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Lightbulbs in Stand
These light bulbs were manufactured around 1905. They can be dated by the construction of the filament. To learn more about antique light bulbs,…
Froment Motor, or Revolving Armature Engine
In 1844 Froment devised an electric motor that was one of the first used for industrial purposes. In his design, electromagnets are energized to attract iron bars mounted on a revolving cage. Once the iron bar is level with the electromagnet, the…
Electric Motor
The label of this electric motor notes that it is a 1/6 HP, 130 Volt motor made by the Crocker Wheeler Motor Company of New York. The patent dates are May 5 and September 22, 1891.