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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

    Business and Personal

  • Notes and Queries

  • Index of Inventions

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August 04, 1877

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