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Sailmaker
A sailmaker makes and repairs sails for sailboats, kites, hang gliders, wind art, architectural sails, or other structures using sails. A sailmaker typically works on shore in a sail loft; the sail loft has other sailmakers. Large ocean-going sailing ships often had sailmakers in the crew. The sailmaker maintained and repaired sails. This required knowledge of the sailmaker's craft and the tools of the sailmakers loft on shore. Today, one of a sailmaker's important jobs is to teach people how to set and trim their sails to get the most out of them. Sometimes a sailmaker will accompany the client out on the water and adjust the sails. The modern sailmaker uses computer-aided design and manufacturing tools. Computer graphics allow the sailmaker to produce a "lines drawing" of the sail. Once the design is complete, the sailmaker can now use a low-power laser to cut the material to the exact shape. Broadseam CFD Sailmakers have recently started using Computational fluid dynamics ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lowell North
Lowell Orton North (December 2, 1929 – June 2, 2019) was an American sailor and Olympic gold medalist. He competed at the 1968 Summer Olympics in Mexico City, where he received a gold medal in the Star class with the boat ''North Star'', together with Peter Barrett."1968 Summer Olympics – Mexico City, Mexico – Sailing" ''databaseOlympics.com'' (Retrieved on April 18, 2008) Biography North was born in on December 2, 1929. He was the son of Williard North, a geophysicist for oil companies, and Juanita Williams North, a homemaker. When Lowell was young the family moved to Southern Ca ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thimble
A thimble is a small pitted cup worn on the finger that protects it from being pricked or poked by a needle while sewing. The Old English word , the ancestor of thimble, is derived from Old English , the ancestor of the English word ''thumb''. History Pre-17th century As the purpose of a thimble is to prevent discomfort while sewing by providing a barrier between fingertips and the blunt end of a needle, it is likely that the earliest thimbles were created closely following the invention of sewing. According to the United Kingdom Detector Finds Database, thimbles dating to the 10th century have been found in England, and thimbles were in widespread use there by the 14th century. Although there are isolated examples of thimbles made of precious metals—Elizabeth I is said to have given one of her ladies-in-waiting a thimble set with precious stones—the vast majority of metal thimbles were made of brass. Medieval thimbles were either cast brass or made from hammered sheet. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thimble
A thimble is a small pitted cup worn on the finger that protects it from being pricked or poked by a needle while sewing. The Old English word , the ancestor of thimble, is derived from Old English , the ancestor of the English word ''thumb''. History Pre-17th century As the purpose of a thimble is to prevent discomfort while sewing by providing a barrier between fingertips and the blunt end of a needle, it is likely that the earliest thimbles were created closely following the invention of sewing. According to the United Kingdom Detector Finds Database, thimbles dating to the 10th century have been found in England, and thimbles were in widespread use there by the 14th century. Although there are isolated examples of thimbles made of precious metals—Elizabeth I is said to have given one of her ladies-in-waiting a thimble set with precious stones—the vast majority of metal thimbles were made of brass. Medieval thimbles were either cast brass or made from hammered sheet. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Ullman
David Ullman (born 1946) is an international yachtsman, sailboat racer, and sailmaker. Ullman founded Ullman Sails in Newport Beach, California in 1967.Dave Ullman - yachting's elder Statesman (Pt.I) John Curnow, September 12, 2010 He won the in 1977, 1978 and 1980, and the World Championships in 2007. He also won the National Championships in (eight times ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Forten
James Forten (September 2, 1766March 4, 1842) was an African-American abolitionist and wealthy businessman in Philadelphia, Pennsylvania. Born free in the city, he became a sailmaker after the American Revolutionary War. Following an apprenticeship, he became the foreman and bought the sail loft when his boss retired. Based on equipment he himself had developed, he established a highly profitable business. It was located on the busy waterfront of the Delaware River, in an area now called Penn's Landing. James Forten used his wealth and social standing to work for civil rights for African Americans in both the city and nationwide. Beginning in 1817, he opposed the colonization movements, particularly that of the American Colonization Society. He affirmed African Americans' claim to a stake in the United States of America. He persuaded William Lloyd Garrison to adopt an anti-colonization position and helped fund his newspaper '' The Liberator'' (1831–65), frequently publishing let ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sewing Needle
