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This automatic gate without the use of electric power allows to open the barriers only for vehicles and to close for big animals.
The red rods connect parallelogram mechanisms of yellow bars with blue bridges pivoted with the base.
The blue bridges are connected together by sliding joints (red pins and blue slotted plates).
Grey cylindrical weights are for keeping the gate closed thanks to cable drives of orange pulleys.
This video aims to explain the working principle of the gate shown at
• Video
See a prototype of this design:
• automatic mechanical g...
See also:
• OzAutogate Powerless A...
Inventor files of this video:
www.mediafire.com/file/w693cdz...
STEP files:
www.mediafire.com/file/1acxig4...