US3738692A - Pre-tied nail knot - Google Patents

Pre-tied nail knot Download PDF

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Publication number
US3738692A
US3738692A US00163357A US3738692DA US3738692A US 3738692 A US3738692 A US 3738692A US 00163357 A US00163357 A US 00163357A US 3738692D A US3738692D A US 3738692DA US 3738692 A US3738692 A US 3738692A
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United States
Prior art keywords
knot
support
tied
nail
untightened
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Expired - Lifetime
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US00163357A
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English (en)
Inventor
L Martuch
D Schmidt
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Scientific Anglers Inc
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Scientific Anglers Inc
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K91/00—Lines
    • A01K91/03—Connecting devices
    • A01K91/04—Connecting devices for connecting lines to hooks or lures

Definitions

  • ABSTRACT A pre-tied, untightened, fishermans nail knot supported by (1) an external coating around and between the surface of the loops of the knot; (2) an external support consisting of a tubing shrunk so as to contact the outer surfaces of the loops of the knot; (3) an internal support consisting of a rigid tube or bar within the loops of the knot; (4) an internal support consisting of a flexible tube within the loops of the knot; or (5) a combination of external and internal support.
  • knot commonly known as a nail knot.
  • the knot is so named because it was first tied with the use of a nail.
  • the configuration of the knot is such that absent some means of support, the knot may not be left in a tied but untightened condition.
  • An unsupported, untightened nail knot is unstable and will collapse. This previously required that the knot be tied upon the end of the line and immediately tightened into place each time that it was used.
  • the nail knot is particularly difficult to tie. Few fishermen possess the skills required to consistently produce a satisfactory nail knot. It is now possible to produce a stable, pre-tied, untightened nail knot, which retains its configuration and can easily be used by both the expert and the inexperienced fisherman without the trouble of individual preparation of the knot as needed.
  • the principal object of this invention is to provide a stable pre-tied, untightened nail knot. More specific objects and advantages are apparent from the following detailed description which is intended to disclose and illustrate but not limit the invention.
  • the present invention is based upon the discovery of a means by which a nail knot can be made to retain its configuration, i.e., the configuration of loops and their relationship to each other. I-Ieretofore, an unsupported knot would collapse. The configuration of upright or free standing loops could not be maintained.
  • the configuration of the knot can also be retained by an internal support, more specifically a tube or rod, either rigid or flexible, which extends through the center of the knot, thus preventing the loops from collapsing.
  • an internal support more specifically a tube or rod, either rigid or flexible, which extends through the center of the knot, thus preventing the loops from collapsing.
  • FIG. 1 is a drawing, on an enlarged scale, showing the configuration of an untightened fishermans nail knot.
  • FIG. 2 is a sectional drawing, on an enlarged scale, showing a free standing fisherman s nail knot supported by a surface coating.
  • FIG. 3 is a drawing, on an enlarged scale, showing a nail knot having an internal support consisting of a hollow tube.
  • FIG. 4 is a drawing, on an enlarged scale, showing a nail knot having an internal support consisting of a flexible tube and the end of a fishing line inserted within the flexible tube.
  • FIGS. 5, 6 and 7 show the steps required in tying a nail knot.
  • FIG. 8 is a drawing, on an enlarged scale, showing a nail knot having an external support consisting of a thick external coating.
  • FIGS. 9 and 10 are drawings, on an enlarged scale, showing the tightening on a fishing line of a pre-tied nail knot, having an external support consisting of a thick external coating.
  • FIG. 11 is a drawing, on an enlarged scale, showing the configuration of a variation of the nail knot known as the external nail knot.
  • FIG. 12 is a drawing, on an enlarged scale, showing another knot which consists of a series of loops and which lacking support may not be left in a tied but untightened condition.
  • Elements 1 and 2 refer to the two ends of the line making up the knot.
  • This element can be the leader or a monofilament.
  • Element 4 is the internal support which can be rigid or flexible, solid or hollow. In tying a nail knot, the leader is parallel to the support and extending past the support on one end about 6 inches. The short end of the leader is folded back towards the long end, and wound around the long end and the support at least 2 times and preferably 6 to 10 times, forming loops 3. What remains of the short end is then passed through the loops between the loops and the support.
  • FIGS. 5, 6 and 7 show the tying of a knot on an internal support.
  • the same procedure is utilized in tying a knot for external support.
  • the internal support upon which the knot is tied is preferably a solid rod having a V-shaped groove along its length through which the end of the knot material may be passed underneath the loops. After the knot is formed and the external support is applied, the internal support may be removed.
