Difference between revisions of "AY Honors/Knot/Carrick bend"

From Pathfinder Wiki
 
(29 intermediate revisions by the same user not shown)
Line 1: Line 1:
[[Image:CarricksBend Final.jpg|thumb|right|Carrick bend]]  
+
{{Knot-details
[[Image:CarricksBend HowTo.jpg|thumb|right|Carrick bend step by step]]
+
| image=Carrick-bend-Guten-Verrill-modified.png
 +
| name=Carrick bend
 +
| names=Double Carrick Bend, Double Coin Knot, Ten Accord Knot, Josephine Knot, Bosun's Knot, Basketweave Knot, Chinese Knot, Napoleon Knot, Boatswain's Lanyard, Whistle Lanyard, Josephine Knot, Sailor's Breastplate Knot, Pretzel Knot
 +
| type=
 +
| related=[[Single carrick bend]]
 +
| abok_number=#1428, '''#1439'''
 +
}}
 +
The '''Carrick bend''' is a [[knot]] used for joining two lines.  It is particularly appropriate for very heavy rope or cable that is too large and stiff to easily be formed into other common bends.<ref name="budcomp">Geoffrey Budworth, ''The Complete Book of Knots'' (London: Octopus, 1997), 43.</ref><ref name="tossguide">Brion Toss, ''Chapman's Nautical Guides: Knots'' (New York: Hearst Marine Books, 1990), 79-80.</ref>  It will not jam even after carrying a significant load or being soaked with water.<ref name="ashley262">Clifford W. Ashley, ''The Ashley Book of Knots'' (New York: Doubleday, 1944), 262-263.</ref>  The Carrick bend's aesthetically pleasing interwoven and symmetrical shape has also made it popular for decorative purposes.
  
 +
== Etymology ==
  
'''Canonical name''': Carrick bend or Double carrick bend<br> (also: Double Coin Knot; Ten Accord Knot; Josephine Knot; Bosun's Knot; Basketweave Knot; Chinese Knot; Napoleon Knot; Boatswain's Lanyard; Whistle Lanyard; Josephine Knot; Sailor's Breastplate Knot; Pretzel Knot )
+
This knot's name dates back to at least [[1783]] when it was used by M. Lescallier in ''Vocabulaire des Termes de Marine''.<ref name="budcomp"/>  Its origins prior to that are not known with certainty.  There are several possible explanations for the name "Carrick" being associated with this bend.  The [[Elizabethan era]] plasterwork of [[Ormonde Castle]] in [[Carricky-on-Suir]] shows numerous Carrick bends molded in relief.  Or the name may come from [[Carrick Roads]] — a large natural [[Harbor|anchorage]] by [[Falmouth, Cornwall|Falmouth]] in [[Cornwall]], [[England]].  The name may also have been derived from the [[Carrack]], a medieval type of ship.<ref name="budult">Geoffrey Budworth, ''The Ultimate Encyclopedia of Knots'' (London: Hermes House, 1999), 60.</ref>
  
'''Category''': [[bend]]<br>
+
== Variations ==
'''Efficiency''': Unknown %<br>
+
[[Image:CarricksBend HowTo.jpg|thumb|right|Fully interwoven diagonally opposed Carrick bend]]
 +
[[Image:CarricksBend Final.jpg|thumb|right|Capsized Carrick bend]]  
 +
The eight crossings within the Carrick bend allow for many similar looking knots to be made.  The lines in a "full" or "true" Carrick bend alternate between over and under at ''every crossing''.  There are also two ways the ends can emerge from the knot: diagonally opposed or from the same side.  The form with the ends emerging diagonally opposed is considered more secure.<ref name="budcomp"/>
  
== Origin ==
+
Unfortunately, with so many [[permutations]], the Carrick bend is prone to being tied incorrectly.<ref name="ashley262"/>
Ancient. The name comes from Carrick Roads - a large natural anchorage by Falmouth in Cornwall, England. Carrick is also a local government district in Cornwall and the knot is the emblem of Carrick District Council.  'Carrick bend' can also refer to the [[single carrick bend]].
 
