Here's another arrangement proposed by a pvt. vendor for retracting and extending the middle side berth in 3A coach. The arrangement is through triple hinged metal flats.

Date: 2007-04-03
Owner: Rajeev Shrivastava
Size:
Full size: 960x1280

Photo Properties
Summary  Details
Make Nokia Model N73
Aperture Value f/2.8 Color Space Uncalibrated
Flash No Flash ISO 100
Shutter Speed Value 1.1 sec Digital Zoom Ratio 1
Date/Time 2007 Apr 03 16:55:33 +0100