Search Results for: pulley effect

Mechanical Advantage: Calculation of MA with the T-Method in a Simple System

T Method Applied To Mechanical Advantage Systems Using Rope Grabs. Calculating mechanical advantage: the T-system 1. Assume continuous strands of rope have the same amount of tension. If we start at the point where effort is applied and assume that we apply one unit of tension (1T) then we can assume that the tension along …

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Rescue tripods “falling over”

Rescue tripods “falling over” Natural, improvised, and purpose built high directionals are used to manage loads over edges and through openings. They can make otherwise impossible tasks possible. There are now many proprietary solutions with almost limitless configurations that are being used by rope technicians for access, standby rescue, technical rescue, and load management. High …

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Peak Rescue Institute: Team Based Lower, Pick-Off, to Raise | Block and Tackle

Team Based Lower Pick-Off With adequate personnel for rigging and good communication, the team based lower pick-off is the method of choice for extricating and uninjured victim. The team based pick-off method is for patients… •Stranded without a rope on ledges or platforms •Suspended from climbing rope or safety tethers. •Patients needing extrication •Overly aggressive …

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Peak Rescue Institute: Twin Tension Rope System 1 | Block and Tackle

Two Rope System The Two Rope System is used as an alternative to deflection lines or Tyrolean traverses when spanning large gaps. It incorporates two main lines and two belay lines that work together. While one system lowers, the other raises. When the haul becomes to difficult for the hauling team, the lowering team simply …

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Twin Highline Unit 3 : Working Platform for Ascent and Descent

  The third part in the series on the rigging of a Twin Highline. This unit goes through the pieces and theory behind the “Platform” from which a rescuer or worker can move across the area beneath them, as well as lower down to it and ascend back up to the line centered around the …

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Twin Highline Unit 2 : Twin Highline and Twin Track Line Tandem Tension System

  The lower section of the Twin Highline is the Tandem Tension System. Where the lines are pulled tight to allow the worker or rescuer to descend with minimal give in the lines. This an overview of a working at height rope access job site. The roof top of a tank can not be walked …

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