  • FIG. 2 a free standing nail knot having an external support consisting of a surface coating 7 is shown in a sectional view.
  • the external support is mainly limited to the external surface of the loops and the area immediately adjacent to the inner surface of the loops. The presence or amount of support on the area immediately adjacent to the inner surface of the loops is dependent upon the type of external support used. When a surface coating is utilized, there will be more coating on the inner surface than when a shrink tube is utilized.
  • a shrink tube external support is mainly restricted to the outer surface of the loops and the area between the loops.
  • FIG. 3 shows a pre-tied nail knot on an internal support member 4.
  • the support member shown is a short piece of tubing.
  • FIG. 4 shows a pre-tied nail knot on a flexible internal support 5.
  • a fly line 6 is inserted within the flexible internal support.
  • the knot will be tightened without removing the flexible support.
  • the flexible support is deformed and held tightly against the line by the knot.
  • the pre-tied nail knot of the present invention is usually constructed using a monofilament of nylon.
  • a multiplicity of filaments which are braided, twisted or laid side by side may also be used.
  • the filaments may consist of dacron, nylon, silk or any other suitable filamentous material.
  • the material may also be coated, as normally found in fly line material.
  • the knot may be a separate item or at the end of another element, such as a leader.
  • a leader When the knot is a separate item, both portions to be joined are inserted within the knot and the knot tightened.
  • the knot be an integral part of one of the elements being joined.
  • the knot is formed at one end of the material, element 1, with the longest portion, element 2, being the remainder of the material.
  • free standing knot a pre-tied, non-tightened nail knot having an external support; surface coating the solid separable coating on a nail knot which is limited to the exterior surfaces of the loop, and the area between the loops (this also includes a thick coating as shown in FIGS. 8, 9 and 10); in coating the nail knot some coating may appear on the internal surface of the loop, i.e., the area immediately adjacent to the inner surface of the loops; this embodiment is also included in the definition of surface coating; externally supported a pre-tied nail knot whose support is mainly in the area of the loops;
  • shrink tube tubing material preferably of a synthetic thermoplastic material, which when treated takes the configuration of the object it surrounds and thus gives support to said object;
  • filamentous line refers to either a monofilament or multifilament line; a monofilament line is preferred; internally supported a pre-tied nail knot having an internal support which may be a tube or a rod;
  • nail knot refers to a pre-tied, non-tightened nail knot or the variation as shown in FIG. 11;
  • non-tightened means an incompletely tightened knot (this may also be referred to as an untightened knot).
  • the entire support for the knot is derived from the surface coating.
  • This surface coating should be sufficiently rigid to support the loops in relationship to each other and to retain the loop configuration.
  • the surface coating should, at the same time, be sufficiently fragile to crumble, break apart or separate from the loops when the knot is tightened. In this manner, the knot retains its configuration during normal handling and separates from the support as the knot is tightened.
  • waxes both natural and synthetic
  • waxes such as spermaceti, beeswax, carnauba, paraffin, candelilla, ceresin, stearic acid, the medium molecular weight polyethylenes, polyethylene glycols and polyoxyethylene esters and the like
  • inorganic plastics and cements such as gypsum cement plaster of paris and the like, dental cements zinc phosphate cements (an example of which is MODERN TENACIN-L. D. Caulk C0.; this is a certified cement ADA specification No. 8, First Revision) and silicate cement (an example is S. S.
  • White Filling Porcelain Improved is a certified cement ADA Specification No. 9, First Revision) and the like; plastic, gamma or amorphous sulphur and the like; natural resins such as Dammar, colophony, gum rosin, pine rosin, amber and the like; low melting metals, such as Woods metal, Roses metal and the like; thermoplastic resins, such as polystyrene, polyvinyl chloride, polyvinyl acetate and copolymers, polyvinylidene chloride, polymethyl methacrylate, cellulose nitrate, cellulose acetate, cellulose acetate butyrate, acrylonitrile polymers and the like; and thermosetting resins, such as phenol-formaldehyde, ureaformaldehyde, epoxy resins and the like.
  • the preferred surface coating is a thermoplastic resin, further examples of which are well known in
  • a shrink tube is the means for the external support
  • a synthetic thermoplastic material such as listed above for surface coating.
  • Other materials may also be utilized and these are known to those skilled in the art.
  • the thickness of a surface coating is dependent upon the material selected for the coating and the degree of support desired. This thickness can easily beidetermined without undue experimentation.
  • the material from which the knot will be constructed is wound on an internal support, coated with the surface coating, and after curing or cooling of the coating material the internal support is removed.
  • the internal support may be any suitable material. It is preferably prepared" prior to the winding of the knot and coating to insure that the coating would not adhere to the internal support. These procedures are well known to those skilled in the plastic moulding art and can be utilized in the present art.
