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Features

The Forth Bridge

Concerning Telescopes

Progress of Pneumatic Postal Tubes

Apparatus for Testing Sealed Cans

Improved Seal Lock

Improved Door Opener

Car Coupling

A Steam Wheel, or Rotary Engine

Safety Gas Burner

Combined Grain Drier and Cooler

Automatic Loose Pulley Oiler

The Sinking of Shafts by Freezing

Cover for Cooking Utensils

Imitation of Electro-Physiological Apparatus and Electric Tuning-Forks by Hydrodynamic Tuning-Forks

The Improved Hand Loom Eugenie

The Improved Hand Loom Penelope

The Rudder of the Alaska

The Victoria Regia

Agricultural Inventions - April 4, 1885

Special - April 4, 1885

Miscellaneous Inventions - April 4, 1885

Engineering Inventions - April 4, 1885

Foreign Patents - April 4, 1885

Departments

  • Letters

    Correspondence - April 4, 1885

  • Departments

    Business and Personal - April 4, 1885

  • Index of Inventions - April 4, 1885

  • Notes and Queries - April 4, 1885

  • Patents

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April 04, 1885

See the World from a Different Perspective

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