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Features

New Lasting Machine

An Ancient Aqueduct Reopened

The Gaffney Boiler Explosion

Inconveniences of Electric Street Railways

Dr. Griscom's Fast

A Life-Saving Lesson in Physics

Stencil Copying Process

Interesting Test of Cast Iron Boiler Heads

A New Use for the Induction Balance

By M. Hopkins

New Adjustable Gun Stock

Improved Canceling Stamp

Novel Cork Extractor

New Band Saw Machine

Improved Dividers and Calipers

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

Mechanical Inventions - July 30, 1881

Quartz and Marl as Wood Fillers

Departments

  • Departments

    Recent Inventions

  • Correspondence - July 30, 1881

  • Business and Personal - July 30, 1881

  • Notes and Queries - July 30, 1881

  • New Books and Publications - July 30, 1881

  • Index of Inventions - July 30, 1881

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July 30, 1881

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