Abstract: The present invention is a method of manufacturing plated wire. The method includes drawing a feed stock to form drawn wire, tempering the drawn wire to form tempered wire and plating the tempered wire to form the plated wire. The plated wire exhibits a tensile strength that substantially meets ASTM A229-99.

Abstract: The present invention is a method of manufacturing plated wire. The method includes drawing a feed stock to form drawn wire, tempering the drawn wire to form tempered wire and plating the tempered wire to form the plated wire. The plated wire exhibits a tensile strength that substantially meets ASTM A229-99.

Abstract: An apparatus for winding a spring on a shaft, such as for counterbalancing a roll-up door, includes a housing that carries a transmission which is positionable over the shaft. The transmission is configured to be coupled via a connector to one end of the spring, while the other end of the spring is fixed to the shaft. Rotation of the transmission results in a turning of the connector and a winding and/or elongation of the spring.

Abstract: The disclosure sets forth an apparatus and method for counterbalancing a roll-up door. A first threaded shaft is concentrically disposed around a torsion shaft and a spring is also disposed around the torsion shaft. The spring has a first end and a second end. The first end of the spring is secured to a first anchor plate that is threadably mounted to thread onto the threaded shaft. The second end of the spring is fixed relative to the torsion shaft. When the threaded shaft is rotated, the first anchor plate moves along the threaded shaft, thereby longitudinally stretching the spring a predetermined distance. A first stop prevents the movement of the first anchor plate along the threaded shaft beyond a predetermined position so that further rotation of the threaded shaft winds the spring thereby applying a predetermined counterbalancing torque on the torsion shaft.