National Museum of American History
Ice Auger, Patent Model
Clark, William A. · 1873
William A. Clark of New Haven, Connecticut, submitted this model with his patent that received number 139769 on June 10th, 1873. The patent describes an auger to bore holes in ice with the addition of a small threaded point to the leading end of a standard, helical drilling bit. The point would cut a pilot hole into the ice, and its threaded sides would grip the ice, pulling and guiding the entire auger forward.
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