Project 2 : Original Carabiner(safety matal hook)
A carabiner or karabiner is a metal loop with a sprung gate
used to quickly and reversibly connect components in safety-critical systems.
The word is a shortened form of "Karabinerhaken",
German for "spring hook for a carbine".
Use
Carabiners are widely used in rope-intensive activities
such as climbing, caving, sailing, rope rescue,
construction, industrial rope work, and window cleaning.
They are made from both steel and aluminium.
Those used in sports tend to be of a lighter weight than
those used in commercial applications and rope rescue.
Shape
D: Asymmetric shape transfers the majority of their load onto the spine,
the carabiner's strongest axis. Slightly more expensive.
Gate types
Straight gate: The most utilitarian, and hence most popular.
Non-locking
Non-locking carabiners have a sprung swinging gate
that accepts a rope, webbing sling, or other hardware.
Rock climbers frequently connect two non-locking carabiners
with a short length of nylon web to create a quickdraw.
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