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- Iron Ore Briquette from Edison Mines, New Jersey, 1899-1900 - During the 1890s, Thomas Edison launched a New Jersey mining operation to address an iron ore shortage. He designed rock-crushing technology and an electromagnetic ore separator to extract low-grade ore from crushed boulders. The final product -- a briquette made of powdered iron ore -- didn't do well commercially, especially after high-grade ore was discovered around Lake Superior. In 1899, Edison left the industry.
- 1899-1900
- Collections - Artifact
Iron Ore Briquette from Edison Mines, New Jersey, 1899-1900
During the 1890s, Thomas Edison launched a New Jersey mining operation to address an iron ore shortage. He designed rock-crushing technology and an electromagnetic ore separator to extract low-grade ore from crushed boulders. The final product -- a briquette made of powdered iron ore -- didn't do well commercially, especially after high-grade ore was discovered around Lake Superior. In 1899, Edison left the industry.
- Iron Ore Briquette from Edison Mines, New Jersey, 1890-1899 - During the 1890s, Thomas Edison launched a New Jersey mining operation to address an iron ore shortage. He designed rock-crushing technology and an electromagnetic ore separator to extract low-grade ore from crushed boulders. The final product -- a briquette made of powdered iron ore -- didn't do well commercially, especially after high-grade ore was discovered around Lake Superior. In 1899, Edison left the industry.
- 1890-1899
- Collections - Artifact
Iron Ore Briquette from Edison Mines, New Jersey, 1890-1899
During the 1890s, Thomas Edison launched a New Jersey mining operation to address an iron ore shortage. He designed rock-crushing technology and an electromagnetic ore separator to extract low-grade ore from crushed boulders. The final product -- a briquette made of powdered iron ore -- didn't do well commercially, especially after high-grade ore was discovered around Lake Superior. In 1899, Edison left the industry.
- Edison's Autographic Press and Electric Pen, 1875-1880 - Thomas Edison's electric pen, an ancestor of both the mimeograph and the tattoo needle, was a successful product in the mid-1870s. Users would write normally with the pen, which, instead of a nib, had a needle powered by an electric motor. The needle poked holes into a stencil, which was then used to copy the document. Many businesses found document duplication an attractive possibility.
- 1875-1880
- Collections - Artifact
Edison's Autographic Press and Electric Pen, 1875-1880
Thomas Edison's electric pen, an ancestor of both the mimeograph and the tattoo needle, was a successful product in the mid-1870s. Users would write normally with the pen, which, instead of a nib, had a needle powered by an electric motor. The needle poked holes into a stencil, which was then used to copy the document. Many businesses found document duplication an attractive possibility.
- Zinc Plates for Electrolytic Meter, 1880 -
- 1880
- Collections - Artifact
Zinc Plates for Electrolytic Meter, 1880
- Sarah Jordan Boarding House - The Menlo Park complex was an all-male environment; the closest workaday involvement of women -- not forgetting that Edison and several of his personnel were married -- was at the Sarah Jordan boardinghouse. Offering room and board for unmarried employees at the complex, it was operated by Sarah Jordan, a distant relative of Edison's. The house also played host to the experimental lighting system installed throughout Menlo Park in December 1879.
- circa 1870
- Collections - Artifact
Sarah Jordan Boarding House
The Menlo Park complex was an all-male environment; the closest workaday involvement of women -- not forgetting that Edison and several of his personnel were married -- was at the Sarah Jordan boardinghouse. Offering room and board for unmarried employees at the complex, it was operated by Sarah Jordan, a distant relative of Edison's. The house also played host to the experimental lighting system installed throughout Menlo Park in December 1879.
- Patent Model of Edison's Sextuplex Telegraph, 1879 -
- 1879
- Collections - Artifact
Patent Model of Edison's Sextuplex Telegraph, 1879
- Patent Model of Edison's Acoustic Telegraph Improvement, 1876 -
- 1876
- Collections - Artifact
Patent Model of Edison's Acoustic Telegraph Improvement, 1876
- Patent Model of Edison's Electro-Harmonic Multiplex Telegraph, 1876 -
- 1876
- Collections - Artifact
Patent Model of Edison's Electro-Harmonic Multiplex Telegraph, 1876
- Patent Model of Edison's Electric Light, 1880 -
- 1880
- Collections - Artifact
Patent Model of Edison's Electric Light, 1880
- Paper Horseshoe Filament Lamp Used at New Year's Eve Demonstration of the Edison Lighting System, 1879 - Thomas Edison created the first practical incandescent lamp in October 1879. As the news spread the public clamored to view this achievement. On New Year's Eve, thousands streamed into Menlo Park to see the first public display of Edison's electric light. Dozens of lights, like this surviving example, lit up the homes, buildings and streets around Menlo Park and Edison's laboratory.
- December 31, 1879
- Collections - Artifact
Paper Horseshoe Filament Lamp Used at New Year's Eve Demonstration of the Edison Lighting System, 1879
Thomas Edison created the first practical incandescent lamp in October 1879. As the news spread the public clamored to view this achievement. On New Year's Eve, thousands streamed into Menlo Park to see the first public display of Edison's electric light. Dozens of lights, like this surviving example, lit up the homes, buildings and streets around Menlo Park and Edison's laboratory.