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Features

A Storage Battery for Central Station Service

Death by Gas Asphyxiation and Poisoning

The “Paragon” Projection Lantern

A Movable Elevator for Use on Store Floors

An Improved Propeller Sleigh

An Improved Rotary Engine

The Rand Drill Company's Compound Duplex Air Compressor and Rock Drills at the Columbian Exposition

Magnetic Jack Straws

The Scientific American Match Safe

Brooks' Comet of 1893

The New Dudley Observatory, in Albany

Movable Night Lamp for Stairways

The World's Columbian Exposition--The Indian Scout

Noriega's Telephone

The Flying Propeller

Sheffield Steel at the Exposition

To Inventors

Departments

  • Departments

    Correspondence

  • New Books and Publications

  • Recently Patented Inventions

  • Business and Personal

  • Notes and Queries

  • Index of Inventions

  • Patents

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