Fasteners {hinge}| can rotate around an axis or pin {hinge pin}. Hinge sides {leaf, hinge} can attach on door or jamb outside surface {surface hinge} or on door or jamb edge {mortise hinge}. Hinge pin can insert into holes {knuckle, hinge}. Leaf with more knuckles is on hinge stationary part. Hinges {loose hinge} can allow one leaf to slide off pin of other leaf. Hinges {piano hinge} can have a permanent pin with two leaves that can meet parallel and flat.
Practical Affairs>Machine>Kinds>Mechanical>Rotation
7-Machine-Kinds-Mechanical-Rotation
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Date Modified: 2022.0224