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Cleat (nautical)
In nautical contexts, a cleat is a device for securing a rope. Types Types of cleat designs include the following: * A horn cleat is the traditional design, featuring two “horns” extending parallel to the deck or the axis of the spar, attached to a flat surface or a spar, and resembling an anvil. * A cam cleat in which one or two spring-loaded cam Cam or CAM may refer to: Science and technology * Cam (mechanism), a mechanical linkage which translates motion * Camshaft, a shaft with a cam * Camera or webcam, a device that records images or video In computing * Computer-aided manufacturin ...s pinch the rope, allowing the rope to be adjusted easily, and quickly released when under load. * A jam cleat in which the line is pinched in a v-shaped slot. * A clam cleat (or jam cleat) in which the rope is held between two fluted stationary pieces. Such a cleat vaguely resembles two halves of a clam shell held back to back. It is more compact than a cam cleat, but the rope is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rope
A rope is a group of yarns, Plying, plies, fibres, or strands that are plying, twisted or braided together into a larger and stronger form. Ropes have high tensile strength and can be used for dragging and lifting. Rope is thicker and stronger than similarly constructed cord, String (structure), string, and twine. Construction Rope may be constructed of any long, stringy, fibrous material (e.g., rattan, a natural material), but generally is constructed of certain natural fibre, natural or synthetic fibre, synthetic fibres. Synthetic fibre ropes are significantly stronger than their natural fibre counterparts, they have a higher tensile strength, they are more resistant to rotting than ropes created from natural fibres, and they can be made to float on water. But synthetic ropes also possess certain disadvantages, including slipperiness, and some can be damaged more easily by UV light. Common natural fibres for rope are Manila hemp, hemp, linen, cotton, coir, jute, straw, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spar (sailing)
A spar is a pole of wood, metal or lightweight materials such as carbon fibre used in the rigging of a sailing vessel to carry or support its sail. These include yards, booms, and masts, which serve both to deploy sail and resist compressive and bending forces, as well as the bowsprit and spinnaker pole. In larger vessels during the age of sail, spare spars could be roped together to provide a temporary surface known as a "spar deck". These served as jury-rigged repairs for permanent decks, or as an additional platform under which to shelter goods or crew. The term was also informally applied to areas of the forecastle The forecastle ( ; contracted as fo'c'sle or fo'c's'le) is the upper deck (ship), deck of a sailing ship forward of the foremast, or, historically, the forward part of a ship with the sailors' living quarters. Related to the latter meaning is t ... or quarterdeck where spare spars were stored by laying them flat against the existing decking. In the moder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anvil
An anvil is a metalworking tool consisting of a large block of metal (usually Forging, forged or Steel casting, cast steel), with a flattened top surface, upon which another object is struck (or "worked"). Anvils are massive because the higher their inertia, the more efficiently they cause the energy of striking tools to be transferred to the work piece. In most cases the anvil is used as a forge, forging tool. Before the advent of modern welding technology, it was the primary tool of metal workers. The great majority of modern anvils are made of cast steel that has been heat treated by either Case-hardening, flame or Induction_hardening, electric induction. Inexpensive anvils have been made of cast iron and low-quality steel, but are considered unsuitable for serious use, as they deform and lack rebound when struck. The largest single piece tool steel anvil that is heat treated is 1600 pounds. This anvil was made in 2023 by Oak Lawn Blacksmith. There are larger anvils tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cam (mechanism)
A cam is a rotating or sliding piece in a linkage (mechanical), mechanical linkage used especially in transforming rotary motion into linear motion. It is often a part of a rotating wheel (e.g. an eccentric wheel) or shaft (e.g. a cylinder with an irregular shape) that strikes a lever at one or more points on its circular path. The cam can be a simple tooth, as is used to deliver pulses of power to a steam hammer, for example, or an Eccentric (mechanism), eccentric disc or other shape that produces a smooth reciprocating (back and forth) motion in the ''Cam follower, follower'', which is a lever making contact with the cam. A cam timer is similar, and these were widely used for electric machine control (an electromechanical timer in a washing machine being a common example) before the advent of inexpensive electronics, microcontrollers, integrated circuits, programmable logic controllers and digital control. Camshaft The cam can be seen as a device that converts rotational mot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cleat Hitch
The cleat hitch is a knot for securely attaching a rope to a cleat. Tying The hitch begins with a dead turn around the cleat then continues forming an “8”. The hitch is finished with an inverted half hitch. File:Cleat 01 fr.jpg, A dead turn File:Cleat 02.jpg, We cross by making an ''eight'' File:Cleat 03.jpg, Prepare the reverse half hitch File:Cleat 04.jpg, The finished knot See also * List of knots * Cleat * Clove hitch Notes Bibliography * Ashley, Clifford W. (1993) 944 Year 944 ( CMXLIV) was a leap year starting on Monday of the Julian calendar. Events By place Byzantine Empire * Arab–Byzantine War: Byzantine forces are defeated by Sayf al-Dawla. He captures the city of Aleppo, and extends his c ... The Ashley Book of Knots, New York: Doubleday, p. Dust jacket, p.286 * Compton, Nic (2013), The Knot Bible, The complete guide to knots and their uses, London: Adlard Coles Nautical, p.66 * Soles, Clyde (2011), Backpacker magazine’s outdoor kno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hitch Knot
A hitch is a type of knot used to secure a rope to an object or another rope. Hitches are used in a variety of situations, including climbing, sailing, and Load securing, securing loads. They are classified based on their ability to be tightened or Knot#Releasability, released, their resistance to Slipping (knot), slipping, and their Knot strength, strength. Some common types of hitch knots include the clove hitch, the timber hitch, and the round turn and two half-hitches. Physical theory A simple mathematical theory of hitches has been proposed by Bayman. It predicts whether or not a hitch will hold, given the diameter of the post, the diameter of the rope, and the coefficient of friction between the post and the rope. The theory has been extended by Maddocks and Keller, including an approximate treatment of knots that are not hitches. For example, they predict that a square knot will hold when the coefficient of friction of the rope with itself is greater than 0.24. These predi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
