(DOWNLOAD) "Scientific American Supplement, No. 392, July 7, 1883" by Various Authors ~ Book PDF Kindle ePub Free
eBook details
- Title: Scientific American Supplement, No. 392, July 7, 1883
- Author : Various Authors
- Release Date : January 01, 2012
- Genre: Antiques & Collectibles,Books,Lifestyle & Home,
- Pages : * pages
- Size : 125 KB
Description
The continuous current and the alternating current generators invented by Dr. J. Hopkinson and Dr. Alexander Muirhead are peculiarly interesting as being probably the first in which the bobbins of the armature were wound with copper ribbon and arranged on a disk armature much in the same way as was afterward done by Sir William Thomson and by Mr. Ferranti. In the Muirhead-Hopkinson machine the armature coils are attached to a soft iron ring, whereas in the Ferranti the iron core is dispensed with, and a gain of lightness in the armature or rotating part effected; this advantage is of considerable importance, though Messrs.
 "Scientific American Supplement, No. 392, July 7, 1883" by Various Authors ~ Book PDF Kindle ePub Free){kind=link}
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