Here's an example of how a torsion spring hinge works. A bracket clips on to the lip of a composter. A steel rod joins the compost lifter to the bracket, creating a hinge.

Garage doors don't just protect vehicles—they also strongly define a home's exterior look. Learn about the main types of ...

If you’e ever wondered how the Tesla Model X’s Falcon Wing doors worked, here’s a demonstration video complete with the greatest children’s (and adults’, let’s be honest) toys ever: Legos.

Small, square push-tab catch. Silver washed interior; two long ends of the torsion spring hinge hold down the two, flat strap retainers. No marks. Location Currently not on view Credit Line Gift of ...