|
Vulcanized Fibre
Vulcanized fibre or red fibre is a laminated plastic composed of only cellulose. The material is a tough, resilient, hornlike material that is lighter than aluminium, tougher than leather, and stiffer than most thermoplastics. The newer wood-laminating grade of vulcanized fibre is used to strengthen wood laminations used in skis, skateboards, support beams and as a sub-laminate under thin wood veneers. A product very similar to vulcanized fibre is leatheroid. Leatheroid, however, is made using a different chemical process. Since 2004, the scientific community has regained interest in this material due to its renewability and excellent physical properties, giving birth to the field of all-cellulose composites. These composites are all made of a matrix consisting of dissolved or partially dissolved cellulose, and the reinforcement remains cellulose fibres. A variety of solvents other than zinc chloride has been explored, including sodium hydroxide at low temperatures and ionic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washer (hardware)
A washer is a thin plate (typically disk-shaped, but sometimes square) with a hole (typically in the middle) that is normally used to distribute the load of a threaded fastener, such as a bolt or nut. Other uses are as a spacer, spring ( Belleville washer, wave washer), wear pad, preload indicating device, locking device, and to reduce vibration (rubber washer). Washers are usually metal or plastic. High-quality bolted joints require hardened steel washers to prevent the loss of pre-load due to brinelling after the torque is applied. Washers are also important for preventing galvanic corrosion, particularly by insulating steel screws from aluminium surfaces. They may also be used in rotating applications, as a bearing. A ''thrust washer'' is used when a rolling element bearing is not needed either from a cost-performance perspective or due to space restraints. Coatings can be used to reduce wear and friction, either by hardening the surface or by providing a solid lubricant ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bakelite
Polyoxybenzylmethylenglycolanhydride, better known as Bakelite ( ), is a thermosetting phenol formaldehyde resin, formed from a condensation reaction of phenol with formaldehyde. The first plastic made from synthetic components, it was developed by Leo Baekeland in Yonkers, New York in 1907, and patented on December 7, 1909 (). Because of its electrical nonconductivity and heat-resistant properties, it became a great commercial success. It was used in electrical insulators, radio and telephone casings, and such diverse products as kitchenware, jewelry, pipe stems, children's toys, and firearms. The " retro" appeal of old Bakelite products has made them collectible. The creation of a synthetic plastic was revolutionary for the chemical industry, which at the time made most of its income from cloth dyes and explosives. Bakelite's commercial success inspired the industry to develop other synthetic plastics. In recognition of its significance as the world's first commercial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
City Of Tonawanda
Tonawanda (formally ''City of Tonawanda'') is a city in Erie County, New York, United States. The population was 15,130 at the 2010 census. It is at the northern edge of Erie County, south across the Erie Canal ( Tonawanda Creek) from North Tonawanda, east of Grand Island, and north of Buffalo. It is part of the Buffalo-Niagara Falls metropolitan area. History The city's name is from the word ''Tahnawá•teh'' in Tuscarora meaning "confluent stream" Post-Revolutionary War white settlement at Tonawanda began with Henry Anguish, who built a log home in 1808. He added to the hamlet in 1811 with a tavern, both on the south side of Tonawanda Creek where it empties into the Niagara River. The hamlet grew slowly until the opening of the Erie Canal, completed in the course of the creek in 1825. The Town of Tonawanda was incorporated in 1836. The Erie Canal and the railroads that soon followed it provided economic opportunity. By the end of the 19th century, both sides of the can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tonawanda, New York
Tonawanda (formally ''City of Tonawanda'') is a city in Erie County, New York, United States. The population was 15,130 at the 2010 census. It is at the northern edge of Erie County, south across the Erie Canal ( Tonawanda Creek) from North Tonawanda, east of Grand Island, and north of Buffalo. It is part of the Buffalo-Niagara Falls metropolitan area. History The city's name is from the word ''Tahnawá•teh'' in Tuscarora meaning "confluent stream" Post-Revolutionary War white settlement at Tonawanda began with Henry Anguish, who built a log home in 1808. He added to the hamlet in 1811 with a tavern, both on the south side of Tonawanda Creek where it empties into the Niagara River. The hamlet grew slowly until the opening of the Erie Canal, completed in the course of the creek in 1825. The Town of Tonawanda was incorporated in 1836. The Erie Canal and the railroads that soon followed it provided economic opportunity. By the end of the 19th century, both sides of the can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rochester, New Hampshire
Rochester is a city in Strafford County, New Hampshire, United States. The population was 32,492 at the 2020 census. In addition to the downtown area, the city contains the villages of East Rochester, Gonic, and North Rochester. Rochester is home to Skyhaven Airport and part of Baxter Lake. Rochester was one of New Hampshire's fastest growing cities between 2010 and 2020. History Origins Rochester was once inhabited by Abenaki Indians of the Pennacook tribe. They fished, hunted and farmed, moving locations when their agriculture exhausted the soil for growing pumpkins, squash, beans and maize. ''Squanamagonic'' (abbreviated to "Gonic") means "the water of the clay place hill". The town was one of four granted by colonial governor Samuel Shute of Massachusetts and New Hampshire during his brief term. Incorporated in 1722, it was named for his close friend, Laurence Hyde, 1st Earl of Rochester, brother-in-law to King James II. As was customary, tall white pine trees ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Vulcanized Fiber
