The Portcullis Mystery - Chief Delphi

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The Portcullis Mystery

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#18

24-01-2016, 10:04

MrTimKlein MrTimKlein is offline

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Re: The Portcullis Mystery

I read the field diagrams that the steel frame and polycarbonate sheet will *mass* more than 5 pounds, but springs in the side channels will reduce lifting force to just 5 pounds. This might be an issue to any mechanism that is trying to lift the portcullis quickly and inertia becomes a factor.

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