[D8845AGY], Letter from John Birkinbine to John H Harden, December 17th, 1888

Item

Abstract

"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."

Recipient

Date

1888-12-17

Decade

1880-1889

Type

Identifier

D8845AGY

Folder Set

D8845

Title

[D8845AGY], Letter from John Birkinbine to John H Harden, December 17th, 1888

Microfilm ID

123:1101

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University

Timestamp

December 17, 1888

Item sets