Hook

Last updated
Lifting hook on a crane truck with a standard round hook and a gated opening KamAZ-53213 Kranaufbau.jpg
Lifting hook on a crane truck with a standard round hook and a gated opening
A cabin hook used as a latch for a wooden gate Door hook.jpg
A cabin hook used as a latch for a wooden gate
Fish hooks are pointed and often barbed to help catch and tether a fish's mouth FishHooks.JPG
Fish hooks are pointed and often barbed to help catch and tether a fish's mouth
The main anchor of IJN battleship Hiei with the classic double-hook design Imperial Japanese Navy Battleship Hiei main anchor at JMSDF Kanoya Naval Air Base Museum April 29, 2017 02.jpg
The main anchor of IJN battleship Hiei with the classic double-hook design
Clothes hangers with a top hook to hang onto a crossbar or a clothesline HK Sheung Wan Yi Jia Clothes hangers by plastic in red June-2012.JPG
Clothes hangers with a top hook to hang onto a crossbar or a clothesline
A grappling hook with multiple hooks to increase the chances of catching and anchoring onto a surface or an object Kaginawa.JPG
A grappling hook with multiple hooks to increase the chances of catching and anchoring onto a surface or an object
A crochet hook with a deep hooking groove near the tip, used to pull yarns during embroidery Gron struk (8875448182).jpg
A crochet hook with a deep hooking groove near the tip, used to pull yarns during embroidery
A hook-and-eye clasp is composed of two pieces that are sewn to clothing, one of which serves as a hook while the other as a staple Hook and eye clasp.JPG
A hook-and-eye clasp is composed of two pieces that are sewn to clothing, one of which serves as a hook while the other as a staple

A hook is a tool consisting of a length of material, typically metal, that contains a portion that is curved/bent back or has a deeply grooved indentation, which serves to grab, latch or in any way attach itself onto another object. The hook's design allows traction forces to be relayed through the curved/indented portion to and from the proximal end of the hook, which is either a straight shaft (known as the hook's shank) or a ring (sometimes called the hook's "eye") for attachment to a thread, rope or chain, providing a reversible attachment between two objects.

In many cases, the distal end of the hook is sharply pointed to enable penetration into the target material, providing a firmer anchorage. Some hooks, particularly fish hooks, also have a barb, a backwards-pointed projection near the pointed end that functions as a secondary "mini-hook" to catch and trap surrounding material, ensuring that the hook point cannot be easily pulled back out once embedded in the target.

Variations

Golden pothook pictured in the coat of arms of Jappila Jappila.vaakuna.svg
Golden pothook pictured in the coat of arms of Jäppilä

Related Research Articles

Crochet is a process of creating textiles by using a crochet hook to interlock loops of yarn, thread, or strands of other materials. The name is derived from the French term crochet, which means 'hook'. Hooks can be made from a variety of materials, such as metal, wood, bamboo, bone or even plastic. The key difference between crochet and knitting, beyond the implements used for their production, is that each stitch in crochet is completed before the next one is begun, while knitting keeps many stitches open at a time. Some variant forms of crochet, such as Tunisian crochet and broomstick lace, do keep multiple crochet stitches open at a time.

<span class="mw-page-title-main">Tatting</span> Craft of making lace with loops and knots using a small shuttle

Tatting is a technique for handcrafting a particularly durable lace from a series of knots and loops. Tatting can be used to make lace edging as well as doilies, collars, accessories such as earrings, necklaces, waist beads, and other decorative pieces. The lace is formed by a pattern of rings and chains formed from a series of cow hitch or half-hitch knots, called double stitches, over a core thread. Gaps can be left between the stitches to form picots, which are used for practical construction as well as decorative effect.

<span class="mw-page-title-main">Fishing line</span> String or line intended for angling

A fishing line is any flexible, high-tensile cord used in angling to tether and pull in fish, in conjunction with at least one hook. Fishing lines are usually pulled by and stored in a reel, but can also be retrieved by hand, with a fixed attachment to the end of a rod, or via a motorized trolling outrigger.

<span class="mw-page-title-main">Prosthesis</span> Artificial device that replaces a missing body part

In medicine, a prosthesis, or a prosthetic implant, is an artificial device that replaces a missing body part, which may be lost through physical trauma, disease, or a condition present at birth. Prostheses are intended to restore the normal functions of the missing body part. Amputee rehabilitation is primarily coordinated by a physiatrist as part of an inter-disciplinary team consisting of physiatrists, prosthetists, nurses, physical therapists, and occupational therapists. Prostheses can be created by hand or with computer-aided design (CAD), a software interface that helps creators design and analyze the creation with computer-generated 2-D and 3-D graphics as well as analysis and optimization tools.

