A rope and method of making the same. The rope is adapted to engage a structural member and comprises a plurality of yarns. At least one of the yarns comprises a first set of first fibers and a second set of fibers. The first and second sets of fibers are combined using a false twisting process such that the second fibers do not extend the length of the rope and the second fibers indirectly bear tension loads on the rope. The first fibers substantially determine load bearing properties of the ro...

A twisted rope for use in rigging systems that includes a differently colored yarn positioned within at least one strand. As the rope is worn, the differently colored yarn will become exposed, thereby serving as a visual indicator of wear to the rope. A plastic strip printed with identifying information about the rope is placed within the fibers of the rope during manufacture may also be positioned with a strand of the twisted rope. A user can simply unravel one end of the rope and read the info...

A rope and method of making the same. The rope comprises a plurality of yarns. At least one of the yarns comprises first and second sets of fibers. The first fibers are formed of a first material, and the second set of second fibers at least partly surrounds the first fibers. The second fibers are formed of a second material. The first material defines a set of operating characteristics adapted to bear tension loads on the rope. The second material defines a set of operating characteristics adap...

A core-in-sheath type composite stretch yarn, having excellent stretchability and soft hand and capable of being dyed in dark colors, comprises a core portion constituted from a elastic yarn formed from at least one elastic fiber and having an ultimate elongation of 70% or more and a sheath portion formed from a non-elastic yarn comprising a plurality of non-elastic fibers having an ultimate elongation of 70% or more and surrounding around the core portion, and is useful for producing a woven or...

A gun telescope extender is an elongated tube with an unobstructed axial bore of uniform diameter and about six bellows folds between its eye end and its scope end. The scope end of the tube includes outward projecting, integral, pull tabs for removing the extender from the telescopic lens. The eye end of the tube is pre-formed with an oblique and slightly concave rim to fit the eye and seal it from light. The eye end is free of outward flare. The bellows compress evenly, without tilt or undue r...

A helicopter is driven by means of a rotor that is connected with an internal-combustion engine. The air-cooled internal-combustion engine has a horizontally opposed construction and is arranged within walls of a cabin of the helicopter. In order to supply the internal-combustion engine with cooling air and intake air, air inlet openings are provided at the side walls of the cabin. For the discharge of the cooling air, outlet openings are arranged at the underside of the cabin.

A process for producing composite yarns comprises the steps of first wrapping a second yarn around the perimeter of and along the length of a first yarn and then heating the yarn intermediate produced by such wrapping to produce a composite yarn. When a heat-shrinkable yarn is used in producing such a composite yarn, the shrinkage of the heat-shrinkable yarn enables the production of composite yarns possessing aesthetic qualities similar to those exhibited by yarns produced by much more complica...

An electrically conductive yarn comprises stainless steel fibers. The electrically conductive yarn comprises at least one elongated element, which has an outer surface being provided out of metal or metal alloy having a lower specific electrical resistance than the stainless steel fibers.

A bowstring including a plurality of strands, each strand including at least one first fiber and at least one second fiber, at least one of the first fiber or the second fiber being liquid crystal polymer and at least one of the first fiber or the second fiber being ultra high molecular weight polyolefin.

A breather outlet for the gearbox of an aircraft mounted gas turbine engine comprises an aerodynamic mast which extends from the engine nacelle. The mast contains a breather duct which interconnects the interior of the gearbox with an exhaust outlet. The exhaust outlet is generally rearwardly facing and is spaced apart from the engine nacelle so as to avoid oil staining of the nacelle.