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File:Gramme Ring Armature - Early Form.jpg

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Description
English: Text from original page: Figure 248: Early form of Gramme ring armature, the core being shown cut through, and some of the coils displaced to make it clearer. The core, F, consists of a quantity of iron wire wound continuously to form a ring of the shape shown by the section. Over this is wound about thirty coils of insulated copper wire, B C D, etc, the direction of the winding of each being the same, and their adjacent end connected together. The commutator segments consist of a corresponding number of brass angle pieces, m n, which are fixed against the wooden boss, o, carried on the driving shaft. The junction of every two adjacent cells is connected to one of the commutator segments, as shown at n.
Source

Public Domain source:

  • Hawkins Electrical Guide, Volume 1
  • Chapter 17: The Armature, Page 223.
  • Copyright 1917 by Theo. Audel & Co.
  • Printed in the United States

Scanned by Dale Mahalko, Gilman, WI, USA

DMahalko (talk) 08:44, 13 January 2008 (UTC)
Author Unknown authorUnknown author

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Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Gramme_Ring_Armature_-_Early_Form.jpg

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Date/Time Dimensions User Comment
2008-01-13 08:44 1298×1249× (87196 bytes) DMahalko == Summary == Text from original page: Figure 248: Early form of Gramme ring armature, the core being shown cut through, and some of the coils displaced to make it clearer. The core, F, consists of a quantity of iron wire wound continuously to form a rin

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