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Features

Cable Making of the East River Bridge

Notes of Patent Office Decisions

Torpedo Defence--Invention Wanted

Recent Great Improvements in Electric Illumination

Balancing Emery Wheels

The Great Railroad Strikes

New Investigations on Copper Alloys

A New Dynamometer

Improved Grain Scale

Apparatus for Preparing Butter for Packing

A Rotary Mould Board Plow

The American Toad

The Vapart Disintegrator

Improved Chicken Coop

Spelman's Improved Rowlock

New Pump

The Carolina Lizard

The Sea Monster

The Mole Cricket

A Self-Cooling Goblet

New Agricultural Inventions

Recent American and Foreign Patents

New Woodworking House and Carriage Building Inventions

New Miscellaneous Inventions

New Mechanical and Engineering Inventions

New Household Inventions

Communications Received

Departments

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    Business and Personal

  • Notes and Queries

  • Index of Inventions

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August 04, 1877

See the World from a Different Perspective

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