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SECURE SCREEN

Secure Screen is a retractable garage door screen which can also be adapted to many other uses such as porches, barns and many commercial applications.

Click here for more information

 
SPLICING

Splicing Instructions

Rope splicing is a very strong method of fixing a loop eye or joining two ends together; as the rope is pulled tighter, the spliced strands become more and more squeezed and locked into place.

Splicing Index

 

MANILA ROPE

Add that decorative touch to your house, deck or yard with Manila 3-strand rope.

Click HERE for more information.

 



Handling and Care of Rope

Manmade fibers, as well as being much stronger than natural fibers, are very tolerant of those factors that reduced the working life of the latter. For example, synthetic lines can be stored while still damp and they won't rot (although you may see mildew on them). Physical damage must be guaranteed against (as with natural fibers); you should particularly bear in mind that rope under tension is easily damaged by chafe. Lines that are under tension but static (e.g., mooring lines) should be protected at any angular point or rough service by placing plastic tubing over the rope or parcelling it with canvas.

The effects of chafe from normal friction surfaces such as sheaves, fairleads, and cleats is considerably reduced if the bearing surfaces are large. In the case of sheaves, the diameter should not be less than five times the diameter of the rope - and preferably more. The groove of a sheave should have such a radius that it supports one-third of the rope's circumference. Whenever possible, avoid making sharp "nips" in a rope. If, however, you have to lead a line through a sharp angle, the bearing surface of the lead should be smooth and at least that required of a sheave. Rope can be severely damaged if led through a thin shackle or eye bolt, particularly if the angle is sharp.

If possible, always avoid heavy shock loads. For example, when passing a towline between a stationary vessel and a moving one, never make both ends fast at once. The resulting jerk imposes a tremendous strain on the line which, if it does not damage it, may rip a cleat or bollard out. When one end has been made fast, the correct procedure at the other end is to make a figure-eight turn around the cleat or bitts, and allow the line to ease out smoothly as the load comes on. Then, check steadily and make fast as the vessel gathers way.

Riding turn on a winch must be avoidedRiding turns on a winch, must be avoided. They are caused by a line wrongly lead or tailed. Often they can only be undone by using another winch and a rolling hitch to take the strain off the line.

 

Securing a coilSecuring a coil.

When coiling a line, always begin at the end that is made fast so that and twists or kinks can be chased along and run out at the far end. It is particularly important to ensure that load is never applied to a line when there is a kink in it; doing so will almost inevitably damage and weaken it. Rope that has been badly overloaded in any way may be identified by being usually hard in parts. The hardness is caused by the heat that is produced by the overload friction that fuses some of the filaments together.

Unless lines are properly coiled, kinks will occur - with subsequent snags - when the line is run out. Nearly all laid ropes are right-handed and should be coiled clockwise to ensure smooth running out.

To make sure that your ropes wear evenly, it's a good idea to change them end for end occasionally.

The life of a rope can be extended considerably by washing it in fresh water to get rid of salt crystal, grit, and dirt. Use only soap powder - not detergent - to wash rope.


INTENDED USE

Many products are designed for a specific purpose.  When a use is specified on the product, use the rope for its intended application.  This will add life to the product and reduce the possibility of a product failure.

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AVOID OVERLOADING

Safe working strength for rope varies from 5:1 to 12:1 or higher.  For example, a rope rated at 10,000 pounds minimum breaking strength may be loaded to 2,000 pounds at a 5:1 safe working load and at 833 pounds at a 12:1 safe working load.  Ignoring safe working loads can cause personal injury, damage to property or even death.  If your rope is old or worn, make allowances for safety.  Downgrade rope to a less critical application or discard and replace.

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AVOID ABRASION

Outer and inner rope fibers contribute equally to the strength of your rope.  When worn, your rope is naturally weakened.  Where it is necessary for a rope to rub over and object, protect it with chafing gear, such as canvas wrapped and tied around the rope.

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AVOID SUDDEN STRAIN

Rope that is strong enough under a steady strain can be broken with a sudde3n jerk.  Avoid shock loads whenever possible.

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AVOID KINKS

When rope is repeatedly turned or twisted in one direction, it is certain that kinks will develop, unless twists are repeatedly thrown in, or out of rope.  Pulling a kink through a restricted space such as a tackle block will seriously damage the rope fibers.

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AVOID SHARP ANGLES

Sharp bends greatly affect the strength of a rope.  Any sharp angle is a weak spot.  Pad it for safety, and even then, be careful!

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AVOID WRONG REEVING

Always use the right size rope for the sheaves in block or pulleys.  Too small a sheaves diameter can cause added friction and rope wear.

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REVERSE ENDS

Prolonged use, or wear, on one part of a rope will naturally decrease its effectiveness at that point.  Occasionally reverse your rope, end-for-end, to distribute the wear more evenly.  A good example is an anchor line aboard a boat.

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AVOID CHEMICALS

Virtually all synthetic fiber ropes are immune to damage from oil, gasoline, paint and most chemicals.  To be on the safe side, however, keep your   rope free of any type chemical.  Natural fiber ropes are, of course, severely damaged by exposure to chemicals.

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KEEP ROPE CLEAN

Dirt on the surface and embedded in rope acts as an abrasive on fibers.  When rope becomes dirty, wash it thoroughly with clean water.  Be sure to air-dry natural fiber ropes before storing.

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AVOID IMPROPER STORAGE

Synthetic fiber ropes require no special storing conditions other than keeping them out of sunlight and out of extremely hot rooms.  The ultra-violet rays of sunlight have a weakening effect on rope that is exposed for prolonged periods of time.  Natural fiber ropes must be kept dry or they will rot in a very short time.

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