  
The name is also said to have been derived from the [[Carrack]], a medieval type of ship.
+
===Capsized===
 +
The Carrick bend is generally tied in a flat interwoven form and without additional measures it will [[Knot#Security|capsize]] (collapse) under load into a stable but bulky form.  This capsized form is more convenient to make, but is likely to be more difficult to untie than when seized.
  
== Uses ==
+
===Seized===
Securing two lines, particularly heavy ropes or for decorative purposes.
+
[[Image:Carrick-bend-seized-ABOK-1439.jpg|thumb|Seized Carrick Bend, Round seizing on left, multiple tight double constrictor knots on right.]]
It can be tied in rope that is too stiff or large for many other common bends.
+
In the interest of making the Carrick bend easier to untie, especially when tied in extremely large rope, the ends may be seized to prevent the knot from collapsing when load is applied.  This practice also keeps the knot's profile flatter and can ease its passage over [[Capstan (nautical)|capstans]] or [[Winch|winches]].<ref name="pawpock">Des Pawson, ''Pocket Guide to Knots & Splices'' (Edison, NJ: Chartwell Books, Inc., 2002), 114-115.</ref>
  
== Tying ==
+
The ends are traditionally seized to their standing part using a [[Round seizing]].  For expediency, a series of [[Double constrictor knot|double constrictor knots]], drawn very tight, may also be used.<ref name="tossguide"/>  When seizing the Carrick bend, ''both'' ends must be secured to their standing parts or the bend will slip.
[[Image:Double coin knot.jpg|thumb|This decorative knot has the same [[topology]] as the carrick bend above, as can be seen by tracing the paths of the outermost blue and red lines.]]
 
See article/pictures.
 
  
Considered to be one of the most secure bends. Will not jam (i.e. can be untied easily) even after carrying a significant load and/or getting wet.
+
==Decorative uses==
 +
[[Image:Double coin knot-rotated.jpg|thumb|Decorative form made with doubled lines]]
 +
In the decorative variation, both standing ends enter from one side and both working ends exit from the other.  In this configuration the knot is known as the ''Josephine knot'' ([[macrame]]) or ''double coin knot'' ([[Chinese knotting]]).  This form of the Carrick bend is found depicted in [[heraldry]], sometimes with the tails of [[Charge (heraldry)|heraldic serpents]] woven (or "nowed") into this knot.<ref name="histsci">J.C. Turner and P. van de Griend (ed.), ''The History and Science of Knots'' (Singapore: World Scientific, 1996), 388.</ref>
  
Unless the two free ends are lashed (seized) to the two standing parts, the knot will collapse ([[Knot#Security|capsize]]) into a different shape under load, which does not reduce its strength in any way. It is very important when lashing, that ''both'' ends are lashed, or else the bend will slip.
+
The knot can be tied using doubled lines for an even flatter, more elaborate appearance.
  
In the decorative version, both standing ends enter from the top and
+
==Security==
both working ends exit from the bottom, with the knot being flattened
+
 
out (though the [[topology]] remains unchanged). In this configuration
+
The fully interwoven diagonal Carrick bend is the most secure variation.  All other forms are inferior<ref name="ashley262"/> and not recommended as bends.<ref name="budcomp"/> Given the possibility of tying the Carrick bend incorrectly, it is important to carefully check the knot each time it is tied.
the knot is known as the ''Josephine knot'' ([[macrame]]) or
+
 
''double coin knot'' ([[Chinese knotting]]). It is often tied in double lines for a flatter, more elaborate appearance.
+
Although the Carrick bend has a reputation for strength, some tests have shown it to be as weak as 65% [[Knot#Strength|efficiency]].<ref name="budcomp"/>
  
 
==See also==
 
==See also==
Line 37: Line 47:
  
 
==References==
 
==References==
* [[The Ashley Book of Knots]] discusses this knot in the entry for drawing #1439
+
<references/>
 +
[http://knottyingvideo.com Why Knot? an introduction to knots,splices & rope] DVD [http://www.amazon.com/Knot-Tying-DVD-introduction-language/dp/B000H2NH3S/sr=8-2/qid=1163342224/ref=sr_1_2/104-3813177-7199908?ie=UTF8&s=dvd UPC 811294000351]
  
 
==External links==
 
==External links==
 
* [http://www.animatedknots.com/carrick/ Grog's Animated Knots: How to tie the carrick bend]
 