NVF Company, formerly known as National Vulcanized Fiber, was a private company based in Yorklyn, Delaware. One of its original products, a sheet-like material called Forbon, was commonly used on guitar pickups. NVF also made a product called Yorkite, another vulcanized fibre, that has wood grain printed directly on the material. At one time, the company generated an estimated $42.2 million in sales and had about 550 employees. NVF stopped manufacturing Vulcanized Fibre in Yorklyn after a flood in 2003 damaged the equipment. Corporate offices continued to operate until 2009, when they declared bankruptcy and dissolved the company, including the Kennett Square facility which made Industrial Plastic Laminates. At that point, NVF Company ceased to exist. History The company was formed by the merger of American Vulcanized Fiber Company, the National Fiber and Insulation Company and the Keystone Fiber Company on January 1, 1923. Company president Warren Marshall's 1936 salary was i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Delaware
Delaware ( ) is a state in the Mid-Atlantic region of the United States, bordering Maryland to its south and west; Pennsylvania to its north; and New Jersey and the Atlantic Ocean to its east. The state takes its name from the adjacent Delaware Bay, in turn named after Thomas West, 3rd Baron De La Warr, an English nobleman and Virginia's first colonial governor. Delaware occupies the northeastern portion of the Delmarva Peninsula and some islands and territory within the Delaware River. It is the second-smallest and sixth-least populous state, but also the sixth-most densely populated. Delaware's largest city is Wilmington, while the state capital is Dover, the second-largest city in the state. The state is divided into three counties, having the lowest number of counties of any state; from north to south, they are New Castle County, Kent County, and Sussex County. While the southern two counties have historically been predominantly agricultural, New Castle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piedmont (United States)
The Piedmont is a plateau region located in the Eastern United States. It is situated between the Atlantic coastal plain and the main Appalachian Mountains, stretching from New York in the north to central Alabama in the south. The Piedmont Province is a physiographic province of the larger Appalachian division which consists of the Gettysburg-Newark Lowlands, the Piedmont Upland and the Piedmont Lowlands sections. The Atlantic Seaboard fall line marks the Piedmont's eastern boundary with the Coastal Plain. To the west, it is mostly bounded by the Blue Ridge Mountains, the easternmost range of the main Appalachians. The width of the Piedmont varies, being quite narrow above the Delaware River but nearly 300 miles (475 km) wide in North Carolina. The Piedmont's area is approximately . The French word ''Piedmont'' comes from the it, Piemonte, meaning " foothill", ultimately from Latin "pedemontium", meaning "at the foot of the mountains", similar to the name of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viscose Rayon
Rayon is a semi-synthetic fiber, made from natural sources of regenerated cellulose, such as wood and related agricultural products. It has the same molecular structure as cellulose. It is also called viscose. Many types and grades of viscose fibers and films exist. Some imitate the feel and texture of natural fibers such as silk, wool, cotton, and linen. The types that resemble silk are often called artificial silk. The fibre is used to make textiles for clothing and other purposes. Rayon production involves solubilizing cellulose to allow turning the fibers into required form. Three common ways to solubilize are the cuprammonium process, not in use today, using ammoniacal solutions of copper salts; the viscose process, the most common today, using alkali and carbon sulfide; and the Lyocell process, using amine oxide. The last avoids the neurotoxic carbon sulfide of the viscose process but is also more expensive. Rayon and its variants Rayon is produced by dissolvin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Celluloid
Celluloids are a class of materials produced by mixing nitrocellulose and camphor, often with added dyes and other agents. Once much more common for its use as photographic film before the advent of safer methods, celluloid's common contemporary uses are table tennis balls, musical instruments, combs, office equipment, and guitar picks. History Nitrocellulose Nitrocellulose-based plastics slightly predate celluloid. Collodion, invented in 1848 and used as a wound dressing and an emulsion for photographic plates, is dried to a celluloid like film. Alexander Parkes The first celluloid as a bulk material for forming objects was made in 1855 in Birmingham, England, by Alexander Parkes, who was never able to see his invention reach full fruition, after his firm went bankrupt due to scale-up costs. Parkes patented his discovery as Parkesine in 1862 after realising a solid residue remained after evaporation of the solvent from photographic collodion. Parkes patented it as a cloth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patent
A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an sufficiency of disclosure, enabling disclosure of the invention."A patent is not the grant of a right to make or use or sell. It does not, directly or indirectly, imply any such right. It grants only the right to exclude others. The supposition that a right to make is created by the patent grant is obviously inconsistent with the established distinctions between generic and specific patents, and with the well-known fact that a very considerable portion of the patents granted are in a field covered by a former relatively generic or basic patent, are tributary to such earlier patent, and cannot be practiced unless by license thereunder." – ''Herman v. Youngstown Car Mfg. Co.'', 191 F. 579, 584–85, 112 CCA 185 (6th Cir. 1911) In most countries, patent rights fall under private law ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_in_2002.png "Click for more on -> Viscose Rayon")