<span class="mw-page-title-main">Angling</span> Fishing technique

Angling is a fishing technique that uses a fish hook attached to a fishing line to tether individual fish in the mouth. The fishing line is usually manipulated via a fishing rod, although rodless techniques such as handlining also exist. Modern angling rods are usually fitted with a fishing reel that functions as a cranking device for storing, retrieving and releasing out the line, although Tenkara fishing and traditional cane pole fishing are two rod-angling methods that do not use any reel. The fish hook itself can be additionally weighted with a denser tackle called a sinker, and is typically dressed with an appetizing bait to attract and entice the fish into swallowing the hook, but sometimes an inedible fake/imitation bait with multiple attached hooks is used instead of a single hook with edible bait. Some type of bite indicator, such as a float, a bell or a quiver tip, is often used to relay underwater status of the hook to the surface and alert the angler of a fish's presence.

A crochet hook is an implement used to make loops in thread or yarn and to interlock them into crochet stitches. It is a round shaft pointed on one end, with a lateral groove behind it. The point eases the insertion of the hook through the material being crocheted and the groove makes it possible to pull a loop back through the material. The shaft is then divided into a working area that determines the hook's nominal diameter and ensures the uniform sizing of the loops formed on it, and a handle.

<span class="mw-page-title-main">Sickle</span> Single-handed agricultural tool

A sickle, bagging hook, reaping-hook or grasshook is a single-handed agricultural tool designed with variously curved blades and typically used for harvesting or reaping grain crops, or cutting succulent forage chiefly for feeding livestock. Falx was a synonym, but was later used to mean any of a number of tools that had a curved blade that was sharp on the inside edge.

<span class="mw-page-title-main">Fastener</span> Hardware device that mechanically joins or affixes two or more objects together

A fastener or fastening is a hardware device that mechanically joins or affixes two or more objects together. In general, fasteners are used to create non-permanent joints; that is, joints that can be removed or dismantled without damaging the joining components. Steel fasteners are usually made of stainless steel, carbon steel, or alloy steel.

<span class="mw-page-title-main">Fish hook</span> Device for catching fish

A fish hook or fishhook, formerly also called an angle, is a hook used to catch fish either by piercing and embedding onto the inside of the fish mouth (angling) or, more rarely, by impaling and snagging the external fish body. Fish hooks are normally attached to a line, which tethers the target fish to the angler for retrieval, and are typically dressed with some form of bait or lure that entices the fish to swallow the hook out of its own natural instinct to forage or hunt.

<span class="mw-page-title-main">Grappling hook</span> Device with multiple hooks attached to a rope

A grappling hook or grapnel is a device that typically has multiple hooks attached to a rope or cable; it is thrown, dropped, sunk, projected, or fastened directly by hand to where at least one hook may catch and hold on to objects. Generally, grappling hooks are used to temporarily secure one end of a rope. They may also be used to dredge for submerged objects.

<span class="mw-page-title-main">Fly tying</span> Process of producing artificial flies used in fly fishing

Fly tying is the process of producing an artificial fly used by fly fishing anglers to catch fish. Fly tying is a manual process done by a single individual using hand tools and a variety of natural and manmade materials that are attached to a hook. Although the recent history of fly tying dates from the middle 1800s, fly tyers were engaged in tying flys since at least 200 AD.

<span class="mw-page-title-main">Snap fastener</span> Two-part fastener consisting of a ball and socket that snap into place when pressed together

A snap fastener, also called snap button, press button, press stud, press fastener, dome fastener, popper, snap and tich, is a pair of interlocking discs, made out of a metal or plastic, commonly used in place of traditional buttons to fasten clothing and for similar purposes. A circular lip under one disc fits into a groove on the top of the other, holding them fast until a certain amount of force is applied. Different types of snaps can be attached to fabric or leather by riveting with a punch and die set specific to the type of rivet snaps used, sewing, or plying with special snap pliers.

<span class="mw-page-title-main">Spinnerbait</span> Fishing lure

A spinnerbait or spinner is any one of a family of hybrid fishing lures that combines the designs of a swimbait with one or more spoon lure blades. Spinnerbaits get the name from the action of the metallic blades, which passively revolve around the attachment point like a spinning propeller when the lure is in motion, creating varying degrees of vibration and flashing that mimic small fish or other preys of interest to large predatory fishes. The two most popular types of spinnerbaits are the in-line spinner and safety pin spinnerbait, though others such as the tail spinner also exist. Spinnerbaits are used principally for catching freshwater fishes such as perch, pike and bass.

