|
Laminated Glass
Laminated glass is a type of safety glass consisting of two or more layers of glass with one or more thin polymer interlayers between them which prevent the glass from breaking into large sharp pieces. Breaking produces a characteristic "spider web" cracking pattern (radial and concentric cracks) when the impact is not enough to completely pierce the glass. Laminated glass is used for architecture, glazing, automobile safety, photovoltaic, UV protection, and artistic expression. The most common use of laminated glass is automobile windshields and skylight glazing. In geographical areas requiring hurricane-resistant construction, laminated glass is often used in exterior storefronts, curtain walls, and windows. Laminated glass is also used to increase the sound insulation rating of a window, because it significantly improves sound attenuation compared to monolithic glass panes of the same thickness. The interlayer is typically of polyvinyl butyral (PVB), ethylene-vinyl ace ... [...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 present-day uses are for manufacturing table tennis balls, musical instruments, combs, office equipment, fountain pen bodies, 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 c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Road Traffic Act 1930
The Road Traffic Act 1930 ( 20 & 21 Geo. 5. c. 43) is an act of the Parliament of the United Kingdom introduced by the Minister of Transport Herbert Morrison. Context The last major legislation on road traffic was the Motor Car Act 1903. Amendments had been discussed in 1905, 1911, 1913 and 1914 as the Motor Car Act (1903) Amendment Bill and Motor Car Act (1903) Amendment (No 2) Bill. Since 1926 in which there were 4,886 fatalities in some 124,000 crashes a detailed set of national statistics (now known as Road Casualties Great Britain) had been collected. It was not until 1929 that a new Road Traffic Bill was discussed in detail following a Royal Commission report on Transport, "The control of traffic on roads," which was adopted almost in its entirety. During a parliamentary debate on making speedometers compulsory in 1932 it was suggested that speed limits for cars were removed by this Act because "the existing speed limit was so universally disobeyed that its maintenance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canada Balsam
Canada balsam, also called Canada turpentine or balsam of fir, is the oleoresin of the balsam fir tree (''Abies balsamea'') of boreal North America. The resin, dissolved in essential oils, is a viscous, sticky, colourless or yellowish liquid that turns to a transparent yellowish mass when the essential oils have been allowed to evaporate. Canada balsam is amorphous when dried. It has poor thermal and solvent resistance. Uses left, Slide of a holotype specimen of a flatworm (''Lethacotyle fijiensis)'' permanently mounted in Canada balsam in 1953 Due to its high optical quality and the similarity of its refractive index to that of crown glass (optics), crown glass (''n'' = 1.52), purified and filtered Canada balsam was traditionally used in optics as an invisible-when-dry glue for glass, such as lens elements. Other optical elements can be cemented with Canada balsam, such as two prisms bonded to form a beam splitter. Canada balsam was also commonly used for making perman ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pittsburgh Plate Glass
PPG Industries, Inc. is an American Fortune 500, ''Fortune'' 500 company and global supplier of paints, coatings, and specialty materials. With headquarters in Pittsburgh, Pennsylvania, PPG operates in more than 70 countries around the globe. By revenue it is the second largest coatings company in the world behind Sherwin-Williams. It is headquartered in PPG Place, an office and retail complex in downtown Pittsburgh, and is known for its glass facade designed by Postmodern architecture, Postmodern architect Philip Johnson. History 19th century Pittsburgh Plate Glass Company was founded in 1883 by John Baptiste Ford, Captain John Baptiste Ford and John Pitcairn, Jr., at Creighton, Pennsylvania. PPG soon became the United States' first commercially successful producer of high-quality, thick flat glass using the plate process. PPG was also the world's first plate glass plant to power its furnaces with locally produced natural gas, an innovation which rapidly stimulated wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DuPont (1802–2017)
Dupont, DuPont, Du Pont, duPont, or du Pont may refer to: People * Dupont (surname), a surname of French origin * Du Pont family, one of the wealthiest families in the United States Companies * DuPont, one of the world's largest chemical companies * Du Pont Motors, a marine engine and automobile manufacturer from 1919 to 1931 * Dupont Brewery, a brewery in Belgium Places in the United States * Dupont, Colorado, an unincorporated community * Du Pont, Georgia, a town * Dupont, Indiana, a town * Dupont, Pointe Coupee Parish, Louisiana, an unincorporated community * Dupont, Ohio, a village * Dupont, Pennsylvania, a borough * Dupont, Tennessee, a community * DuPont, Washington, a city * Dupont, Wisconsin, a town * DuPont State Forest, North Carolina * Fort DuPont, Delaware Transportation * Dupont station, a subway station in Toronto, Canada * DuPont station (Sound Transit), a planned commuter rail station in DuPont, Washington, US * Dupont Circle station, a subway station ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Libbey-Owens-Ford
