File:US2236984-Figure1.png

Page contents not supported in other languages.
This is a file from the Wikimedia Commons
From Wikipedia, the free encyclopedia

Original file ‎(1,749 × 1,052 pixels, file size: 30 KB, MIME type: image/png)

Description
English: Electric motor control system

Figure 1:
1. induction motor
2. stator winding
3. induced or rotor winding
4. circuit
5. variable voltage alternating current circuit
6. - 9. electric valves
12. control member
13. autotransformer
14. winding (of autotransformer 13.)
15. winding (of autotransformer 13.)
16. contact
17. contact
18. Controllable or adjustable contact-making mechanisms
19. Controllable or adjustable contact-making mechanisms
20. excitation system
22. batteries
23. batteries
24. current limiting resistances
25. rotary phase shifting device

Figure 2:
26. induction motor
27. inducing or stator winding
28. a quarter phase rotor winding
29. - 36. Electric valves
37. anode
38. cathode
39. controll member

Figure 3:
40. induction motor
41. three-phase inducing or stator winding
42. three-phase induced or rotor winding
44. circuit
45-62. Electric valve
63. anode
64. cathode

69. field or excitation winding
Date
Source https://www.google.co.in/patents/US2236984
Author Alexanderson Ernst F W
Permission
(Reusing this file)
Public domain The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See 37 CFR 1.71(d), 37 CFR 1.84(s)

The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}.

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

inception

19 October 1937

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current12:14, 9 August 2015Thumbnail for version as of 12:14, 9 August 20151,749 × 1,052 (30 KB)MichaelFrey{{Information |Description ={{en|1=Toy engine - Reciprocating electric motor that simulates a steam engine. {{:User:MichaelFrey/US2236984}}}} {{en|1=Electric motor control system}} |Source =https://www.google.co.in/patents/US2236984 |Author...
The following pages on the English Wikipedia use this file (pages on other projects are not listed):

Global file usage

The following other wikis use this file:

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Retrieved from "https://en.wikipedia.org/wiki/File:US2236984-Figure1.png"