A sewing needle, used for hand-sewing, is a long slender tool with a pointed tip at one end and a hole (or ''eye'') to hold the sewing thread. The earliest needles were made of bone or wood; modern needles are manufactured from high carbon steel wire and are nickel- or 18K gold-plated for corrosion resistance. High quality embroidery needles are plated with two-thirds platinum and one-third titanium alloy. Traditionally, needles have been kept in needle books or needlecases which have become objects of adornment. Sewing needles may also be kept in an étui, a small box that held needles and other items such as scissors, pencils and tweezers. Types of hand sewing needles Hand sewing needles come in a variety of types/classes designed according to their intended use and in a variety of sizes within each type. * Sharp needles: used for general hand sewing; built with a sharp point, a round eye, and are of medium length. Those with a double-eyes are able to carry two strands of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sail Loft Photo D Ramey Logan
A sail is a tensile structure—which is made from fabric or other membrane materials—that uses wind power to propel sailing craft, including sailing ships, sailboats, windsurfers, ice boats, and even sail-powered land vehicles. Sails may be made from a combination of woven materials—including canvas or polyester cloth, laminated membranes or bonded filaments—usually in a three- or four-sided shape. A sail provides propulsive force via a combination of lift and drag, depending on its angle of attack—its angle with respect to the apparent wind. Apparent wind is the air velocity experienced on the moving craft and is the combined effect of the true wind velocity with the velocity of the sailing craft. Angle of attack is often constrained by the sailing craft's orientation to the wind or point of sail. On points of sail where it is possible to align the leading edge of the sail with the apparent wind, the sail may act as an airfoil, generating propulsive force as air pas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sail
A sail is a tensile structure—which is made from fabric or other membrane materials—that uses wind power to propel sailing craft, including sailing ships, sailboats, windsurfers, ice boats, and even sail-powered land vehicles. Sails may be made from a combination of woven materials—including canvas or polyester cloth, laminated membranes or bonded filaments—usually in a three- or four-sided shape. A sail provides propulsive force via a combination of lift and drag, depending on its angle of attack—its angle with respect to the apparent wind. Apparent wind is the air velocity experienced on the moving craft and is the combined effect of the true wind velocity with the velocity of the sailing craft. Angle of attack is often constrained by the sailing craft's orientation to the wind or point of sail. On points of sail where it is possible to align the leading edge of the sail with the apparent wind, the sail may act as an airfoil, generating propulsive force as air p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kite Types
Kites are tethered flying objects which fly by using aerodynamic lift, requiring wind (or towing) for generation of airflow over the lifting surfaces. Various types of kites exist, depending on features such as material, shape, use, or operating skills required. Kites may fly in air, water, or other fluids such as gas and other liquid gaining lift through deflection of the supporting medium. Variations in design of tethering systems and lifting surfaces are regularly introduced, with lifting surfaces varying in stiffness from limp sheet material to fully solid material. Manufacture Kites may be built by the flier or by a dedicated kite manufacturer, which may be a member of the Kite Trade Association International (KTAI), which also includes kite retailers. Materials Kites have been made from the following materials: *Plastic – for example, a Styrofoam-only kite *Organic materials – such as plant leaves and grass *Paper *Textiles such as rip-stop nylon, nylon, or Dacron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sewing Machine
A sewing machine is a machine used to sew fabric and materials together with thread. Sewing machines were invented during the first Industrial Revolution to decrease the amount of manual sewing work performed in clothing companies. Since the invention of the first sewing machine, generally considered to have been the work of Englishman Thomas Saint in 1790, the sewing machine has greatly improved the efficiency and productivity of the clothing industry. Home sewing machines are designed for one person to sew individual items while using a single stitch type at a time. In a modern sewing machine, the process of stitching has been automated so that the fabric easily glides in and out of the machine without the inconvenience of needles, thimbles and other tools used in hand sewing. Early sewing machines were powered by either constantly turning a handle or with a foot-operated treadle mechanism. Electrically-powered machines were later introduced. Industrial sewing machines, by co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seam Rubber
Seam may refer to: Science and technology * Seam (geology), a stratum of coal or mineral that is economically viable; a bed or a distinct layer of vein of rock in other layers of rock * Seam (metallurgy), a metalworking process the joins the ends of two sheet metal edges * Seam (sewing), the line where two or more layers of fabric are held together by stitches. * Seam (unit), various obsolete units of measurement * Can seamer, a machine used to seal a lid to a can body, such as in paint or food cans * JBoss Seam, a Java application framework by JBoss * Seam carving, an image resizing algorithm * Sun Enterprise Authentication Mechanism, or SEAM, an implementation of Kerberos protocol for the Solaris operating system Sports * Quarter seam, a thread on the surface of a cricket ball * Seam bowling, in cricket, refers to bowling with the main seam upright * Seam route, a passing route in football Other uses * Seam (band), an indie rock band from Chicago, Illinois * SEAM, the ICAO air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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