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A Z-Drag or Z-Rig is an arrangement of lines and pulleys, effectively forming a block and tackle, that is commonly used in rescue situations. [1] The basic arrangement results in pulling the hauling end 3 times the distance the load is moved, providing a theoretical mechanical advantage of three to one.
Breeches buoy during the rescue of the SS Northern Pacific on January 2, 1919 The Life Line, by Winslow Homer, 1884, depicts a breeches buoy in use during a rescue operation. A breeches buoy is a rope-based rescue device used to extract people from wrecked vessels, or to transfer people from one place to another in situations of danger.
Crevasse rescue (or crevasse-extraction) is a set of techniques in mountaineering where climbers use their equipment to pull a climber, who has just fallen into a crevasse, to safety. [1] Crevasse rescue is considered a core skill set in alpine climbing, but difficult to do efficiently. [1] [2] It is typically encountered by rope teams on ...
A fourth rescuer worked the pulley. With each ratchet, it felt as if my leg was being ripped off. Tim dug into the sand and got a hand around my ankle and started pulling up.
The workers set up a sophisticated rope-and-pulley system in an attempt to extricate him, but the system failed when put under strain, plunging Jones back into the hole. [12] Jones ultimately suffered cardiac arrest due to the strain placed upon his body over many hours by his inverted, compressed position.
On Thursday, Sept. 26, Hampton rechecked his equipment − rafts, water rescue vests, helmets, flip line − then he and other firefighters visited low-lying areas near the French Broad, advising ...
The Fénix 1 had a larger diameter than the other two capsules and was used in tests in the shaft created by the Schramm Inc. T-130 drill, where it descended to a depth of 610 metres (2,000 ft). [2] Fénix 2 was operated with an Austrian pulley system and was used throughout the rescue of the miners. Fénix 3 was held in reserve and not used.
The base of the tower is hinged and the top of the tower is connected to a pulley system for load lifting. As this is a simple derrick system, it is recommended for use by some agencies as an improvised rescue derrick in an emergency situation where no suitable rescue derrick or crane is available. [1] [2]
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