I've read loads of Preppers' and Survivalists' glossaries and found
that most (not all) of them are direct copies of others on the internet,
without a thought for a better definition. What I've tried to do
here is take the best out of them, simplify the explanations, remove
the dross and add things that I believe are essential. If you
think that something should be added or better explained then please
email me at
mal@survival_supplies.co.uk .
Abrasion Resistance |
The degree to which a fiber
or rope is able to withstand surface wear and rubbing due to motion against
other fibers (internal abrasion) or an external surface (external abrasion). |
Back Splice |
A method to finish off the
end of a rope by burying the end back into the center for braids or splicing
the strands back into the body of a twisted rope. |
Baler Twine |
Single ply twine, usually of
sisal or polypropylene, used by farmers for tying bales of hay. |
Bend |
A knot used to join two ends
or two separate ropes together. |
Bight |
A bight has two meanings in
knotting. It can mean either any central part of a rope (between the
standing end and the working end) or an arc in a rope that is at least as
wide as a semicircle. In either case, a bight is a length of rope that does
not cross itself. Knots that can be tied without use of the working end are
called knots on the bight. A knot tied on the bight will normally form a
Loop-Knot. |
Binding knot |
Binding knots are knots that
either constrict a single object or hold two objects snugly together.
Whippings, seizings and lashings serve a similar purpose to binding knots,
but contain too many wraps to be properly called a knot.[1] In binding
knots, the ends of rope are either joined together or tucked under the turns
of the knot. |
Bitter end |
In tying knots or splicing,
refers to the end opposite the end in use. Used to give mechanical advantage
when lifting or pulling heavy weights. |
Breaking Strength |
The measured load required to
break a rope in tension; also called tensile strength. |
Chirality |
Chirality is the 'handedness'
of a knot. Topologically speaking, a knot and its mirror image may or may
not have knot equivalence. |
Composite Rope |
A combination of
polypropylene/polyester or other combinations of fiber types. |
Cordage |
String, line, rope, twisted
or braided, generally refers to small sizes one inch diameter and under. |
Crossing
Point |
A crossing point is where the
rope crosses itself, this will happen if we take a bight of rope and twist
it to form a loop. |
Dacron® |
DuPont trademark for
polyester. |
Decorative knot |
A decorative knot is any
aesthetically pleasing knot. Although it is not necessarily the case, most
decorative knots also have practical applications or were derived from other
well-known knots. Decorative knotting is one of the oldest and most widely
distributed folk art. |
Dressing |
Knot dressing is the process
of arranging a knot in such a way as to improve its performance. Crossing or
uncrossing the rope in a specific way, depending on the knot, can increase
the knot's strength as well as reduce its jamming potential. |
Diamond Braid |
Cordage construction with 8, 12 or 16 strands of fibers braided under and
over each other in a circular direction. The center of the rope may be
hollow, such as in a hollow braid, allowing for easy splicing; or it may
have a center rope of parallel fibers. It is generally stronger than solid
braid, but not as strong as twisted or braid on braid cordage. |
Double Braid |
Cordage construction with a
jacket braided over a braided rope core; two ropes in one. A very strong and
flexible rope that doesn't hockle, kink or rotate under a load. It is
spliceable; also called braid on braid, double spliceable braid and yacht
braid. |
Dress |
Partially closing the knot by
drawing up the knot to make sure the knot is tied correctly. |
Eight Strand |
A plaited (or braided)
construction of eight strands; usually found in large sizes for mooring,
shipping and towing uses. Exhibits no torque in heavy towing. Made of
various fibers. |
Elbow |
An elbow refers to any two
nearby crossings of a rope. An elbow is created when an additional twist is
made in a loop. |
Eye |
The 'eye' is in fact what is
often (in error) referred to as a 'loop'. The 'eye' functions in the same
way as an 'eye bolt' or an 'eye splice'. The 'eye' provides a means to form
connections. Note that the 'eye of a knot (or a splice) is fixed and does
not slip. If it slipped, it would not function as an eye - it would act like
a 'noose'. |
Fid |
A tapering pin used to open
the strands of a rope prior to splicing. It is sometimes hollow. |
Flake |
A flake refers to any number
of turns in a coiled rope. Likewise, to flake a rope means to coil it.
