Provided is an improved come along device with a handle, a release trigger for a stop pawl, and a push tab for a release pawl. The handle may allow an operator to better grasp the come along device. The release trigger allows an operator to release tension in a cable by disengaging the stop pawl when the trigger is pulled and engaging the stop pawl when the trigger is released. The push tab allows an operator to disengage the release pawl when the push tab is pressed and engage the release pawl when the push tab is pulled.

A device for tensioning an elongated hoisting member, comprises: a first friction-generating member rotatably supported around a first support member; a second friction-generating member rotatably supported around a second support member, the first and second friction-generating members being adapted to provide friction to the elongated hoisting member when the friction-generating members are pressed against each other with a portion of the elongated hoisting member therebetween. A brake is provided for braking the rotation of the friction-generating members around the support members. There is also described a system that includes such a device, as well as a method for operating such a system.

A machine for extracting a ductile pipe. The machine has a vise which can grip the pipe, and a wire clamp. Each of the wire clamp and vise are supported on a carriage which is movable relative to a frame. This enables the vise to grip and pull the ductile pipe. Additionally, a wire strand may be disposed through the pipe from a far end to the end at which the machine is placed. The wire clamp allows the machine to pre-stress the strand to improve the extraction of the ductile pipe.

The present application describes a wireless remote orbiter based on a 5G frequency band. The orbiter may have a main rail which is fixedly mounted on bearing beam of stage and a rack which is mounted with translational drive means and lifting drive means. The main rail comprises a vertical rail and a horizontal rail which is formed integrally below the vertical rail, load-bearing wheels are fixedly mounted on the rack against the upper of the horizontal rail, translational friction wheel groups are connected to the translational drive means against the vertical rail, the lifting drive means are connected to a dual rope hoisting mechanism. A sliding contact line is laid with the rail on the main rail. A collector supplied power from sliding contact line conductor is mounted on the rack.

The present application describes a wireless remote orbiter based on a 5G frequency band. The orbiter may have a main rail which is fixedly mounted on bearing beam of stage and a rack which is mounted with translational drive means and lifting drive means. The main rail comprises a vertical rail and a horizontal rail which is formed integrally below the vertical rail, load-bearing wheels are fixedly mounted on the rack against the upper of the horizontal rail, translational friction wheel groups are connected to the translational drive means against the vertical rail, the lifting drive means are connected to a dual rope hoisting mechanism. A sliding contact line is laid with the rail on the main rail. A collector supplied power from sliding contact line conductor is mounted on the rack.

A pipe replacement system and cable guide frame are shown. Configurations are shown that include plurality of guide pulleys attached to the cable guide frame to define a curved path between a pipe to be replaced and a cable pulling system. Configurations are shown where a pipe breaking tool is pulled over the plurality of guide pulleys for ease of removal after a replacement operation. Configurations are also shown that include a stationary splitter adjacent to the cable pulling system to prevent jamming of the cable pulling system.

A portable winch system includes a frame, a pair of wheels, a motor that is secured to the frame; and a capstan that is secured to the frame and that is rotatable via the motor. A rope is wound about the capstan in a manner that enables a user to grasp a tail end of the rope and induce friction between the capstan and the portion of the rope that is wound about the capstan. A tow end of the rope is attachable to an object to be pulled by the winch. An input guide attached to the frame is configured to receive the rope and direct the rope toward the capstan as the object is pulled toward the winch. An alignment guide attached to the frame is configured to contact the rope and align the rope about the capstan as the rope is wound about the capstan.

Winches with dual mode remote controls, and associated systems and methods are disclosed. A representative winch can include a frame, a cable drum rotatably supported by the frame, a drive motor operatively connected to the cable drum, and a winch control module. The winch control module can include an enable/disable circuit having a normally open ground path connection and a controller having wireless capability connected to the enable/disable circuit. The controller can include instructions to disable the wireless capability of the controller when the normally open ground path connection is completed.

The invention provides a well rescue device. The well rescue device includes a support assembly, a seating assembly and a gripper assembly. The support assembly includes two holding arms configured to hold the victim. The seating assembly includes an extendable seat rod and a seat attached at an end of the extendable seat rod. The seat is configured to move relative to the extendable seat rod in order to facilitate positioning of the seat relative to the victim. The gripper assembly includes a gripper that is configured to facilitate positioning of the victim relative to one or more of the support assembly and the seating assembly.

The invention provides a well rescue device. The well rescue device includes a support assembly, a seating assembly and a gripper assembly. The support assembly includes two holding arms configured to hold the victim. The seating assembly includes an extendable seat rod and a seat attached at an end of the extendable seat rod. The seat is configured to move relative to the extendable seat rod in order to facilitate positioning of the seat relative to the victim. The gripper assembly includes a gripper that is configured to facilitate positioning of the victim relative to one or more of the support assembly and the seating assembly.