Patent Model - Improvement in Center-Boards for Vessels

Maker and role
James Call, Patentee
Production date
Sep 09 1873
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Object detail

Wood, steel, brass
6 5/8 x 2 1/4 x 12" (16.8 x 5.7 x 30.5cm)
Call's invention "relates to center-boards for vessels; and it consists in the construction and novel arrangement of the horizontal flanges on each side of the lower edge of the center-board; of the oblique curved slots through the center-board; the guard-plate, with its transverse pins, engaging with said slots; the pivoted arms and the tube for the operating-rod..." (Patent Number 142,677)
Object number
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