This is a counterweight system. The rescuer is on one side, the victim on the other. The rescuer unweights the rope on the vicim’s side by pulling on it. The victim ascends and the rescuer ascends. The advantage of this system is that it is easy to do with little equipment. Engaging the counterweight is the step that demands the most energy. After that, it is important to be careful to keep the system under control. Be careful when there is a significant weight difference between the rescuer and the victim.
Releasing The Victim-Raising
This involves using a mechanical advantage pulley system in order to early raise the victim. A rescuer working along uses a mechanical advantage system to reduce effort. the disadvantage is that a long rope is required. If there are enough rescue, a lower mechanical advance is used to speed up the operation.
Progress Capture Pulley Products Shown
Pulleys with an integrated progress capture system many be used to replace a traditional pulley/rope clamp set up in hauling systems.
The Petzl PRO TRAXION is a very efficient camming pulley. Designed to be a loss zero pulley, the PRO TRAXION is ideal in haul systems.
A compact and surprisingly versatile tool, the Petzl MICRO TRAXION combines a micro pulley with a rope camming device.
More Information On Counterbalance and Counterweight Rescuers
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