"Flaking" or "Faking" also means to lay a rope on a surface ready to use or
to run out quickly without tangles |
Fraps |
Fraps or "frapping turns" are
a set of loops coiled perpendicularly around the wraps of a lashing as a
means of tightening. |
Friction hitch |
A friction hitch is a knot
that attaches one rope to another in a way that allows the knot's position
to easily be adjusted. Sometimes friction hitches are called slide-and-grip
knots. They are often used in climbing applications. |
Guy Ropes |
Lines used for steadying,
guiding or holding something. |
Hank |
A looped bundle of cordage. A
means of packaging rope or cords by winding it into a series of loops and
tying them about the center. |
Hemp |
The fibers of a tall plant,
the cannabis sativa, grown in Asia; also called "marijuana" or "Indian
hemp". It may also refer to a fiber similar to true hemp such as manila. |
Hitch |
A knot that attaches a rope
to something, like a spar, a post or another rope. |
Hockle |
A back turn; a twist against
the lay that cannot be corrected. Damage that occurs to a rope when a load
is suddenly released on the line or when a rope is twisted and the strands
form a loop. A line may look like it has knots along its length. This type
of damage results in substantial loss of strength which cannot be repaired.
It can lessen the tensile strength by as much as 50%. Braided or plaited
rope cannot hockle. |
Hollow Braid |
An easily spliced cord of a
diamond braid construction; most common in nylon or polypropylene - for
example, water ski tow rope. |
Jamming |
A jamming knot is any knot
that becomes very difficult to untie after use.[13] Knots that are resistant
to jamming are called non-jamming knots. |
Jute |
A natural fiber obtained from
either two Asian plants, Corchorus Capsulans of Corchorus Olitorius; used in
sacking and cordage. |
Laid Up |
Twisted. |
Lariat |
A specially constructed rope
with a running noose for catching livestock; a lasso. Also a rope used for
picketing grazing horses or mules. |
Lashing |
A lashing is an arrangement
of rope used to secure two or more items together in a rigid manner. Common
uses include the joining of scaffolding poles and the securing of sailing
masts. The square lashing, diagonal lashing, and shear lashing are
well-known lashings used to bind poles perpendicularly, diagonally, and in
parallel, respectively. |
Loop |
A loop is one of the
fundamental structures used to tie knots. It is a full circle formed by
passing the working end of a rope over itself. When the legs of a closed
loop are crossed to form a loop, the rope has taken a turn. |
Loop knot |
A loop knot is a type of
knot that has a fixed 'eye'. Unlike a hitch, a loop knot creates a fixed eye
in a rope that maintains its structure regardless of whether or not it is
fastened to an object. In other words, the 'eye' can be removed from an
object without losing its shape. When visualizing the 'eye' of a knot -
think in terms of an 'eye bolt' or an 'eye splice'. An eye bolt is not a
loop bolt - it is properly referred to as an eye bolt. The same concept
applies to an eye splice. The bowline is a common loop knot. |
Noose |
A noose can refer to any
sliding loop in which the loop tightens when pulled. |
Open loop |
An open loop is a curve in a
rope that resembles a semicircle in which the legs are not touching or
crossed. The legs of an open loop are brought together narrower than they
are in a bight. |
Lay |
To piece together strands to
be twisted into rope. |
Lashing |
An arrangement of rope used
to secure two or more items together in a rigid manner. |
Line |
A piece of rope, either
fiber or wire, which is in use or has been cut for a specific purpose, such
as lifeline, heaving line or lead line. |
Lofted |
A cordage material is lofted
if it is made to yield more feet and diameter per pound by crimping the
fibers and/or loosening the twist or weave to give more bulk per unit of
weight. |
Long Splice |
A method for joining end to
end a three stranded rope without increasing the diameter of the rope. Not
as strong as a short splice, but essential in splicing rope that must be
used in a pulley where rope diameter cannot be changed. |
Loop |
Also called a turn; a circle
of rope in which the rope crosses over itself, i.e. the end is placed over
the standing part. |
Marline |
A cord used for winding
around the ends of ropes to prevent fraying. |
Marlinspike |
A pointed spike used to
separate strands of rope in splicing. |
Mason Line |
A utility cord used for
alignment in construction and other uses. |
Modulus |
The ratio of change in
stress to change in strain following the removal of crimp from the material
being tested; i.e., the ratio of the stress expressed in either force per
unit linear density or force per unit area of the original specimen, and the
strain expressed as either a fraction of the original length or percentage
elongation. |
Monkey Fist |
Weighted knot in the end of
a heaving line. Usually made up of 2 or 3 ounces of lead wrapped up in a
rag. |
Monofilament |
Polypropylene or polyethylene
extruded in relatively large round fibers of large denier as compared with
the fine fibers of multifilament; usually extruded by the rope manufacturer. |
Natural Fiber |
Any organic fiber such as
cotton, jute, manila, sisal, etc. |
Noose |
A loop that closes under
strain. |
Overhand
Loop |
Depending on which direction
