Cat's Paw
Interlock
Does not pick a knot
This page does not pick a knot for you. DNA, molecules, quantum braids and vortices stay off Decide.
Two finished loops interlocked as a handshake — neither loop cinched around the other.
Finished structure
Two finished loops interlocked as a handshake — neither loop cinched around the other.
When this family fails, it fails as these. The recovered end still outranks the name.
A loop that either stands as a dropper or handshake onto another loop.
- !Dropper loop collapsed into an overhand
- !Handshake twisted so one loop saws the other
- !Loop sized after it was already loaded
- !The turns cross or stack on each other, so one turn carries most of the load instead of all of them sharing it
- !There is no double line behind the join, or the Bimini twist wraps have slipped
- !Too few passes were made, so the load sits on fewer turns where the loops bear on each other
- !One loop rides over the other, leaving a lopsided collar that catches on the rod tip guide
Fewer than five passes — a girth hitch
Load lands on one crossing and saws the loop apart
The paw spreads load across five nested turns. Two or three is a girth hitch, which loads a single bearing point. · step 02
Turns riding over each other instead of nesting
The advantage of spreading the load is lost
Nested turns share the load; stacked ones do not. · step 03
Built on a single strand rather than a double
The connection is limited by one strand of main line
The paw transfers load between loops; it does not create strength. · step 01
Collar lopsided, one loop riding over the other
Uneven bearing and a connection that snags at the tip guide
A symmetrical collar is what lets it pass a guide and load evenly. · step 04
The connection looks like a simple loop-through-loop with one crossing
Check
- ?Count the turns in the collar — you should see five
Then
- →Rebuild with five passes; a girth hitch concentrates load on one crossing
The turns sit on top of each other rather than side by side
Check
- ?Look along the collar for a turn riding over its neighbour
Then
- →Slack it off and re-cinch slowly
- →Retie if the turns will not nest
The main line enters the connection as a single strand
Check
- ?Trace the main line back — two strands should run into the collar
Then
- →Build a Bimini first; the paw is only as good as the double under it
Fewer than five passes — a girth hitch
Check
- ?Load lands on one crossing and saws the loop apart
- ?Inspect step 02
Then
- →Retie. Do not dress a defective structure and call it seated.
Turns riding over each other instead of nesting
Check
- ?The advantage of spreading the load is lost
- ?Inspect step 03
Then
- →Retie. Do not dress a defective structure and call it seated.
Built on a single strand rather than a double
Check
- ?The connection is limited by one strand of main line
- ?Inspect step 01
Then
- →Retie. Do not dress a defective structure and call it seated.
Same failure class, different geometry. Open the plates — Diagnose still starts from the symptom.
What holds it
- ·A fixed loop is a standing eye. The collar or figure-eight body must survive a straight pull without becoming a noose.
- ·Bowline and sheet bend are the same crossing pattern under different load. That identity is seamanship, not a reason for Decide to swap one for the other.
What topology does not predict
- ·Fixed vs slipped is a load-path question. Invariants do not choose bowline over figure-eight.
- ·Ring-loading and slack-shaking failure are physical. Topology does not grade them.
- ·No UIAA or manufacturer number is inferred here.
Not for
- ·A lure that must swing on a non-slip loop — this standing eye is a different job
- ·Letting a climbing identity pick your fishing knot
- ·Single-strand main line with no double built first
- ·Light tackle where the doubled loop is bulkier than the job needs
Same pattern, different job
No sourced twin among these knots. Related knots stay on the Library card.
- Bowline — seamanship identity with the sheet bend (Wikipedia) — Standard identity: bowline is the sheet-bend tangle with the loop loaded.
- Knot — practical vs mathematical (Wikipedia) — Closed-curve knot theory ignores friction. Practical knots are classified by function.
- Patil et al. — Topological mechanics of knots and tangles (Science, 2020) — Lab rods: simple topological counts correlate with stability. Not a field rating table.
- Salt Water Sportsman — PR Bobbin and Cat's Paw
- Pescatarian Fishing — Swordfish 101: How To Attach A Wind On Leader (Cats Paw) — Cited tying video already attached to this record.