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Hook
A hook is a tool consisting of a length of material, typically metal, that contains a portion that is curved or indented, such that it can be used to grab onto, connect, or otherwise attach itself onto another object. In a number of uses, one end of the hook is pointed, so that this end can pierce another material, which is then held by the curved or indented portion. Some kinds of hooks, particularly fish hooks, also have a barb, a backwards-pointed projection near the pointed end of the hook to ensure that once the hook is embedded in its target, it can not easily be removed. Variations * Bagging hook, a large sickle or reaping hook used for harvesting grain * Bondage hook, used in sexual bondage play * Cabin hook, a hooked bar that engages into an eye screw, used on doors * Cap hook, hat ornament of the 15th and 16th centuries * Cargo hook (helicopter), different types of hook systems for helicopters * Crochet hook, used for crocheting thread or yarn * Drapery hook Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Hook
A fish hook or fishhook, formerly also called angle (from Old English ''angol'' and Proto-Germanic ''*angulaz''), 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. Fish hooks have been employed for millennia by fishermen to catch freshwater and saltwater fish. There is an enormous variety of fish hooks in the world of fishing. Sizes, designs, shapes, and materials are all variable depending on the intended purpose of the hook. Fish hooks are manufactured for a range of purposes from general fishing to extremely limited and specialized applications. Fish hooks are designed to hold various types of artificia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hook And Loop Fastener
Hook-and-loop fasteners, hook-and-pile fasteners or touch fasteners (often referred to by the genericized trademark velcro, due to the prominence of the Velcro Brand) consist of two components: typically, two lineal fabric strips (or, alternatively, round "dots" or squares) which are attached (sewn or otherwise adhered) to the opposing surfaces to be fastened. The first component features tiny hooks; the second features smaller loops. When the two are pressed together the hooks catch in the loops and the two pieces fasten or bind temporarily. When separated, by pulling or peeling the two surfaces apart, the strips make a distinctive ripping sound. History The original hook-and-loop fastener was conceived in 1941 by Swiss engineer George de Mestral. The idea came to him one day after returning from a hunting trip with his dog in the Alps. He took a close look at the burs of burdock that kept sticking to his clothes and his dog's fur. He examined them under a microscope, and no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hook (hand Tool)
A hook is a hand tool used for securing and moving loads. It consists of a round wooden handle with a strong metal hook about 8" long projecting at a right angle from the center of the handle. The appliance is held in a closed fist with the hook projecting between two fingers. This type of hook is used in many different industries, and has many different names. It may be called a box hook, cargo hook, loading hook, docker's hook when used by longshoremen, and a baling hook, bale hook, or hay hook in the agricultural industry. Other variants exist, such as in forestry, for moving logs, and a type with a long shaft, used by city workers to remove manhole covers. Smaller hooks may also be used in food processing and transport. Dockwork The longshoreman's hook was historically used by longshoremen (stevedores). Before the age of containerization, freight was moved on and off ships with extensive manual labor, and the longshoreman's hook was the basic tool of the dockworker. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tailhook
A tailhook, arresting hook, or arrester hook is a device attached to the empennage (rear) of some military fixed-wing aircraft. The hook is used to achieve rapid deceleration during routine landings aboard aircraft carrier flight decks at sea, or during emergency landings or aborted takeoffs at properly equipped airports. The tailhook was first demonstrated at sea on 18 January 1911 by the aviator Eugene Ely, having successfully landed aboard the armored cruiser USS ''Pennsylvania'' with the aid of the device. It was not until the early 1920s that a practical system, paired with deck-mounted arresting gear, was devised and put into use. During the 1930s, numerous vessels were thus equipped, permitting the use of increasingly heavy combat aircraft at sea during the Second World War. Following the introduction of jet-powered aircraft during the 1950s, arrestor technology was further advanced to permit aircraft operating at greater speeds and weights to land aboard aircraft c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dress Hook
A dress hook is a decorative clothing accessory of the medieval and Tudor periods used to fasten outer garments or to drape up skirts. Made of base metal or precious silver and silver-gilt, dress hooks are documented in wills and inventories, and surviving hooks have been identified in the archaeological record throughout England. "Dress hook" is the modern specialist terminology. In historical records, these items are referred to simply as "hooks", and context may be needed to differentiate them from hook-and-eye closures, which were also used in large quantities, in both base and precious metals, in the 15th and 16th centuries. Usage Documentary evidence suggests that dress hooks were often owned in pairs. Dress hooks were used to draw up skirts, either to keep them out of the muck of the street or to display the rich fabric of the garment beneath, and may also have been used to fasten garments or simply as decoration. At the time of her death in 1509, the jewellery of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crochet Hook