  • a means of preparing the internal support is the application of a teflon coating or silicon lubricant.
  • Internal support forms which require little or no prior preparation, such as aluminum, certain synthetic resinous material and the like can be utilized without any adherence of the coating to the support. These internal support forms are utilized only to prepare the knot and do not remain with the knot. The same form, however, can be used as the internal support, which is another embodiment of this invention.
  • the thickness of the surface coating varies, as discussed previously, with the coating selected and the degree of support desired.
  • a thin surface coating is shown in FIG. 2 where element 7 represented the surface coating.
  • the thickness of the coating may be increased, as illustrated in FIGS. 8, 9 and 10.
  • the knot material is on the internal surface of the support.
  • the line pulls free from the coating support and the coating, which normally does not crumble, is slipped off.
  • an external support consisting of shrink tubing as the knot is tightened. The tubing is then slipped off or is slit for removal.
  • elements 1 and 2 are the two ends of the knot material, element 6 is the line upon which the knot is to be tightened, element 8 is the thickened coating and element 9 is the tightened nail knot.
  • the knot may be supported by an internal support, an external support or a combination of an internal and external support.
  • the knot provided with an internal support is held or supported exteriorly with the fingers of the person applying the knot, while the internal support is withdrawn. It is important that the shape and relative position of the coils be maintained after the internal support is withdrawn.
  • the fly fishing line, or material around which the knot will be tightened, is inserted into the center of the knot, taking the place of the internal support. The knot is then tightened.
  • the knot With flexible internal supports, the knot is tightened over the internal support and without withdrawing it from the coils of the knot. If an external support is also present, it is removed by one of the methods discussed above.
  • the rigid, internal supports do not remain with the knot when it is tightened on a fly fishing line or such, there are few limitations as to an appropriate material for the support. It should be relatively light and relatively non-deformable. It should also be of a material which permits the knot to be slid off the support especially if the knot is coated.
  • a flexible internal support should have sufficient strength to support the knot while retaining sufficient flexibility to allow itself to be crushed between the inner surfaces of the coils of the knot and the line or such upon which the knot is being tightened.
  • Suitable materials for use as internal support include, but are not limited to,
  • the flexible internal supports are preferably polymers such as those listed above.
  • the rigid supports may be either the polymers listed above, the metals or their-equivalents.
  • Other suitable materials which have equivalent properties to those previously described can also be used in addition to those enumerated above. Many suitable materials for both rigid and flexible internal support are commercially available.
  • the knot is prepared on the internal support as previously described. If the knot is to be surface coated, the coating is then applied and cured or cooled, as necessary.
  • the coating material and internal support material should be selected which are non-compatible, i.e., in which the coating will not combine with or strongly adhere to the support. If a coating material with a strong adherence to the support is used, it will not be possible to slide the knot off the support when required.
  • a slight adherence of the coating to the support is not detrimental and may be beneficial. This adherence will prevent any movement of the loops and of the support, in relation to each other, and thus prevents the two becoming separate under shipping conditions. The adherence, however, would not be sufficiently strong to prevent removal of the knot from the support when desired.
  • the conditions of curing the coating should also be controlled to prevent a weakening or deforming of the internal support or of the loops of the knot.
  • the selection of the proper materials and operating conditions are known to those skilled in this art.
  • nail knot is a good secure knot for general use and may therefore be used whenever a secure connection between two lines is desired.
  • the material must be flexible.
  • Usable flexible material includes not only the synthetic and natural fibers previously discussed, but also thin wire such as copper and aluminum wire.
  • knot material used need be flexible and the two materials being connected may be rigid such as rods.
  • FIG. 12 This knot is useful in the sport fishing industry for securing a fly line to a backing material.
  • the backing material would normally comprise the knot material.
  • a pre-tied, untightened nail knot comprising filamentous line, having at least two loops, at least one end of said line passing through the loops, the two ends of said knot emerging from the knot in opposite directions, and a support, said support being selected from an external support, an internal support and a combination of external and internal support, said external support being selected from the group consisting of a solid separable coating around and between the loops of said knot and a shrink tubing, said internal support being a rigid or flexible support within the loops of said knot.

