Dynamos

Private Label Trade Names on American Pocket Watches: The Non-Magnetic Watch Company: Part 30: Edwin J. Houston’s Experiments: The Anti-Magnetic Shield

By Nathan Moore

In Science

Pictured: An Anti-Magnetic Shield on an Elgin 18-Size Watch, c.1890s. In the March 1888 edition of the Journal of the Franklin Institute, Professor Edwin J. Houston published a comprehensive article exploring several experiments conducted on two Non-Magnetic Watch Company movements. Following his preliminary experiments on...

Science

Private Label Trade Names on American Pocket Watches: The Non-Magnetic Watch Company: Part 28: Edwin J. Houston’s Experiments: Exposure to Dynamos

By Nathan Moore

Pictured: Dynamo Room of the Brush Electric Light Station in Philadelphia, The Electrical World, February 12, 1887. In the March 1888 edition of the Journal of the Franklin Institute, Professor.