Patent Model - Automatic Car-Brake

Maker and role
William Card (b.1838, d.1913), Patentee
Jay Noble (b.1844, d.1908), Patentee
Card Automatic Brake Company, Assignee
Production date
Jan 06 1880
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Object detail

Wood, brass
6 1/2 x 13 x 9 1/2" (16.5 x 33 x 24.1cm)
Card and Noble's patent is an improvement to a patent granted to W. L. Card and dated August 27, 1878. The improvement is that "the automatic effect is produced by means of a weighted revolving bar or frame pivoted to a sleeve, which surrounds and is clamped upon the axle, and which has upon it an endwise sliding collar, which is actuated by the revolving bar or frame." (Patent Number 223,317)
Object number
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