you twist a bight to form a loop, you will either end up with an overhand
loop or an underhand loop. An overhand loop is created when the working end
of the rope lies over the top of the standing part. |
Plaited |
Braided; generally refers to
8-strand large diameter rope in either a square or round braided
construction. |
Ply |
One of the strands twisted
together to make yarn, rope or thread or twine. Used in combination to
indicate a specific number of strands (for instance 2-ply). |
Polyester |
A synthetic fiber used for
its strength and resistance to ultraviolet deterioration. It does not have
the stretch and elasticity of nylon and, as a result, will often last
longer. |
Polyethylene |
A floating polyolefin fiber
similar to polypropylene, but a little heavier and not quite as strong. |
Polypropylene |
A light weight, strong rope
with many uses. It is waterproof, resistant to rot, and floats. For most
rope requirements, it is the most economical rope to buy. |
Rope |
Cordage; generally refers to
cordage over 1" circumference (about the size of a pencil). It may be
twisted or braided, of natural or synthetic fibers or wire. |
Round turn |
To make a roundturn,
wrap the rope completely around a spar and bring the running end back along
the standing part of the rope. A roundturn gives you even more grip in
holding the strain on a line and is the basis for tying several knots, as
when making a roundturn with two half hitches. |
S-Twist |
A left-handed twist; a twist
that would be laid out by turning the yarn or rope in a counterclockwise
direction. |
Seine Twine |
A small diameter twine either
braided or twisted most commonly of nylon; used in making fish nets, net
repairs, fishing line, chalk line, duck decoy, anchor lines and many other
utility uses. |
Seize |
To lash or bind ropes
together. |
Seizing |
A seizing is a knot that
binds two pieces of rope together side by side, normally in order to create
a loop. The structure of seizings is similar to that of lashings. |
Set |
To close or tighten a knot. |
Setting |
Setting a knot is the
process of tightening it. Improper setting can cause certain knots to
underperform. |
Shank |
A type of knot that is used to shorten a rope or take
up slack, such as the sheepshank. |
Short Splice |
Method for joining rope, end
to end, when maximum strength is desired when an increase in diameter is
acceptable and/or when only a small amount of rope can be spared for making
a splice. |
Shock Cord |
An elastic cord used for tie
down purposes, snubbing gear, etc. Made of elastic rubber core with a
braided synthetic fiber jacket. |
Slipped knot |
A slipped knot is any knot
that unties when an end is pulled. Thus, tying the slipped form of a knot
makes it easier to untie, especially when the knot is prone to jamming. |
Sisal |
The fiber of the Agave
Sisalana used for making cordage and rope. May also refer to the Henequin or
Agave Fourcroydes, a plant native to Yucatan, Mexico. |
Skein |
A continuous length of yarn
or cord of any desired length, in the form of a collapsible coil. |
Solid Braid |
A construction of 9, 12 or 18
strands of fiber, lock-stitched together. It has a smooth, round, firm
contour which holds its shape well under pressure and load. It is excellent
in pulleys and winches and whenever a firm round rope is needed. It is not
as strong as other braids nor is it as spliceable. |
Splice |
To join two ropes by
inter-weaving strands or braids. |
Spring Lay |
A rope in which each strand
consists partly if wire and partly of fiber. It is composed of six main
strands laid around a fiber core. It will show fish hooks after it has been
stressed. |
Spun |
A fiber that has been
texturized by spinning before it is twisted into yarn, giving it a woolly
texture, similar to cotton. It is common in nylon, polyester and Dacron™. |
Standing End |
The standing end is the
opposite of the working or tag end of the rope. |
Standing
Part |
The main part of the rope not
in the knot itself, the rope not being tied is the standing part. |
Stopper Knot |
Used to stop the rope from
pulling through another knot, hole or pulley. |
Strand |
Yarns twisted together form
a strand. Strands twisted or plaited together form a rope. |
Tarred |
A coating of tar applied to
various fibers, ropes, manila, nylon, etc. to limit absorbency. |
Tensile
Strength |
The resistance of rope to a
force tending to break it; also called breaking strength, or the force that
must be applied to break a rope. |
Turn |
A turn
is one round of rope on a pin or cleat, or one round of a coil. |
Underhand
Loop |
If the standing part of the
rope lies over the top of the working end, then an underhand loop is formed.
An underhand loop is the opposite of the overhand loop. |
Webbing |
A sturdy
fabric woven in narrow widths for use where strength is required as for seat
belts, head bands, etc. |
Whipping |
A whipping is a binding knot
tied around the end of a rope to prevent the rope from unraveling. |
Working end |
The working end (or working
part) of a rope is the part active in knot tying. It is the part opposite of
the standing end. The working end is sometimes referred to as the tag
end. |
Yarn |
Long fibers or filaments
twisted together. |
Z-Twist |
Right handed twist; A twist
that would be laid out by turning the yarn or rope in a clockwise direction. |
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