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- Edison Type A-6 Storage Battery, 1908-1928 -
- 1908-1928
- Collections - Artifact
Edison Type A-6 Storage Battery, 1908-1928
- Westinghouse Electric Iron, 1908-1918 -
- 1908-1918
- Collections - Artifact
Westinghouse Electric Iron, 1908-1918
- General Electric Company Catalog, "Electric Locomotives: Catalogue No. 4," 1893 - At the turn of the 20th century, General Electric manufactured several models of electric locomotives for use in underground mines -- where smoke and soot from steam locomotives was dangerous and impractical. These small mine locomotives collected electricity from overhead lines or third rails that ran alongside the track. GE also built larger electric locomotives for use with conventional railcars aboveground.
- 1893
- Collections - Artifact
General Electric Company Catalog, "Electric Locomotives: Catalogue No. 4," 1893
At the turn of the 20th century, General Electric manufactured several models of electric locomotives for use in underground mines -- where smoke and soot from steam locomotives was dangerous and impractical. These small mine locomotives collected electricity from overhead lines or third rails that ran alongside the track. GE also built larger electric locomotives for use with conventional railcars aboveground.
- General Electric Company Catalog, "Electric Mine Locomotives," 1904 - At the turn of the 20th century, General Electric manufactured several models of electric locomotives for use in underground mines -- where smoke and soot from steam locomotives was dangerous and impractical. These small mine locomotives collected electricity from overhead lines or third rails that ran alongside the track. GE also built larger electric locomotives for use with conventional railcars aboveground.
- 1904
- Collections - Artifact
General Electric Company Catalog, "Electric Mine Locomotives," 1904
At the turn of the 20th century, General Electric manufactured several models of electric locomotives for use in underground mines -- where smoke and soot from steam locomotives was dangerous and impractical. These small mine locomotives collected electricity from overhead lines or third rails that ran alongside the track. GE also built larger electric locomotives for use with conventional railcars aboveground.
- Charles Steinmetz, August 1904 - Charles Steinmetz excelled at applying mathematical theory and scientific methods to practical engineering, helping define the role of "scientist-engineer" in the American electrical industry. Steinmetz developed important theories on alternating currents, conducted breakthrough experiments on power loss, and authored a number of influential textbooks. His innovations shaped the electrical engineering profession and improved and expanded electrical distribution systems.
- August 01, 1904
- Collections - Artifact
Charles Steinmetz, August 1904
Charles Steinmetz excelled at applying mathematical theory and scientific methods to practical engineering, helping define the role of "scientist-engineer" in the American electrical industry. Steinmetz developed important theories on alternating currents, conducted breakthrough experiments on power loss, and authored a number of influential textbooks. His innovations shaped the electrical engineering profession and improved and expanded electrical distribution systems.
- Reactance Coil, Used at Hammond Radio Research Laboratory, 1915-1920 - John Hays Hammond, Jr., is considered "the father of radio control." In 1926, he built a medieval-inspired castle in Gloucester, Massachusetts, as his home and research laboratory. With 400 patents to his name, Hammond developed radio control, autopilot function, and targeted missile detonation. A reactance coil is an inductor, blocking high-frequency AC power, allowing low-frequency DC power to pass.
- 1915-1920
- Collections - Artifact
Reactance Coil, Used at Hammond Radio Research Laboratory, 1915-1920
John Hays Hammond, Jr., is considered "the father of radio control." In 1926, he built a medieval-inspired castle in Gloucester, Massachusetts, as his home and research laboratory. With 400 patents to his name, Hammond developed radio control, autopilot function, and targeted missile detonation. A reactance coil is an inductor, blocking high-frequency AC power, allowing low-frequency DC power to pass.
- Leeds & Northrup Co. Potentiometer, Used at Ford Motor Company -
- Collections - Artifact
Leeds & Northrup Co. Potentiometer, Used at Ford Motor Company
- "Grunow Recipes by Dorothy Ayers Loudon," circa 1934 -
- circa 1934
- Collections - Artifact
"Grunow Recipes by Dorothy Ayers Loudon," circa 1934
- "Making the Most of Your Electrolux with Practical Recipes," 1932 -
- 1932
- Collections - Artifact
"Making the Most of Your Electrolux with Practical Recipes," 1932
- We Hand You a Hint: The Hemco Twin-Lite is Made of Condensite, circa 1915 - Chemically synthetic plastics were developed in the early 1900s to replace shellac and hard rubber -- naturally derived substances increasingly in demand for various industrial applications. The Condensite Company of America formed in 1910 to sell a new material first developed at Thomas Edison's West Orange laboratory for phonograph records. Durable and nonconductive, Condensite was well suited for electrical products.
- circa 1915
- Collections - Artifact
We Hand You a Hint: The Hemco Twin-Lite is Made of Condensite, circa 1915
Chemically synthetic plastics were developed in the early 1900s to replace shellac and hard rubber -- naturally derived substances increasingly in demand for various industrial applications. The Condensite Company of America formed in 1910 to sell a new material first developed at Thomas Edison's West Orange laboratory for phonograph records. Durable and nonconductive, Condensite was well suited for electrical products.