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The Forth Bridge

Concerning Telescopes

Progress of Pneumatic Postal Tubes

Improved Door Opener

Apparatus for Testing Sealed Cans

Improved Seal Lock

Car Coupling

Safety Gas Burner

A Steam Wheel, or Rotary Engine

Combined Grain Drier and Cooler

The Sinking of Shafts by Freezing

Automatic Loose Pulley Oiler

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

Engineering Inventions - April 4, 1885

Miscellaneous Inventions - April 4, 1885

Foreign Patents - April 4, 1885


  • 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

Science for the Modern World