Features
Softening and Hardening Cast Iron
The State of Manufacturing
Porcelain Headed Nails
Electric Door Keepers
Stove Pipe Connection
Canal Boat
Folding Egg Case
Device for Holding and Guiding the Fingers in Writing
Photographing a Flash of Lightning
Cut-Off Valve Gear
Improved Steam Hammer
A Whalebone Arch
The Isatis, or Arctic Fox
Cuff Holder
Watch Maker's Hand Vise and Ring Bender
Mechanical Inventions - June 7, 1884
Miscellaneous Inventions - June 7, 1884
Engineering Inventions - June 7, 1884
Departments
- Letters
Correspondence - June 7, 1884
- Recommended
New Books and Publications - June 7, 1884
- Departments
Business and Personal - June 7, 1884
Notes and Queries - June 7, 1884
Index of Inventions - June 7, 1884
