The disclosures concerns a wire guide assembly with at least one sheave for stringing utility cable about utility structures such as towers and telephone poles. A wire guide assembly comprises: a plurality of plates forming a housing, a sheave, and a side gate with an elongated guide arm extending therefrom, wherein the side gate is pivotally attached to a plate of the housing forming a channel corresponding to a volume between the sheave, the side gate, and the housing, with the guide arm attached to the housing at an angle between 45 and 90 degrees. The wire guide assembly is further characterized in that the wire guide assembly can be used in suspension, or attached to a cross arm of a utility structure, wherein the elongated guide arm extending outwardly from assembly can be utilized for catching utility wire as it is introduced to the assembly via a helicopter.

A traveler for electrical power lines, comprising: a) a body portion comprising rubber, plastic or a combination thereof; and b) an insulator clamping portion.

A grounding attachment for use with a CRS Roller. The grounding attachment has a body having two arms. Each arm is pivotally attached to the body. The arms are configured to be biased downward onto a conductor positioned on the CRS Roller. Preferably a torsion spring biases the arms downward such that a roller attached to each arm rests on a conductor positioned within the radius block. Energy is conducted from the conductor, through the roller and arm to a grounding lug that is configured for a lineworker to attach a ground to the grounding device to allow the energy to reach the earth.

The disclosed technology includes a line pulling system that may include an engagement assembly, which may include an engagement cable configured to be pushed or pulled. The assembly may also include a cable mounting assembly connected to the support member and the engagement cable, a hinged linkage connected to the support member and the engagement cable and configured to partially rotate in response to a push or pull from the engagement cable, an engagement arm connected to the hinged linkage and configured to move according to the rotation motion of hinged linkage, a coupling ring connected to the engagement arm and configured to transition between an engaged position and a disengaged position in response to movement from the engagement arm.

The disclosed technology includes a line pulling system that may include an engagement assembly, which may include an engagement cable configured to be pushed or pulled. The assembly may also include a cable mounting assembly connected to the support member and the engagement cable, a hinged linkage connected to the support member and the engagement cable and configured to partially rotate in response to a push or pull from the engagement cable, an engagement arm connected to the hinged linkage and configured to move according to the rotation motion of hinged linkage, a coupling ring connected to the engagement arm and configured to transition between an engaged position and a disengaged position in response to movement from the engagement arm.

A wire gripper 10, which is lightweight and can perform a work for holding a gripped state of a tensioned wire easily and safely, is provided with a stationary gripping body 12 having a wire-like body pressing-down portion 24; a swinging member 14 swingably attached to the stationary gripping body by a supporting shaft 70; a movable gripping body 16 having a wire-like body holding portion; a connection member 18 swinging the swinging member; and a swinging member restricting portion 20 restricting an amount of swinging of the swinging member, wherein the stationary gripping body 12 is formed with reinforcing portions 32 and 40 in a region in which the supporting shaft is attached, and a wire-like body W clamped does not disengage from between the movable gripping body 16 whose movement amount is restricted by the swinging member restricting portion 20 and the stationary gripping body 12.

A wire gripper 10, which is lightweight and can perform a work for holding a gripped state of a tensioned wire easily and safely, is provided with a stationary gripping body 12 having a wire-like body pressing-down portion 24; a swinging member 14 swingably attached to the stationary gripping body by a supporting shaft 70; a movable gripping body 16 having a wire-like body holding portion; a connection member 18 swinging the swinging member; and a swinging member restricting portion 20 restricting an amount of swinging of the swinging member, wherein the stationary gripping body 12 is formed with reinforcing portions 32 and 40 in a region in which the supporting shaft is attached, and a wire-like body W clamped does not disengage from between the movable gripping body 16 whose movement amount is restricted by the swinging member restricting portion 20 and the stationary gripping body 12.

A stringing block system is disclosed. The stringing block system includes a plurality of plates forming a housing coupled to a base, at least one sheave coupled to the housing, and a side gate. In some embodiments, the base is an adjustable base configured to rotate the stringing block system forward or backward such that one or more sheaves will form an angle with the respect to a ground surface. A desired angle can easily be achieved to create proper alignment with a successive structure. The adjustable base is structured such that rotating the stringing block system does not require disengaging the entire system from a structure. In some embodiments, the stringing block system includes an extendable guide arm coupled to the housing, which provides a greater area for a helicopter pilot to work with when lowering a wire onto the stringing block system.

A stringing block system is disclosed. The stringing block system includes a plurality of plates forming a housing coupled to a base, at least one sheave coupled to the housing, and a side gate. In some embodiments, the base is an adjustable base configured to rotate the stringing block system forward or backward such that one or more sheaves will form an angle with the respect to a ground surface. A desired angle can easily be achieved to create proper alignment with a successive structure. The adjustable base is structured such that rotating the stringing block system does not require disengaging the entire system from a structure. In some embodiments, the stringing block system includes an extendable guide arm coupled to the housing, which provides a greater area for a helicopter pilot to work with when lowering a wire onto the stringing block system.

It is intended to provide a cable pulling machine that can avoid, even when installed at a high place, a stop of pulling and a cable installation method. A cable pulling machine according to the present invention includes two roller portions c having outer peripheries between which a cable a is to be held and a guide f that introduces the cable a between the roller portions c. The guide f adjusts an angle θ formed between a straight line connecting respective centers o of the roller portions c and the cable a introduced between the roller portions c to a value of not less than 45° and not more than 90°.