ROLLNLOCK is the multipurpose device CLIMBING TECHNOLOGY dedicates to mountaineering, rope access work and self-rescue. Compact, ultralight and easy to handle, it offers three different modes of ...

The retrievable redirect using a revolver rig and pulley provides arborists with an efficient method for managing rope angles, reducing friction, and improving overall work positioning while climbing.

Introduction Before the industrial age people largely had to rely on muscle power to move and lift heavy objects. Simple machines such as pulleys, levers and ramps made it easier for humans to lift ...

The HitchMaster is a simple pulley with no moving parts. Like any pulley, it works by trading force for distance: it's easier to lift, say, an engine block, but you'll have to pull the rope a lot ...