In examinations of knots as rope mechanix, generally in a fixed/static state;
but still rope mechanix.
We have dynamic /moving knots of Muenter, Prussic, Poldo, Fiction Hitches, Parbuckle etc.
whose forces can be used statically against loading, but usual highlights are the ropes in motion.
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https://upload.wikimedia.org/wikipedia/commons/0/04/Parbuckle.png
Especially Parbuckle, that may not even tie any single known complete knot
just use the rope in a certain geometry to extrude the desired effects
Parbuckle can give a 2x1 multiplier hanging or further multiplier of ramp
or back to 2x1 on flat ground
hanging is constant 2/1>>but flat surface can be just needed to get, then keep going, keep just enough light tension
as separate consideration
https://merriam-webster.com/assets/mw/static/art/dict/parbuckl.gif
As any contact to ramp or flat ground (not hanging) also shows this is not 2x1 x ramp advantage dragging
we are ROLLING a log etc., and coming up over the edge of a trailer, the spar texture can even be as a gear wheel!
system autonomously presses the log texture into this mating
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Parbuckling is a verb. They use it for lifting and delivering spars (and corpses) to water, also for rolling massive ships upright against ramp of sea bed (or make one from) when can w/o crushing pressures(need to cradle).
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i also found when using truck as the pulling force, rather have the bight on the input, not anchor as pivot
if have bight around anchor as typical shown and pull ends/tie to truck
they don’t pull as clean and even, have to go around and under massive log to self adjust to pull and deliver even
else can get slanted to side and lose on ramps
bight thru tow hooks or even around ball hitch if must
is more immediately self adjusting
would pull across trailer 90 degrees with truck on far side from ramps
fill a layer, anchor down rope over logs on truck side
swap sides for ramps and truck and fill next layer from opposite direction
rinse and repeat
Sorry one of my 90’s drawings drawings from my msPaint era
https://upload.wikimedia.org/wikipedia/commons/a/a7/Parbuckle_loading.jpg
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But, unless was told specifically the unknotted line in pic was a knot
would assume is just a mechanical usage of rope, not a knot , especially static as usually implied.
This is how work gets done!
https://forestryforum.com/gallery/albums/userpics/12054/Red_Oak_121~0.jpg
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1943 Righting the USS Oklahoma from the depths after Pearl Harbor with parbuckling.