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US00163357A 1971-07-16 1971-07-16 Pre-tied nail knot Expired - Lifetime US3738692A (en)

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US16335771A 1971-07-16 1971-07-16

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US (1) US3738692A (enrdf_load_stackoverflow)
JP (1) JPS4826572A (enrdf_load_stackoverflow)
CA (1) CA939510A (enrdf_load_stackoverflow)
GB (1) GB1378454A (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195435A (en) * 1978-07-03 1980-04-01 Kern Fred G Float position adjustment apparatus for fishing line
US6460226B1 (en) 2000-08-25 2002-10-08 The United States Of America Corps Of Engineers As Respresented By The Secretary Of The Army Method and device for securing a knot
US20060260182A1 (en) * 2005-05-17 2006-11-23 Gary Bennis Slip bobber rig
US20100217308A1 (en) * 2009-02-20 2010-08-26 Boston Scientific Scimed, Inc. Locking element for vascular closure device
US20100275432A1 (en) * 2009-02-20 2010-11-04 Boston Scientific Scimed, Inc. Locking element for vascular closure device
US20110059673A1 (en) * 2008-04-25 2011-03-10 Haspel Productontwikkeling B.V. Toy Construction Assembly
US20180092642A1 (en) * 2014-06-24 2018-04-05 Covidien Lp Anvil Assembly Delivery Systems
US20180146727A1 (en) * 2016-11-30 2018-05-31 Gusto Outfitters, Llc Evaporative neck cooling device
CN108513958A (zh) * 2018-04-16 2018-09-11 张秀括 鱼线子线绑鱼钩的方法以及鱼线主线绑鱼竿处线圈的方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51133102A (en) * 1975-05-16 1976-11-18 Dowa Mining Co Flotation method for complicated sulfide mineral
ZA766304B (en) * 1975-11-03 1977-09-28 Fluor Utah Flotation process
US4441993A (en) * 1975-11-03 1984-04-10 Fluor Corporation Flotation process
US5279067A (en) * 1991-08-01 1994-01-18 Tollison Bruce O Easy tie fish hook or the like

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2726468A (en) * 1952-04-16 1955-12-13 William J Fahy Device for forming knots on shanks

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2726468A (en) * 1952-04-16 1955-12-13 William J Fahy Device for forming knots on shanks

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195435A (en) * 1978-07-03 1980-04-01 Kern Fred G Float position adjustment apparatus for fishing line
US6460226B1 (en) 2000-08-25 2002-10-08 The United States Of America Corps Of Engineers As Respresented By The Secretary Of The Army Method and device for securing a knot
US20060260182A1 (en) * 2005-05-17 2006-11-23 Gary Bennis Slip bobber rig
US7434349B2 (en) * 2005-05-17 2008-10-14 Gary Bennis Slip bobber rig
US20090013586A1 (en) * 2005-05-17 2009-01-15 Gary Bennis Slip Bobber Rig
US20090272021A1 (en) * 2005-05-17 2009-11-05 Gary Bennis Slip bobber rig
US9015986B2 (en) * 2005-05-17 2015-04-28 Gary Bennis Slip bobber rig
US20110059673A1 (en) * 2008-04-25 2011-03-10 Haspel Productontwikkeling B.V. Toy Construction Assembly
US20100275432A1 (en) * 2009-02-20 2010-11-04 Boston Scientific Scimed, Inc. Locking element for vascular closure device
US8375553B2 (en) * 2009-02-20 2013-02-19 Boston Scientific Scimed, Inc. Locking element for vascular closure device
US20100217308A1 (en) * 2009-02-20 2010-08-26 Boston Scientific Scimed, Inc. Locking element for vascular closure device
US9913634B2 (en) * 2009-02-20 2018-03-13 Boston Scientific Scimed, Inc. Locking element for vascular closure device
US20180092642A1 (en) * 2014-06-24 2018-04-05 Covidien Lp Anvil Assembly Delivery Systems
US10470772B2 (en) * 2014-06-24 2019-11-12 Covidien Lp Anvil assembly delivery systems
US11259812B2 (en) 2014-06-24 2022-03-01 Covidien Lp Anvil assembly delivery systems
US20180146727A1 (en) * 2016-11-30 2018-05-31 Gusto Outfitters, Llc Evaporative neck cooling device
US10433597B2 (en) * 2016-11-30 2019-10-08 Gusto Outfitters, Llc Evaporative neck cooling device
CN108513958A (zh) * 2018-04-16 2018-09-11 张秀括 鱼线子线绑鱼钩的方法以及鱼线主线绑鱼竿处线圈的方法

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CA939510A (en) 1974-01-08
JPS4826572A (enrdf_load_stackoverflow) 1973-04-07
GB1378454A (en) 1974-12-27

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