Miller's knot

Miller's knot
ABoK #1241 around the neck of a paper bag
Names	Miller's knot, sack knot, bag knot
Category	Binding
Related	Ground-line hitch, constrictor knot, strangle knot, clove hitch
ABoK	#388, #389, #390, #1241, #1242, #1243, #1244

A miller's knot (also sack knot or bag knot) is a binding knot used to secure the opening of a sack or bag. Historically, large sacks often contained grains; thus the association of these knots with the miller's trade. Several knots are known interchangeably by these three names.^[1]

Tying

This is to tie a Constrictor knot version of the miller's knot:

Grip the neck of the bag with the left hand,
Fix / immobilize one end of the rope tucked upwards over the left hand long and under the index finger (option 1 : double folded as a bight to prepare a start-side-slip for the final knot)
Make two crossing turns around the neck of the bag. Detailed steps:
1. Cross over the hand downwards and take one turn around (front, then back) the neck of the bag at the sack side of the hand (under the hand)
2. Cross over the hand upwards as well as over the immobilized other end,
3. Take a second turn around the neck of the bag at the opening side of the hand (over the hand)
Cross over the immobilized other end of the rope, then cross back tucking under the crossing point of step 3.2 (of the immobilized other end, and the part between the two turns), (option 2 : this last tuck with a bight instead of the end as an end-side-slip for the final knot).

To tie the other variants:

If at this last step one chooses not to cross the immobilized other end and tuck only under the part between the two turns, the knot will be a Clove hitch.
If at this step one chooses to cross the immobilized other end and tuck only under the part between the two turns, the knot will be a ABoK #1242 or a ground-line hitch (ABoK #1243) pictured.
If at this step one chooses to cross over the crossing point, and then tuck outwards under the first turn, the knot will be a ABoK #1241 pictured.
If at this step one chooses to cross over the crossing point, and then tuck inwards under the first turn, the knot will be a ABoK #1674 pictured.

Tying other knots that also may function very well as a bag knot:

Strangle knot
1. Grip the neck of the bag with the left hand,
2. Fix / immobilize one end of the rope tucked upwards over the left hand long and under the index finger (option 1 : double folded as a bight to prepare a start-side-slip for the final knot)
3. Make two parallel turns around the neck of the bag. Detailed steps:
  1. Cross over the hand downwards and take one turn around (front, then back) the neck of the bag first at the sack side of the hand (under the hand), then over the hand and behind the immobilized other end.
  2. Take another turn crossing over the immobilized other end, crossing downwards over the hand around (front, then back) the neck of the bag parallel to the first turn
4. Cross over the immobilized other end of the rope, then cross back tucking under both turns, (option 2 : this last tuck with a bight instead of the end as an end-side-slip for the final knot).
Bottle sling

Start with an Overhand knot pulled to a Slip knot
The end side of the slip is folded into a loop with end side up
The resulting loop is folded under and the slip side of the Overhand knot pulled through the loop
The remaining slip is passed ove the loop and under the bight pulled through the loop
The hole in the middle ready to be slipped over the swirled and double folded bag mouth, and to be tightened

Variations

A slipped Constrictor knot where the ends are passed through the opposing slips for security is quite secure as a bag knot. Unslipped, it is even more secure, but it may have to be cut to open the bag.

A slipped Strangle knot where the ends are passed through the opposing slips for security is also quite secure as a bag knot.

A Bottle sling around a swirled and folded neck of the bag is also a very solid and reliable bag knot.

As noted above, several other distinct knots have historically been known as miller's, sack, or bag knots. The common aspects of these are two crossing turns, and both ends tucked under a turn near the crossing point. To avoid ambiguity, unslipped versions of these knots are listed below by the reference numbers found in The Ashley Book of Knots. All of these knots can also be made in a slipped form by starting with a bight and/or by completing the final tuck with a bight instead of the end.^[2]

#1241

#1242

#1243

This knot is also a useful hitch and is known by the name ground-line hitch when used for that purpose.^[2] It should be tightened by pulling the end first.

#1674

Shown in a slipped form at entry #1244, this variation is noted by Ashley as having better binding characteristics than the others.^[2]

References

↑ Clifford W. Ashley, The Ashley Book of Knots (New York: Doubleday, 1944), 62.
↑ 2.0 2.1 2.2 Ashley, 224.

Knots

By type

Bends	Adjustable bend Albright special Alpine butterfly bend Ashley's bend Basket weave knot Beer knot Blood knot Carrick bend Double fisherman's knot Fisherman's knot Flemish bend Grief knot Halyard bend Harness bend Heaving line bend Hunter's bend Nail knot One-sided overhand bend Racking bend Sheet bend Shoelace knot Shroud knot Simple Simon under Single carrick bend Surgeon's knot Surgeon's loop Triple fisherman's knot True lover's knot Water knot Zeppelin bend Zeppelin loop

Binding	Boa knot Bottle sling Constrictor knot Corned beef knot Granny knot Ground-line hitch Jamming knot Miller's knot Packer's knot Reef knot Strangle knot Thief knot Transom knot

Climbing	Alpine butterfly knot Autoblock Bachmann knot Beer knot Bowline on a bight Directional figure eight Double anchorman knot Double bowline Farmer's loop Figure-eight knot Figure-eight loop Figure-of-nine loop Friction hitch Klemheist knot Munter hitch Overhand loop Prusik Trident loop Yosemite bowline

Coils	Alpine coil Butterfly coil

Decorative	Carrick mat Chinese button knot Celtic button knot Diamond knot Fiador knot Friendship knot Matthew Walker knot Turk's head knot Wall and crown knot

Fishing (angling)	Angler's loop Arbor knot Bimini twist Blood knot Fisherman's knot Half blood knot Improved clinch knot Knotless knot Nail knot Palomar knot Snell knot Trilene knot Triple fisherman's knot Turle knot Uni knot

Hitches	Adjustable grip hitch Anchor bend Axle hitch Bachmann knot Bale sling hitch Barrel hitch Becket hitch Blackwall hitch Blake's hitch Boom hitch Buntline hitch Cat's paw Clove hitch Cow hitch Double overhand noose Falconer's knot Farrimond friction hitch Friction hitch Garda hitch Gripping Sailor's hitch Ground-line hitch Half hitch Halter hitch Highpoint hitch Highwayman's hitch Hitching tie Icicle hitch Improved clinch knot Killick hitch Knute hitch Lobster buoy hitch Marlinespike hitch Munter hitch Ossel hitch Pile hitch Snuggle hitch Timber hitch

Loop	Angler's loop Artillery loop Bale sling hitch Bowline Bumper knot Carrick bend loop Cowboy bowline Diamond knot Double bowline Dropper loop Eskimo bowline Fiador knot Fireman's chair knot Friendship knot loop Halter hitch Handcuff knot Honda knot Jury mast knot Overhand loop Portuguese bowline Rigid double splayed loop in the bight Slippery eight loop Span loop Spanish bowline Tom fool's knot Trident loop Triple bowline Triple crown knot Water bowline Yosemite bowline Zeppelin loop

Running (slip)	Hangman's knot Running bowline Running highwayman's hitch Slip knot Tarbuck knot

Shanks	Catshank Dogshank Sheepshank

Stopper	Ashley's stopper knot Button knot Double overhand knot Monkey's fist Stevedore knot

Whipping	Common whipping Overhand knot with draw-loop Portuguese whipping Sailmaker's whipping West Country whipping

Lists of knots
Related topics

Lists of knots	Bends Bindings Decorative knots Hitches (friction) Mathematical

Related topics	Chinese knotting International Guild of Knot Tyers Lashing Rope splicing Seizing

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