Though I have seen it many a times but do not know the exact mechanism of this. This looks to be for some counter balancing. Location is Mau Aimma on ALD-FD line. (Samar)

Date: 2009-12-11
Owner: Samar
Size:
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IMG_1359
Photo Properties
Summary  Details
Make Canon Model Canon PowerShot S5 IS
Aperture Value f/8 Color Space sRGB
Flash No Flash ISO 200
Metering Mode Multi-Segment Shutter Speed Value 1/40 sec
Digital Zoom Ratio 1 Date/Time 2009 Dec 11 16:32:28 +0000
Comments
simple mechanics that will be lost in digital era....as has happened in aviation, normal hydraulic replaced by fly by wire.
Posted by Aseem Johri on 2009 Dec 18 04:38:27 +0000
This is just to keep the wires for semaphore signalling in proper tension. The counterweight for semaphore arm to put the signal in danger in case of wire break is a part of semaphore only.
Posted by Harsh Vardhan on 2009 Dec 18 03:33:35 +0000
Such counterweights are normally used for semaphore signals to put the signal to danger in case the wire breaks but this seems to be a temperature compensator and keeps the wires in proper tension.
Posted by Khalid Kagzi on 2009 Dec 17 13:41:55 +0000
This mighthave been be used for point settings.
Posted by Shantanu Kulkarni on 2009 Dec 17 13:25:25 +0000
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