<span class="mw-page-title-main">Fishing tackle</span> Equipment used for fishing

Fishing tackle is the equipment used by anglers when fishing. Almost any equipment or gear used in fishing can be called fishing tackle, examples being hooks, lines, baits/lures, rods, reels, floats, sinkers/feeders, nets, spears, gaffs and traps, as well as wires, snaps, beads, spoons, blades, spinners, clevises and tools that make it easy to tie knots.

<span class="mw-page-title-main">Fish tape</span> A tool used to install electrical wires in tubes

A fish tape is a tool used by electricians to route new wiring through walls and electrical conduit.

<span class="mw-page-title-main">Ocular prosthesis</span> Type of craniofacial prosthesis

An ocular prosthesis, artificial eye or glass eye is a type of craniofacial prosthesis that replaces an absent natural eye following an enucleation, evisceration, or orbital exenteration. The prosthesis fits over an orbital implant and under the eyelids. Though often referred to as a glass eye, the ocular prosthesis roughly takes the shape of a convex shell and is made of medical grade plastic acrylic. A few ocular prostheses today are made of cryolite glass. A variant of the ocular prosthesis is a very thin hard shell known as a scleral shell which can be worn over a damaged or eviscerated eye. Makers of ocular prosthetics are known as ocularists. An ocular prosthesis does not provide vision; this would be a visual prosthesis. Someone with an ocular prosthesis is altogether blind on the affected side and has monocular vision.

<span class="mw-page-title-main">Hook-and-eye closure</span> Traditional type of fastener

A hook-and-eye closure is a simple and secure method of fastening garments together. It consists of a metal hook, commonly wire bent to shape, and an eye of the same material into which the hook fits.

<span class="mw-page-title-main">Bolt (fastener)</span> Threaded fastener with an external male thread requiring a matching female thread

A bolt is an externally helical threaded fastener capable of being tightened or released by a twisting force (torque) to a matching nut. The bolt has an external male thread requiring a matching nut with a pre-formed female thread.

<span class="mw-page-title-main">Hook-and-loop fastener</span> Type of textile fastener

Hook-and-loop fasteners, also known as hook-and-pile fasteners or touch fasteners, are devices that allow two surfaces to be repeatedly fastened and unfastened, commonly used in clothing and other applications. They are often referred to by the genericized trademark velcro, which was the original name given by the inventor. The fastener consists of two components: typically, two linear fabric strips or smaller segments that are attached—sewn or otherwise adhered—to opposing surfaces designed to be fastened together. One component features tiny hooks, and the other features smaller loops. When the two are pressed together, the hooks catch in the loops, and the two pieces fasten or bind temporarily. Separation can be achieved by pulling or peeling the two surfaces apart, during which the strips produce a distinctive ripping sound.

<span class="mw-page-title-main">String (structure)</span> Flexible structure made from fibers twisted together

String is a long flexible structure made from fibers twisted together into a single strand, or from multiple such strands which are in turn twisted together. String is used to tie, bind, or hang other objects. It is also used as a material to make things, such as textiles, and in arts and crafts. String is a simple tool, and its use by humans is known to have been developed tens of thousands of years ago. In Mesoamerica, for example, string was invented some 20,000 to 30,000 years ago, and was made by twisting plant fibers together. String may also be a component in other tools, and in devices as diverse as weapons, musical instruments, and toys.

References

  1. Unger-Hamilton, Romana (July 1985). "Microscopic Striations on Flint Sickle-Blades as an Indication of Plant Cultivation: Preliminary Results". World Archaeology. 17 (1): 121–6. doi:10.1080/00438243.1985.9979955.
  2. Banning, E.B. (1998). "The Neolithic Period: Triumphs of Architecture, Agriculture, and Art". Near Eastern Archaeology. 61 (4): 188–237. doi:10.2307/3210656. JSTOR   3210656. S2CID   164006022.
  3. Beazley, Elisabeth (1990). Beazley's Design and Detail of the Space Between Buildings. Taylor & Francis. p. 230. ISBN   978-0-419-13620-0.
  4. Porter, Brian; Christopher Tooke (2007). Carpentry and Joinery 3. Butterworth-Heinemann. p. 200. ISBN   978-0-7506-6505-6.