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New Lasting Machine

An Ancient Aqueduct Reopened

The Gaffney Boiler Explosion

Dr. Griscom's Fast

Inconveniences of Electric Street Railways

A Life-Saving Lesson in Physics

Interesting Test of Cast Iron Boiler Heads

Stencil Copying Process

A New Use for the Induction Balance

By M. Hopkins

New Adjustable Gun Stock

New Band Saw Machine

Improved Canceling Stamp

Improved Dividers and Calipers

Novel Cork Extractor

Maiche's Battery

Preparation of Tinned Iron--Tin Plate

Miscellaneous Inventions

Improved Lubricator

Improved Slotting Machine

Home of the American Osprey

By Daniel C. Beard

Quartz and Marl as Wood Fillers

Mechanical Inventions - July 30, 1881


  • Departments

    Recent Inventions

  • Correspondence - July 30, 1881

  • New Books and Publications - July 30, 1881

  • Notes and Queries - July 30, 1881

  • Business and Personal - July 30, 1881

  • Index of Inventions - July 30, 1881

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