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214:. Completed in 1889, the factory contained three giant electromagnets and was intended to process up to 1200 tons of iron ore every day. This mill pulverized the large chunks of ore that came directly from the mine. There was other equipment to re-refine what was left over to extract even more ore. However, technical difficulties repeatedly thwarted production.
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That year, he closed the
Ogdensburg plant for upgrades, using the sale of stocks in General Electric to install new equipment that would be able to output even more iron ore. He made changes to the ore-crushing machinery, installing huge rollers capable of turning out much larger quantities of ore.
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The manufacturing process produced a large quantity of waste sand, which the company sold on to cement manufacturers. The properties of the sand were particularly suitable for cement, leading to a harder, more durable product. Selling off the ore-crushing technology to mine owners, Edison decided
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after developing the process in an addition to his laboratory. The remaining deposits of iron in the eastern side of the United States were of poor quality, and the difficulty in separating it from the rock and other debris made it unprofitable. Edison believed that his method was a cheaper
229:. He redirected his interest back to iron ore, having high hopes for what he could achieve: "I'm going to do something now so different and so much bigger than anything I've ever done before people will forget that my name ever was connected with anything electrical."
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under the New Jersey and
Pennsylvania Concentrating Co. The Edison mine exploited a large low-grade magnetite deposit which had been mined since the 1770s, which Edison and his engineers ground and concentrated.
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Eventually, Edison realized that the company was a failure, shutting it down in 1899. Edison commented about the financial losses, "it's all gone, but we had a hell of a good time spending it."
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milling industry but the company ultimately proved to be unprofitable. Towards the end of the company's life, Edison realized the potential application of his technologies to the
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Edison had recognized the scarcity of iron ore in the 1870s, particularly in the east of the United States. His developments in the field of
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After a short time away from the industry, Edison decided to return, adapting his methods to crush rocks brought up directly from a
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near to existing iron mines as a trial before building one of the world's largest ore-crushing mills in the world at the time in
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and sales were not sufficient to bring in a profit and the operation was closed down after just a few years.
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had been put in charge of much of the laboratory and further refined the techniques along with mining expert
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When it reopened, the earlier problems persisted and Edison once again had difficulties finding customers.
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to switch to the cement business, reusing some of the technology he had developed for ore-milling.
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meant that he had sufficient finances to invest in other projects. Discovering that beach
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Edison operated an iron mine in the
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History Network. August 3, 2009. Accessed September 24, 2011.
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in 1890 but it only lasted two years, merging in 1892 with the
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372:"Edison Mine, Sparta Township, Sussex County, New Jersey, USA"
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Photograph of Thomas Edison by Victor
Daireaux, Paris,
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166:alternative, allowing him to keep costs down.
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610:Edison Gower-Bell Telephone Company of Europe
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219:Edison General Electric Company
660:Motion Picture Patents Company
645:Edison Storage Battery Company
635:Edison Portland Cement Company
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260:Edison Portland Cement Company
120:Edison Portland Cement Company
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564:Incandescent light bulb
331:Edison and Ore Refining
168:William Kennedy Dickson
748:Theodore Miller Edison
665:Mine Safety Appliances
600:Thomas A. Edison, Inc.
488:List of Edison patents
255:List of Edison patents
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151:electricity
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808:Literature
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686:Birthplace
523:Phonomotor
518:Phonograph
411:2023-03-05
376:mindat.org
266:References
212:New Jersey
208:Ogdensburg
190:Refocusing
176:Iron Range
131:Beginnings
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883:Kidnapped
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122:in 1899.
32:(c. 1895)
859:The Kiss
784:" (1998)
593:Ventures
378:. Mindat
249:See also
112:iron ore
95:Iron ore
91:Products
38:Industry
915:Related
382:July 5,
356:July 9,
126:History
81: (
76:Defunct
66:Founder
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735:Family
428:Cement
116:cement
42:Mining
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797:Tesla
758:Films
750:(son)
744:(son)
405:ETHW
384:2022
358:2022
335:IEEE
196:mine
159:iron
155:sand
102:The
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58:1881
51:1881
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