[D8845AGY], Letter from John Birkinbine to John H Harden, December 17th, 1888
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Title
[D8845AGY], Letter from John Birkinbine to John H Harden, December 17th, 1888
Editor's Notes
"I will refer your inquiry as to cost of magnetic separator to Mr. Edison, but will answer your inquiry in regard to the expense attached to running the machine by saying that it will consist of delivering the ore after it is crushed into a hopper, and removing the concentrated ore and tailing s from bins. A three to five horse power dynamo will operate a big machine, and a you will readily see the cost of separating is a very small item. I think it would enrich your Jones ore are satisfactorily, and would suggest that you make a visit to the Laboratory with me and see the machine in operation."
Author
Recipient
Mentioned
Date
1888-12-17
Type
Folder/Volume ID
D8845-F
Microfilm ID
123:1101
Document ID
D8845AGY
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University