A crochet hook (or crochet needle) 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. Construction Crochet appeared as a distinct textile art during the early 19th century, and many crochet hooks survive from that period. These can be sorted into two groups, the one with thin steel hooks that are set into separate handles, and the other including single-piece hooks made in a variety of materials. The distinction between steel and other hooks persists to the present day, although all are now commonly of single-piece construction. A variety of coverings m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cap Hook
A cap hook is a decorative hat ornament fashionable from the late Middle Ages through the Tudor period, used to pin up or decorate men's hat brims. Cap hooks were made of gold, silver, or silver-gilt base metal, and might be decorated with jewels or enamelling. Cap hooks could be purely decorative or could carry religious or symbolic meaning. The latter form are called ''enseignes'' and may be an evolution of the medieval pilgrim badge. Usage In the early 16th century, it became fashionable for men to wear multiple small cap hooks alongside a larger hat jewel on the turned-up brims of their hats. Study and identification Cap hooks were little studied until the UK Treasure Act of 1996 required the examination and assessment of such small objects when made of precious metals. A seminal cross-disciplinary study of silver-gilt hooks in the Journal of the Society of Antiquaries of London in 2002 differentiates cap hooks from other types of dress hooks. Cap hooks have a hook b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bagging Hook
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, either freshly cut or dried as hay. 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 such as a scythe. Since the beginning of the Iron Age hundreds of region-specific variants of the sickle have evolved, initially of iron and later steel. This great diversity of sickle types across many cultures can be divided into smooth or serrated blades, both of which can be used for cutting either green grass or mature cereals using slightly different techniques. The serrated blade that originated in prehistoric sickles still dominates in the reaping of grain and is even found in modern grain-harvesting machines and in some kitchen knives. History Pre-Neolithic The d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cargo Hook (helicopter)
A cargo hook is a device suspended below a helicopter and allows the transport of external loads during flight. Common terms for this operation include slingwork, underslung loads, external loadwork, and external load operations. Hook types Primary hooks Primary, or "belly", hooks are designed to mount directly to the airframe belly, i.e. underside, of a helicopter. Because they are attached to the fuselage, or "skin," of the aircraft, belly hooks are regulated by the various worldwide aviation regulatory agencies. In the United States, belly hooks are governed under Federal Aviation Administration (FAA) FAR Part 133. Belly hooks are designed, manufactured, and approved for use on specific aircraft models. Belly hooks that have been certified by the FAA receive a Supplemental Type Certificate (STC) that describes the aircraft models that are authorized to use the hook for external load operations. For example, a belly hook approved for use by the FAA on a Eurocopter AS350 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flesh-hook
270px, The Dunaverney flesh-hook, Bronze Age Ireland Flesh-hook is a term for a variety of archaeological artifacts which have metal hooks and a long handle, or socket for a lost wooden handle. Though the term may be applied to objects from other times and places, it is especially associated with the European Bronze Age and Iron Age. The metal shaft divides to form between two and five hooks with some sort of sharpened end. The purposes of the objects probably include pulling meat out of a pot or hides out of tan-pits. Some are plain in design but many are elaborately decorated, and if related to food, are clearly for the feasting hall rather than the kitchen (if such a distinction existed); some have been found with cauldrons and other large vessels. Some Bronze Age types are regarded as ritual objects, perhaps never actually used for a practical purpose. The division and serving of meat at feasts and after sacrifices was a matter of great social significance, and some ten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grappling Hook
A grappling hook or grapnel is a device that typically has multiple hooks (known as ''claws'' or ''flukes'') attached to a rope; it is thrown, dropped, sunk, projected, or fastened directly by hand to where at least one hook may catch and hold onto objects. Generally, grappling hooks are used to temporarily secure one end of a rope. They may also be used to dredge for submerged objects. The device was invented by the Romans in approximately 260 BC. The grappling hook was originally used in naval warfare to catch ship rigging so that it could be boarded. Design A common design has a central shaft with a hole ("eye") at the shaft base to attach the rope, and three or four equally spaced hooks at the end, arranged so that at least one is likely to catch on some protuberance of the target. Some modern designs feature folding hooks to resist unwanted attachment. Most grappling hooks are thrown by hand, but some used in rescue work are propelled by compressed air (e.g., the Plu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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