A yarn tensioner is adapted for adjusting tension in a running yarn. The yarn tensioner has a base, an adjustable pin rack, a fixed pin rack, and a fastener assembly. The adjustable pin rack is carried by the base and incorporates a first plurality of spaced apart parallel friction pins. The fixed pin rack is carried by the base and incorporates a second plurality of spaced apart parallel friction pins residing alternately between the friction pins of the adjustable pin rack. The running yarn travels across the yarn tensioner by snaking over and under adjacent parallel friction pins of the adjustable pin rack and the fixed pin rack. The fastener assembly attaches the adjustable pin rack to the base, such that the adjustable pin rack is movable relative to the fixed pin rack, thereby controlling frictional drag on the running yarn.

A device for imparting a torsional force onto a wire has a base and a support mounted so as to be rotatable with respect to the base around an axis of rotation. The axis of rotation coincides with a wire path extending through the base and the support. Further, a wire clutching device is mounted on the support and adapted to engage at a wire guided along the wire path, and a rotation mechanism is provided which is adapted for rotating the support with respect to the base.

A device for imparting a torsional force onto a wire has a base and a support mounted so as to be rotatable with respect to the base around an axis of rotation. The axis of rotation coincides with a wire path extending through the base and the support. Further, a wire clutching device is mounted on the support and adapted to engage at a wire guided along the wire path, and a rotation mechanism is provided which is adapted for rotating the support with respect to the base.

Disclosed is a yarn tensioning system for keeping at least one yarn, which is taken from a yarn storage system to a yarn take-off system of a weaving machine, under tension. The system includes a brake roller around which the yarn is at least partially wound, and a motor for supplying a torque to the brake roller, the motor being actuable in generator operation to keep the yarn under tension between the brake roller and the yarn take-off system. Also disclosed is a weaving machine including such a yarn tensioning system, as well as a method for keeping at least one yarn under tension, the at least one yarn being taken from a yarn storage system to a yarn take-off system.

Disclosed is a yarn tensioning system for keeping at least one yarn, which is taken from a yarn storage system to a yarn take-off system of a weaving machine, under tension. The system includes a brake roller around which the yarn is at least partially wound, and a motor for supplying a torque to the brake roller, the motor being actuable in generator operation to keep the yarn under tension between the brake roller and the yarn take-off system. Also disclosed is a weaving machine including such a yarn tensioning system, as well as a method for keeping at least one yarn under tension, the at least one yarn being taken from a yarn storage system to a yarn take-off system.

Method and apparatus for an assembly which is attachable to a skid-steer or similar front end loader or tractor which is used to install fence wire, including woven wire. The assembly contains a plurality of spindles upon which rolls of wire can be placed, which wire passes through a threader which organizes and separates the wire, then through a clamping device operated hydraulically using electric and hydraulic controllers, then over a roller and around an upright wire guide whereupon the wire is attached to a fence post in a conventional manner. The wire is clamped using a clamping member operated by a hydraulic cylinder to clamp and lock the wire so that the wire can be stretched by the engine powered skid-steer, front end loader or the like so that the wire can be tightly attached to each fence post in a series operation. The plurality of spindles is disposed on an upright central stanchion attached to a platform so that the wire can be easily placed on and removed from the spindle. An alternative embodiment is shown for use with woven wire.

Method and apparatus for an assembly which is attachable to a skid-steer or similar front end loader or tractor which is used to install fence wire, including woven wire. The assembly contains a plurality of spindles upon which rolls of wire can be placed, which wire passes through a threader which organizes and separates the wire, then through a clamping device operated hydraulically using electric and hydraulic controllers, then over a roller and around an upright wire guide whereupon the wire is attached to a fence post in a conventional manner. The wire is clamped using a clamping member operated by a hydraulic cylinder to clamp and lock the wire so that the wire can be stretched by the engine powered skid-steer, front end loader or the like so that the wire can be tightly attached to each fence post in a series operation. The plurality of spindles is disposed on an upright central stanchion attached to a platform so that the wire can be easily placed on and removed from the spindle. An alternative embodiment is shown for use with woven wire.

A yarn tensioner is adapted for adjusting tension in a running yarn. The yarn tensioner has a base, an adjustable pin rack, a fixed pin rack, and a fastener assembly. The adjustable pin rack is carried by the base and incorporates a first plurality of spaced apart parallel friction pins. The fixed pin rack is carried by the base and incorporates a second plurality of spaced apart parallel friction pins residing alternately between the friction pins of the adjustable pin rack. The running yarn travels across the yarn tensioner by snaking over and under adjacent parallel friction pins of the adjustable pin rack and the fixed pin rack. The fastener assembly attaches the adjustable pin rack to the base, such that the adjustable pin rack is movable relative to the fixed pin rack, thereby controlling frictional drag on the running yarn.

A yarn tensioner is adapted for adjusting tension in a running yarn. The yarn tensioner has a base, an adjustable pin rack, a fixed pin rack, and a fastener assembly. The adjustable pin rack is carried by the base and incorporates a first plurality of spaced apart parallel friction pins. The fixed pin rack is carried by the base and incorporates a second plurality of spaced apart parallel friction pins residing alternately between the friction pins of the adjustable pin rack. The running yarn travels across the yarn tensioner by snaking over and under adjacent parallel friction pins of the adjustable pin rack and the fixed pin rack. The fastener assembly attaches the adjustable pin rack to the base, such that the adjustable pin rack is movable relative to the fixed pin rack, thereby controlling frictional drag on the running yarn.

A system includes a trailer frame, a lifting mechanism coupled to the trailer frame, wherein the lifting mechanism is configured to raise or lower a coil of pipe or a reel of pipe, a braking mechanism configured to apply pressure to the pipe while the pipe is being deployed by the system, and a hydraulic power unit configured to hydraulically power the system.