An effective rotation angle is typically created in the formed stress metal springs, defining a looped spring structure.

The structural components (2, 3) can be maintained in their positions parallel to each other by means of tension springs (21).

Two tension springs (6) are fixed with two sides of the upper bracket (3) and the under bracket (5).

The power connectors may also include tensioning springs that are capable of generating tensile loads within the loading fibers.

For best adjustment, two sets of countertension springs are provided (one for each block), and also a special adj. device.

The cords are at one end connected by tension springs (9) with a mounting member (10) for tightening the cord.

Tension is maintained on the covering panels both in covering and uncovering the greenhouse by the two sets of cables and tensioning springs (50) that compensate for the wrapping around the tension shaft.

The platform element is suspended in a seat frame by means of a spring unit comprising a transverse wire (4) formed integrally with tension springs (5).

Strong garage doors utilize tension springs which are mounted on each side of the doorway.

The usual tension springs on the upper shackle are eliminated to thereby permit less force needed for its operation.

This configuration, with an integrated motor, enables the elimination of different items from the classic Bowden system - spirals, nozzles and tension adjustors - which results in a the greater economy of the system.

Tension springs with very little wear and the approved high quality sharpening rods remain unchanged.

The deformable elements may be integrally formed as molded-in-place polymer tensioning springs or separately formed as metallic elements.

Described is secondary suspension system for rail vehicles, the suspension system being designed in the form of helical steel springs or elastomeric springs, and a hydraulic or electromechanical bracing element being mounted in parallel with the springs.

The springs allow for a significant increase in the release voltage for a given pull in landing voltage.