Systems include a creel assembly supporting a plurality of spools containing at least one cord having an indeterminate length such that a plurality of cords are supported on the creel assembly. A tensioner assembly operative to tension approximately equal predetermined lengths of the plurality of cords received from the creel assembly. A building mandrel supported for rotation and translation. A head assembly supported in fixed relation to the building mandrel. The head assembly is positioned co-axially such that the building mandrel can pass through an opening in the head assembly during translation. Methods of manufacture are included, as are flexible spring members and gas spring assemblies.

A method for binding a cylindrical part by the tensioned winding of fibers, the method including a preliminary step of passing the fibers around at least two braked tensioning cylinders in order to increase the tension in the fibers, wherein the method includes increasing the diameter of the cylinders as the tension in the fibers increases.

A fall protection device includes a frame, a rotation unit, a safety belt, and a braking unit. The rotation unit is rotatably disposed in the frame; the safety belt is wound up on the rotation unit, and adapted to be pulled to drive a rotation of the rotation unit. The braking unit includes a braking plate, a braking block, and a stopper. The braking plate is connected to the rotation unit, rotates with the rotation unit coaxially. The braking block is pivotally connected to the braking plate, and includes a stopping part. The stopping part of the braking block can be spun out by a centrifugal force produced by a rotation of the braking plate, and abuts against the stopper to limit the rotation of the rotation unit. The braking block includes an abutted part. The stopper is disposed in a movement path of the abutted part.

A fall protection device includes a frame, a rotation unit, a safety belt, and a braking unit. The rotation unit is rotatably disposed in the frame; the safety belt is wound up on the rotation unit, and adapted to be pulled to drive a rotation of the rotation unit. The braking unit includes a braking plate, a braking block, and a stopper. The braking plate is connected to the rotation unit, rotates with the rotation unit coaxially. The braking block is pivotally connected to the braking plate, and includes a stopping part. The stopping part of the braking block can be spun out by a centrifugal force produced by a rotation of the braking plate, and abuts against the stopper to limit the rotation of the rotation unit. The braking block includes an abutted part. The stopper is disposed in a movement path of the abutted part.

Systems include a creel assembly supporting a plurality of spools containing at least one cord having an indeterminate length such that a plurality of cords are supported on the creel assembly. A tensioner assembly operative to tension approximately equal predetermined lengths of the plurality of cords received from the creel assembly. A building mandrel supported for rotation and translation. A head assembly supported in fixed relation to the building mandrel. The head assembly is positioned co-axially such that the building mandrel can pass through an opening in the head assembly during translation. Methods of manufacture are included, as are flexible spring members and gas spring assemblies.

Systems include a creel assembly supporting a plurality of spools containing at least one cord having an indeterminate length such that a plurality of cords are supported on the creel assembly. A tensioner assembly operative to tension approximately equal predetermined lengths of the plurality of cords received from the creel assembly. A building mandrel supported for rotation and translation. A head assembly supported in fixed relation to the building mandrel. The head assembly is positioned co-axially such that the building mandrel can pass through an opening in the head assembly during translation. Methods of manufacture are included, as are flexible spring members and gas spring assemblies.

A yarn tensioner is designed for adjusting tension in a running yarn. The yarn tensioner includes a rotatable tension wheel having opposing yarn-contacting surfaces formed along an annular region thereof and configured to frictionally contact opposite sides of the running yarn such that the running yarn causes rotational movement of the tension wheel. An elongated wheel shaft is directly affixed to the tension wheel. A tension adjustment assembly frictionally contacts the wheel shaft, and creates select rotation resistance between adjacent parts of the assembly and the wheel shaft such that rotation of the tension wheel is adjustably frictionally controlled, thereby adjusting tension in the running yarn.

A yarn tensioner is designed for adjusting tension in a running yarn. The yarn tensioner includes a rotatable tension wheel having opposing yarn-contacting surfaces formed along an annular region thereof and configured to frictionally contact opposite sides of the running yarn such that the running yarn causes rotational movement of the tension wheel. An elongated wheel shaft is directly affixed to the tension wheel. A tension adjustment assembly frictionally contacts the wheel shaft, and creates select rotation resistance between adjacent parts of the assembly and the wheel shaft such that rotation of the tension wheel is adjustably frictionally controlled, thereby adjusting tension in the running yarn.

Systems include a creel assembly supporting a plurality of spools containing at least one cord having an indeterminate length such that a plurality of cords are supported on the creel assembly. A tensioner assembly operative to tension approximately equal predetermined lengths of the plurality of cords received from the creel assembly. A building mandrel supported for rotation and translation. A head assembly supported in fixed relation to the building mandrel. The head assembly is positioned co-axially such that the building mandrel can pass through an opening in the head assembly during translation. Methods of manufacture are included, as are flexible spring members and gas spring assemblies.

Systems include a creel assembly supporting a plurality of spools containing at least one cord having an indeterminate length such that a plurality of cords are supported on the creel assembly. A tensioner assembly operative to tension approximately equal predetermined lengths of the plurality of cords received from the creel assembly. A building mandrel supported for rotation and translation. A head assembly supported in fixed relation to the building mandrel. The head assembly is positioned co-axially such that the building mandrel can pass through an opening in the head assembly during translation. Methods of manufacture are included, as are flexible spring members and gas spring assemblies.