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The Wreck of the Louise H. Randall

An Improved Nut Lock

Work on the Sewers of Paris

A Pneumatic Ventilator

An Improved Recording Thermometer

A Digging Machine to Deepen Channels, Etc.

A Combined Rubber Stamp Vulcanizer and Press

Railroad Construction in Old and Modern Times

Electric Propulsion of Canal Boats

The Mont Blanc Observatory

The Manufacture of Desiccated Cocoanut

Improved Steam Steering Gear

To Inventors


  • Departments


  • Business and Personal

  • Recently Patented Inventions

  • New Books and Publications

  • Notes and Queries

  • Index of Inventions

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December 09, 1893

20% Sitewide for President's Day