Category:Mechanical semaphores

English: Mechanical devices for communicating messages by a physical movement. Some use the same moving flags as manual semaphore, others use an alternative arrangement, often a shutter showing either black or white. For the railway signals with a moving arm, see Semaphore signals

Subcategories

This category has only the following subcategory.

S

• ► Semaphore in Bremerhaven‎ (10 F)

Media in category "Mechanical semaphores"

The following 15 files are in this category, out of 15 total.

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  Andul.jpg 252 KB
  
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  Belaya train station crossing.jpg 339 KB
  
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  Disc signalling shutter, canvas (Signalling, 1918).jpg 75 KB
  
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  Disc signalling shutter, wooden (Signalling, 1918).jpg 79 KB
  
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  Hradlo Praha Zelezny most, mechanicke navestidlo So, 1.jpg 784 KB
  
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  Murray Shutter Telegraph 1795.png 42 KB
  
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  Onda Semaphore Tower.jpg 512 KB
  
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  Optisk telegraf Klaffetelegraf (1810) (8662661121).jpg 7.48 MB
  
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  Orillia Canadian National Railway Station and semaphore other view.JPG 3.55 MB
  
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  Orillia Canadian National Railway Station and semaphore.JPG 3.63 MB
  
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  PSM V44 D814 A military post with semaphore 1794.jpg 667 KB
  
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  Signaling by Napoleonic semaphore line.jpg 265 KB
  
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  Zarichne station semaphore switcher.jpg 338 KB
  
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  Zarichne station semaphore.jpg 117 KB
  
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  Zarichne station switch and semaphore.jpg 216 KB