* [http://www.animatedknots.com/carrick/ Grog's Animated Knots: How to tie the carrick bend]
  
 
+
[[Category:Bend knots]]
[[Category:Knots]]
 
 
 
  
 
[[de:Trossenstek]]
 
[[de:Trossenstek]]

Revision as of 00:55, 13 November 2006

Template:Knot-details The Carrick bend is a knot used for joining two lines. It is particularly appropriate for very heavy rope or cable that is too large and stiff to easily be formed into other common bends.&& It will not jam even after carrying a significant load or being soaked with water.& The Carrick bend's aesthetically pleasing interwoven and symmetrical shape has also made it popular for decorative purposes.

Etymology

This knot's name dates back to at least 1783 when it was used by M. Lescallier in Vocabulaire des Termes de Marine.& Its origins prior to that are not known with certainty. There are several possible explanations for the name "Carrick" being associated with this bend. The Elizabethan era plasterwork of Ormonde Castle in Carricky-on-Suir shows numerous Carrick bends molded in relief. Or the name may come from Carrick Roads — a large natural anchorage by Falmouth in Cornwall, England. The name may also have been derived from the Carrack, a medieval type of ship.&

Variations

Fully interwoven diagonally opposed Carrick bend
Capsized Carrick bend

The eight crossings within the Carrick bend allow for many similar looking knots to be made. The lines in a "full" or "true" Carrick bend alternate between over and under at every crossing. There are also two ways the ends can emerge from the knot: diagonally opposed or from the same side. The form with the ends emerging diagonally opposed is considered more secure.&

Unfortunately, with so many permutations, the Carrick bend is prone to being tied incorrectly.&

Capsized

The Carrick bend is generally tied in a flat interwoven form and without additional measures it will capsize (collapse) under load into a stable but bulky form. This capsized form is more convenient to make, but is likely to be more difficult to untie than when seized.

Seized

Seized Carrick Bend, Round seizing on left, multiple tight double constrictor knots on right.

In the interest of making the Carrick bend easier to untie, especially when tied in extremely large rope, the ends may be seized to prevent the knot from collapsing when load is applied. This practice also keeps the knot's profile flatter and can ease its passage over capstans or winches.&

The ends are traditionally seized to their standing part using a Round seizing. For expediency, a series of double constrictor knots, drawn very tight, may also be used.& When seizing the Carrick bend, both ends must be secured to their standing parts or the bend will slip.

Decorative uses

Decorative form made with doubled lines

In the decorative variation, both standing ends enter from one side and both working ends exit from the other. In this configuration the knot is known as the Josephine knot (macrame) or double coin knot (Chinese knotting). This form of the Carrick bend is found depicted in heraldry, sometimes with the tails of heraldic serpents woven (or "nowed") into this knot.&

The knot can be tied using doubled lines for an even flatter, more elaborate appearance.

Security

The fully interwoven diagonal Carrick bend is the most secure variation. All other forms are inferior& and not recommended as bends.& Given the possibility of tying the Carrick bend incorrectly, it is important to carefully check the knot each time it is tied.

Although the Carrick bend has a reputation for strength, some tests have shown it to be as weak as 65% efficiency.&

See also

References

  1. 1.0 1.1 1.2 1.3 1.4 Geoffrey Budworth, The Complete Book of Knots (London: Octopus, 1997), 43.
  2. 2.0 2.1 Brion Toss, Chapman's Nautical Guides: Knots (New York: Hearst Marine Books, 1990), 79-80.
  3. 3.0 3.1 3.2 Clifford W. Ashley, The Ashley Book of Knots (New York: Doubleday, 1944), 262-263.
  4. Geoffrey Budworth, The Ultimate Encyclopedia of Knots (London: Hermes House, 1999), 60.
  5. Des Pawson, Pocket Guide to Knots & Splices (Edison, NJ: Chartwell Books, Inc., 2002), 114-115.
  6. J.C. Turner and P. van de Griend (ed.), The History and Science of Knots (Singapore: World Scientific, 1996), 388.

Why Knot? an introduction to knots,splices & rope DVD UPC 811294000351

External links

de:Trossenstek