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Scientific American, Vol. 2, No. 4 (1860) (1860)

leaf 15

An illustration from Scientific American, Vol. 2, No. 4 (1860), 1860, leaf 15
h of the they wish the paper sent. And when they change their residence, and wish their paper changed accordingly, they should state the portion which is free to act upon the balance wheel. name of the Post-office where they have been receiving it, and that The annexed cuts illustrate an… … The patent for this invention was ordered to be issued at the Patent Office to all such cases as may require it. Inventors the regulator, d (Fig. 2), is furnished with a rack, 6, and others who may visit Washington, having business at the Patent Dec. 17, 1859, and filed in the confidential archives…

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