Features
An Annunciator for Burglar Alarms, Etc.
A Simple Mechanical Motor
An Improved Stalk Cutting Machine
An Improved Ventilator or Blower
A Boiler Feeder, Regulator, and Alarm
An Improved Pipe Joint
The German Army Swimming Exercises
Bad Paving in New York
A Mousetrap
An Improved Flat Iron and Heater
A Simple and Convenient Music Holder
A Proposed "Whaleback" Passenger Steamer
Electrical Rock Drills
A Twin Screw Launch Run by a Compound Engine
The "Otto" Gasoline Engine
Electric Mining Locomotives
Departments
- Letters
Correspondence- November 14, 1891
- Departments
Recently Patented Inventions- November 14, 1891
Notes & Queries- November 14, 1891
Business and Personal- November 14, 1891
To Inventors- November 14, 1891
Index of Inventions- November 14, 1891
