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Object detail

Wood, brass, string
21 x 16 x 2 1/4" (53.3 x 40.6 x 5.7cm)
Pond assigned one-half of his right to the Eau Claire Lumber
Company. His patent "consists in connecting a movable bar with the boom, to which bar are hinged the wings or rudders, which operate the boom, the position of the bar and wings being changed by moving the bar longitudinally by means of ropes and a windlass secured to the main boom." (Patent Number160,347)
Object number
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