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File:Drum Wound Armature - Single Coil Example.jpg

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Description
English: Text from original illustration:

Figure 251: Illustrating the principle of an early Siemens drum winding.

  • In order to make the winding and connections clear, one coil and the commutator is shown assembled, although the latter is not put in place until after all the coil sections have been wound, with the ends of the wires being temporarily twisted together until all can be soldered to the commutator risers.
  • The cores of these early machines were made of wood, overspun circumferentially with iron wire before receiving the logitudinal copper windings.
Source

Public Domain source:

  • Hawkins Electrical Guide, Volume 1
  • Chapter 17: The Armature, Page 226.
  • Copyright 1917 by Theo. Audel & Co.
  • Printed in the United States

Scanned by Dale Mahalko, Gilman, WI, USA

DMahalko (talk) 09:54, 13 January 2008 (UTC)
Author Unknown authorUnknown author

Licensing

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.
Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Drum_Wound_Armature_-_Single_Coil_Example.jpg

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Date/Time Dimensions User Comment
2008-01-13 09:54 1933×1313× (105039 bytes) DMahalko == Summary == Text from original illustration: Figure 251: Illustrating the principle of Siemens drum winding. In order to make the winding and connections clear, one coil and the commutator is shown assembled, although the latter is not put in place unt

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current18:17, 12 February 2019Thumbnail for version as of 18:17, 12 February 20191,933 × 1,313 (103 KB)Betelgeuse1960Transferred from en.wikipedia via #commonshelper

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