A pull-in head assembly (8) for releasably connecting a pulling arrangement (112) to an elongate flexible structure (4, 6). The pull-in head assembly 8 comprises a pull-in head having a body (30) which defines a pulling axis X of the pull-in head. The body (30) has a front end and a rear end and a bore (48) which extends through the body (30) along the pulling axis X. The bore (48) is configured such that a pulling line (28) can be threaded through the body (30).

A pull-in head assembly (8) for releasably connecting a pulling arrangement (112) to an elongate flexible structure (4, 6). The pull-in head assembly (8) comprises a body (30) which defines a pulling axis X of the pull-in head assembly (8) and a retaining member (32) arranged around the pulling axis X. The retaining member (32) is configured to secure the pull-in head assembly (8) to an elongate flexible structure (4, 6) such that, in use, a pulling force exerted on the pull-in head assembly (8) along the pulling axis X is transferred to the elongate flexible structure (4, 6). The retaining member (32) is configured to release the pull-in head assembly (8) from the elongate flexible structure (4, 6) when the pulling force exceeds a predetermined threshold such that the pull-in head assembly (8) can be separated from the elongate flexible structure (4, 6).

A pushing tool for propelling cable into a duct. The pushing tool includes a drive wheel that is coupled with a base and a rotatable handle. A first cable guide and a second cable guide are configured to hold the cable. A duct guide is configured to hold the duct. Furthermore, a tension wheel is configured to interact with the drive wheel such that an orifice is formed between the tension wheel and the drive wheel, the orifice being configured to receive the cable. Upon rotation of the rotatable handle, the drive wheel interacts with the tension wheel to propel the cable into the duct.

Devices, systems and methods to prevent damage to power and communication conductors located in cold occurring regions, with an elongated cylindrical tubular assembly of closed cell foam within a braided/woven layer that can be sealed to provide longitudinal strength and a snag resistant durable and flexible outer coating. The assembly along with communication and power lines is pulled through new power and communication ducts and conduits and in retrofitting existing power and communication ducts, so that the assembly reduces the volume spacing in the ducts/conduits that can be damaged by water intrusion which expands during freeze conditions.

A self-locking securing device facilitates secure connection to cable or elongated object ends, and employs a retaining jaw, a barrel, a spacer and a sleeve. In various embodiments, the retaining jaw and spacer are formed as part or all of a replaceable cartridge and can include a fastening ring therebetween. Embodiments further include a bottom locking device for securely retaining the cartridge and elements within the barrel.

A method of delivering cables for a data center comprises: collecting information for different cables needed in a room of the data center, wherein the information includes cable type, length, and intended location data; determining groups of the different cables for bundling together at the data center based on the information; and for at least one of the groups, supplying the different cables for the group together as a common unit.

An enhanced apparatus and method for securing a wire to a pulling cable for pulling wire. Specifically, the pulling cable and wire are attached via a pulling head body. The wire is inserted into an end of the pulling head body and secured by crimping the pulling head body against the wire. Further, crimp zone indicators positioned on the outer surface of the pulling head body indicate the optimal zone of crimping to achieve substantial contact between the pulling head body and the wire. A pulling cable is secured to the pulling head body via a ball swage that comprises a tapped surface.

A quick release cable pull-in system for securing a conduit (28) in which is arranged a cable (38) to the mouth of a J-Tube (12) or other opening in a structure. The system includes a collar (30) with a groove (32) attached to the end of the conduit. A rotatable locking arm (20) releasably engages the collar when a tapered nose (34) cone is pulled into the J-Tube. The rotatable locking arm has a shoulder member (44) that is biased downward into the interior of the cylindrical opening. According to one aspect, the shoulder member is downwardly biased by an elastomeric collar (46. According to another aspect, the shoulder member is downwardly biased by a spring, by magnetic forces or other means.

A switching assembly for rope-pulling equipment including mechanisms for holding an electrically-operated power tool for rotating a capstan about an axis and which power tool includes a depressible ON/OFF switch utilizes an actuator having a switch-engaging portion which is mounted for pivotal movement between a first condition at which the switch of the power tool is in an OFF position and a second condition at which the switch of the power tool is depressed by the switch-engaging portion to switch the power tool ON. The actuator further includes a rope-engaging section so that by wrapping a section of rope to be pulled about the capstan, routing an end of the rope about the rope-engaging section and then appropriately pulling upon the end of the rope, the actuator is pivoted from the first to the second condition, and the rope is advanced along the equipment by the rotating capstan.

A wire-anchoring system for use with a core about which a wire is desired to be wound utilizes a lanyard assembly which includes a cord portion and a connector body connected to the cord portion. The elongated connector body has two opposite ends and a hollow interior including an opening which opens out of the body at one end thereof and into which the terminal end of the wire can be inserted for purposes of anchoring the wire to the connector body. In addition, the cord portion of the wire has a free end which is securable to the outer surface of the core adjacent the securement location thereon so that by securing the free end of the cord portion to the outer surface of the core and anchoring the terminal end of the wire to the connector body, the wire is anchored to the core for an operation involving the winding of the wire about the core.