18,519
edits
Sheepshank: Difference between revisions
From ScoutWiki, For Everyone, Everywhere involved with Scouting and Guiding...
m
Robot: Automated text replacement (-\[\[Synthetic fiber\|([\w|\s]*)\]\] +\1); cosmetic changes
m (robot Adding: pt:Catau) |
m (Robot: Automated text replacement (-\[\[Synthetic fiber\|([\w|\s]*)\]\] +\1); cosmetic changes) |
||
| Line 42: | Line 42: | ||
== Usage == | == Usage == | ||
Sheepshank knots may typically used for securing loads to trucks or [[Trailer (vehicle) | trailers]], and in [[sailing]] applications. | Sheepshank knots may typically used for securing loads to trucks or [[Trailer (vehicle)|trailers]], and in [[sailing]] applications. | ||
Example use, such as in tying down a load on a truck, is as follows: | Example use, such as in tying down a load on a truck, is as follows: | ||
| Line 51: | Line 51: | ||
* Pass the free end of the rope around the rail on the side, then back through the loop on the sheepshank nearest the rail, then back to the rail. | * Pass the free end of the rope around the rail on the side, then back through the loop on the sheepshank nearest the rail, then back to the rail. | ||
* Pull hard on the free end of the rope to tighten it. The structure of the knot provides a leveraging effect like a [[block and tackle]], so that considerable tension can be brought to bear to secure the load. | * Pull hard on the free end of the rope to tighten it. The structure of the knot provides a leveraging effect like a [[block and tackle]], so that considerable tension can be brought to bear to secure the load. | ||
* When the tension is sufficient to secure the load but not damage it, pass the rope around the rail and tie it in a series of [[half hitch | * When the tension is sufficient to secure the load but not damage it, pass the rope around the rail and tie it in a series of [[half hitch]]es. If the rope is likely to bind and be difficult to untie then use a loop of the free end, so that each half hitch can be undone by pulling on the free end of the loop. | ||
Other knots which may have similar uses are the [[clove hitch]] and [[half hitch]]. | Other knots which may have similar uses are the [[clove hitch]] and [[half hitch]]. | ||
==Disadvantages== | == Disadvantages == | ||
The sheepshank was developed before the use of modern "slippery" | The sheepshank was developed before the use of modern "slippery" synthetic ropes. Constructed from such ropes, under load, it can fail. It is strongly advised that one test the knot under load before trusting it. | ||
==Variants== | == Variants == | ||
===Man-o'war sheepshank=== | === Man-o'war sheepshank === | ||
The '''man-o'war sheepshank''' is a sheepshank [[knot]] with a [[Handcuff knot]] in the middle. | The '''man-o'war sheepshank''' is a sheepshank [[knot]] with a [[Handcuff knot]] in the middle. This configuration with the half-hitches formed close to the central knot is used in [[rope rescue]] and is called a [[Fireman's chair knot]]. | ||
[[image:man-o'-war-sheepshank.png]] | [[image:man-o'-war-sheepshank.png]] | ||
==External links== | == External links == | ||
*[http://www.boatsafe.com/marlinespike/sheepshank.htm Boatsafe.com] | *[http://www.boatsafe.com/marlinespike/sheepshank.htm Boatsafe.com] | ||
*[http://www.tollesburysc.co.uk/Knots/Sheepshank.htm Animation of tying a sheepshank knot] | *[http://www.tollesburysc.co.uk/Knots/Sheepshank.htm Animation of tying a sheepshank knot] | ||
==References== | == References == | ||
*Project Gutenberg (September 21, 2004). [http://www.gutenberg.org/files/13510/13510-h/13510-h.htm The Project Gutenberg eBook, Knots, Splices and Rope Work, by A. Hyatt Verrill]. Retrieved November 6, 2005. | *Project Gutenberg (September 21, 2004). [http://www.gutenberg.org/files/13510/13510-h/13510-h.htm The Project Gutenberg eBook, Knots, Splices and Rope Work, by A. Hyatt Verrill]. Retrieved November 6, 2005. Though the name's a little different, the Sheepshank described above is shown in Figure 79. | ||
*Chiang Kai Shek College (September 13, 2005). [http://cksc.edu.ph/scoutcenter/tutorial/basicknots_files/frame.htm Basic Knots]. Retrieved November 6, 2005. | *Chiang Kai Shek College (September 13, 2005). [http://cksc.edu.ph/scoutcenter/tutorial/basicknots_files/frame.htm Basic Knots]. Retrieved November 6, 2005. Section 9 has an animation of the Sheepshank being tied that demonstrates that the ends need not be accessible. | ||
*Scouting Resources. [http://www.scoutingresources.org.uk/downloads/knots_sheepshank.pdf Sheepshank]. Retreived December 11, 2006. Shows diagrams with accompanying text. | *Scouting Resources. [http://www.scoutingresources.org.uk/downloads/knots_sheepshank.pdf Sheepshank]. Retreived December 11, 2006. Shows diagrams with accompanying text. | ||
