Ask a Blacksmith Student: Building a Gate with Cogs & Counterweight

[scroller]

Hi I am an artist blacksmith student and am looking at building a gate that incorporates engineering mechanisms and am a bit stumped, so I am looking for advise
I intend to build a gate from forged steel and cogs I want the gate to be linked to a counterweight that is lifted as the gate is opened in doing this I want a chain connected to the weight to run through a cog and then possibly to some sort or cable retractor. As the chain moves through the cog I want it to spin in turn moving the other cogs. If you have any ideas or advice it would be much appreciated

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[Danger]

Welcome to PF, Gareth.
My first thought is to examine the mechanism of a weight-driven ("grandfather") clock. It would seem to share several concepts with your intended design.