Evans and his younger brother Evan, along with blacksmith Thomas Clark, developed a device for packing flour barrels using a wooden disc operating by a compound lever and a toggle joint.
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Answers . com defines a " toggle switch " as " A switch that uses a toggle joint with a spring to open or close an electric circuit as an attached lever is pushed through a small arc . " Binary numbers are just a collection of open and closed circuits.
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a joint made by two arms attached by a pivot; used to apply pressure at the two ends by straightening the joint
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