Libbey-Owens-Ford Company (LOF) was a producer of flat glass for the automotive and building products industries both for original equipment manufacturers and for replacement use. The company's headquarters and main factories were located in Toledo, Ohio, with large float glass plants in Rossford, Ohio, Laurinburg, North Carolina, Ottawa, Illinois, Ottawa, Illinois, Shreveport, Louisiana, and Lathrop, California, Lathrop, California. The company was formed in 1930 by the merger of Libbey-Owens's sheet-glass operation with the Edward Ford Plate Glass Company, both located in Toledo.Syrup Off the Roller: The Libbey-Owens-Ford Company University of Toledo, 2012-01-03. Accessed 2014-01-28. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triplex Safety Glass
Triplex Safety Glass was a British brand of toughened glass and laminated glass. Their marque is often seen on vehicle and aircraft windscreens. History The Triplex Safety Glass Company Ltd was founded in 1912 by Kent-born Reginald Delpech (30 March 1881 - 29 May 1935). The company was established in 1912 to produce laminated windscreens in the UK, under a license from French ''Société du Verre Triplex'' established by French chemist Édouard Bénédictus (1878–1930) who invented laminated glass. On 9 September 1929 Triplex formed a joint venture company with Pilkington in St Helens. The company is now part of Pilkington Automotive. In the 1960s Triplex bought its main competitor British Indestructo Glass, giving it a monopoly in British laminated glass production. In the 1980s, around 1,000 people worked at the Triplex site in St Helens and about 700 at the site in Kings Norton. Pilkington retired the Triplex brand in August 1993. The company was formally dissolved in Se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War I
World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting took place mainly in European theatre of World War I, Europe and the Middle Eastern theatre of World War I, Middle East, as well as in parts of African theatre of World War I, Africa and the Asian and Pacific theatre of World War I, Asia-Pacific, and in Europe was characterised by trench warfare; the widespread use of Artillery of World War I, artillery, machine guns, and Chemical weapons in World War I, chemical weapons (gas); and the introductions of Tanks in World War I, tanks and Aviation in World War I, aircraft. World War I was one of the List of wars by death toll, deadliest conflicts in history, resulting in an estimated World War I casualties, 10 million military dead and more than 20 million wounded, plus some 10 million civilian de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gas Mask
A gas mask is a piece of personal protective equipment used to protect the wearer from inhaling airborne pollutants and toxic gases. The mask forms a sealed cover over the nose and mouth, but may also cover the eyes and other vulnerable soft tissues of the face. Most gas masks are also respirators, though the word ''gas mask'' is often used to refer to military equipment (such as a field protective mask), the scope used in this article. Gas masks only protect the user from ingesting or inhaling chemical agents, as well as preventing contact with the user's eyes (many chemical agents affect through eye contact). Most combined gas mask filters will last around 8 hours in a biological or chemical situation. Filters against specific chemical agents can last up to 20 hours. Airborne toxic materials may be gaseous (for example, chlorine or mustard gas), or particulates (such as biological warfare, biological agents). Many filters provide protection from both types. The first gas m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traffic Collision
A traffic collision, also known as a motor vehicle collision, or car crash, occurs when a vehicle collides with another vehicle, pedestrian, animal, road debris, or other moving or stationary obstruction, such as a tree, pole or building. Traffic collisions often result in injury, disability, death, and property damage as well as financial costs to both society and the individuals involved. Road transport is statistically the most dangerous situation people deal with on a daily basis, but casualty figures from such incidents attract less media attention than other, less frequent types of tragedy. The commonly used term car accident is increasingly falling out of favor with many government departments and organizations: the Associated Press style guide recommends caution before using the term and the National Union of Journalists advises against it in their Road Collision Reporting Guidelines. Some collisions are intentional vehicle-ramming attacks, staged crashes, vehicu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Composite Material
A composite or composite material (also composition material) is a material which is produced from two or more constituent materials. These constituent materials have notably dissimilar chemical or physical properties and are merged to create a material with properties unlike the individual elements. Within the finished structure, the individual elements remain separate and distinct, distinguishing composites from mixtures and solid solutions. Composite materials with more than one distinct layer are called ''composite laminates''. Typical engineered composite materials are made up of a binding agent forming the ''matrix'' and a Filler (materials), filler material (particulates or fibres) giving ''substance'', e.g.: * Concrete, reinforced concrete and masonry with cement, lime or Mortar (masonry), mortar (which is itself a composite material) as a binder * Composite wood such as glulam and plywood with wood glue as a binder * Reinforced plastics, such as fiberglass and fibre-rein ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
