Abstract: Material is supported on rotatable reel means with one end extending therefrom for connection with a well string for a well bore. Movable means support the portion of material extending between the reel means and well string. Means lower and raise the movable means whereby some of the supported material may be selectively moved into the well bore or removed therefrom along with the well string, if desired, without rotating the reel means on which it is supported during the lowering or removing procedure. Means rotate the reel support means to selectively pay out additional material for movement into the well bore or to reeve material removed from the well bore thereon. Control and actuating means effect operation of the various means as desired. Means support the well string and the material to enable the lowering of the well string and material into, and removal thereof, from the well bore.

Abstract: A protective clamp assembly is provided for securing a conductor lines to the production tubing of oil and gas wells and providing for efficient transition of the conductor lines past the various connections of the well tubing. To prevent crushing or other damage to those portions of the conductor lines that are located at tubing connections, the clamp assembly of this invention provides for efficient transition of the conductor lines past the enlarged connections of the tubing. Under circumstances where the tubing is brought into forcible contact with the well casing within which it is received, the protective clamp assembly contacts the well casing thus preventing the well casing from applying crushing force to the conductor lines.

Abstract: An impact- and tension-resistant control line suitable for attachment to an underwater oil or gas flow line, for attachment to a downhole tubing string or for control in subsea workover operations. The control line protector includes a resilient elongated body, any number of hydraulic tubes, electrical and electronic lines within the body and at least two impact-resistant, tensional-bearing members such as wire ropes within the body. When viewed in cross-section, the wire ropes are disposed within the body so that the protected control lines lie between the two wire ropes and a planar force or impact from any direction cannot directly contact the protected control lines. Additional impact-resistant, load-bearing members can be disposed among the protected control lines to insure that a planar force cannot directly contact the protected control lines while the device is attached to a flow line.

Abstract: A unitized marine umbilical cable carrying any number or combination of conventional elements such as hoses and electrical cables. A center stress member disposed along the axis of the marine umbilical cable is capable of supporting an underwater device such as a diving bell should the primary down line break. Cylindrically surrounding the stress member is a compression extrusion of a high strength highly resilient elastomer around which are helically cabled various conventional elements. Within the interstices between the high strength elastomer and the helically cabled elements is a resilient fill material. The resilient fill material and high strength highly resilient, low durometer elastomer serve as a radial shock absorber against tensional impact upon the umbilical or radial forces thereupon.

Abstract: A bristle for mounting on a rotatable drum or shaft to form a sweeping device for use in maintaining railroad rails, ties, ballast and way. The bristle contains a length of wire rope with a lubricant within the interstices of the wire and strands of the rope. A low density polyethylene jacket is high compression extruded onto the exterior and into the intersticial area of the length of wire rope thereby containing and permanently sealing the lubricant within the wire rope, increasing the longitudinal stiffness of the rope, and effecting a mechanical interlock between the wire rope and the polyethylene jacket which both secures the strands of the rope together and secures the polyethylene jacket to the rope. A polyurethane jacket is extruded onto the exterior of the polyethylene jacket thereby stiffening the wire rope and polyethylene jacket, protecting the same from abrasion and cutting, and preventing splaying, unraveling or flaring of the bristle.

Abstract: A diving umbilical cable suitable for supporting an underwater diver and, at the same time, supplying lines for air supply, depth measuring and communication elements such as, but not limited to, telephone wires, television coaxial cable, and fiberoptic bundles. The air supply line is a standard load bearing hose whose axis is substantially the same as that of the umbilical cable, around which are helically disposed any number of elements. Such elements are longer per unit length of the diving umbilical cable than is the center load bearing hose. Extruded over the center load bearing hose with the helically wrapped elements is a protective jacket which assists in maintaining the helically wrapped elements in position and, at the same time, protects them from wear and tear. The protective jacket is perforated along its length so that air may escape when the umbilical cable is lowered into the water and water may escape when the diving umbilical cable is pulled from the water.

Abstract: A flexible, high load bearing, electrically conductive buoyant tether cable includes a center stress core having a plurality of jacketed stress bearing members which are in turn enclosed within a plastic-like core jacket. Seven conductor elements are cabled around the core, including three pairs of conductor elements and a jacketed coaxial cable. Each of the conductor element pairs includes a core, five twisted pairs of individually insulated, electrically conductive wires cabled around the conductor element core and a conductor tape binder surrounding the cabled pairs of wires. The conductor elements are cabled around the center stress core and are themselves enclosed by an outer tape binder and jacket. A plurality of intersticial stress members occupies a portion of the corresponding interstices between the cabled conductor elements and the outer tape binder.