MATERIALS OF ROPE
1) Natural fibre: Hemp, Manila, Sisal, Cotton
2) Synthetic fibre: Nylon, Polyester, Polypropylene
3) Metal wires
TYPES OF ROPES
1) Laid rope (Examples: Manila hemp)
2) Braided rope (Examples: Static climbing rope)
TYPES OF COILING
Purpose: For easier storage of ropes
1) Simple coiling
2) Old Navy Coil
WHIPPING
Purpose: To prevent end of rope from fraying
1) Simple whipping
2) West country whipping
3) Flame whipping
COMMON TERMS USED IN ROPE USAGE
1) Working end: End of rope used to tie a knot
2) Standing end: Other end of rope that is inactive
3) Loop: Rope formed into circle
- If working end over standing end, then it is an overhand loop.
- If standing end over working end, then it is an underhand loop.
4) Bight: Enclosed area formed by a loop
5) Turn: Rope that passes around only one side of an object
6) Round turn: Rope that completes one and a half circles around object
KNOTS
1) Stopper knots
- Purpose: To stop end of rope from fraying and to form hand grip etc
- Examples: 1) Thumb knot (Overhand knot) 2) Figure-of-8 knot
2) Bends
- Purpose: To join ropes together
- Examples: 1) Reef knot (rope of same thickness) 2) Fisherman knot (for slippery knots) 3) Sheet bend (rope of unequal thickness)
3) Loop Knots
- Purpose: To form a loop
- Examples: 1) Bowline 2) Manharness 3) Fireman's Chair 4) Tent guy loop
4) Hitches
- Purpose: To secure rope on poles
- Examples: 1) Clove hitch 2) Rolling hitch 3) Timber hitch 4) Round turn two half hitches 5) Highwayman's hitch 6) Marlinspike
5) Shortening Formation
- Purpose: To shorten ropes
- Examples: 1) Chain knot 2) Sheepshank
LASHES
1) Round lash: Tie two poles parallel to each other
2) Square lash: Tie two poles perpendicular to each other
3) Shear lash: Form a shear leg
4) Diagonal lash: Tie two poles at an angle to each other
5) Gyn lash: Tie three poles to each other to form a tripod
SPLICING
Purpose: For permanent joining of ropes
1) Back splicing
2) Short splicing
3) Eye splicing
