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  2. Garage door - Wikipedia

    en.wikipedia.org/wiki/Garage_door

    The most common causes of injury from garage door systems include falling doors, pinch points, improperly adjusted opener force settings, and safety eyes, attempts at do-it-yourself repair without the proper knowledge or tools, and uncontrolled release of spring tension (on torsion spring systems). A garage door with a broken spring or the ...

  3. Torsion spring - Wikipedia

    en.wikipedia.org/wiki/Torsion_spring

    Garage Door Sectional Torsion Spring A mousetrap powered by a helical torsion spring Video of a model torsion pendulum oscillating. A torsion spring is a spring that works by twisting its end along its axis; that is, a flexible elastic object that stores mechanical energy when it is twisted.

  4. Torsion bar suspension - Wikipedia

    en.wikipedia.org/wiki/Torsion_bar_suspension

    Torsion bar suspension inside Leopard 2 Schematic of a front axle highlighted to show torsion bar. A torsion bar suspension, also known as a torsion spring suspension, is any vehicle suspension that uses a torsion bar as its main weight-bearing spring. One end of a long metal bar is attached firmly to the vehicle chassis; the opposite end ...

  5. Torsion constant - Wikipedia

    en.wikipedia.org/wiki/Torsion_constant

    The torsion constant or torsion coefficient is a geometrical property of a bar's cross-section. It is involved in the relationship between angle of twist and applied torque along the axis of the bar, for a homogeneous linear elastic bar. The torsion constant, together with material properties and length, describes a bar's torsional stiffness.

  6. Twist-beam rear suspension - Wikipedia

    en.wikipedia.org/wiki/Twist-beam_rear_suspension

    The twist-beam rear suspension (also torsion-beam axle, deformable torsion beam, or compound crank) is a type of automobile suspension based on a large H- or C-shaped member. The front of the H attaches to the body via rubber bushings , and the rear of the H carries each stub-axle assembly, on each side of the car.

  7. Torsion pendulum clock - Wikipedia

    en.wikipedia.org/wiki/Torsion_pendulum_clock

    A crutch device at the top of the torsion spring engages a lever with two anchor-shaped arms; the two arms alternately engage the teeth of the escape wheel. As the anchor releases a tooth of the escape wheel, the lever, which is fixed to the anchor, moves to one side and, via the crutch, gives a small twist to the top of the torsion spring.

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