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Shallow Water Helmet
A diving helmet is a rigid head enclosure with a breathing gas supply used in underwater diving. They are worn mainly by professional divers engaged in surface-supplied diving, though some models can be used with scuba equipment. The upper part of the helmet, known colloquially as the ''hat'' or ''bonnet'', may be sealed directly to the diver using a ''neck dam'', connected to a diving suit by a lower part, known as a ''breastplate'', or ''corselet'', depending on regional language preferences. or simply rest on the diver's shoulders, with an open bottom, for shallow water use. The helmet isolates the diver's head from the water, allows the diver to see clearly underwater, provides the diver with breathing gas, protects the diver's head when doing heavy or dangerous work, and usually provides voice communications with the surface (and possibly other divers). If a helmeted diver becomes unconscious but is still breathing, most helmets will remain in place and continue to deliver ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USSR
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national republics; in practice, both its government and its economy were highly centralized until its final years. It was a one-party state governed by the Communist Party of the Soviet Union, with the city of Moscow serving as its capital as well as that of its largest and most populous republic: the Russian SFSR. Other major cities included Leningrad (Russian SFSR), Kiev ( Ukrainian SSR), Minsk ( Byelorussian SSR), Tashkent (Uzbek SSR), Alma-Ata (Kazakh SSR), and Novosibirsk (Russian SFSR). It was the largest country in the world, covering over and spanning eleven time zones. The country's roots lay in the October Revolution of 1917, when the Bolsheviks, under the leadership of Vladimir Lenin, overthrew the Russian Provisional Gove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standard Diving Dress
Standard diving dress, also known as hard-hat or copper hat equipment, deep sea diving suit or heavy gear, is a type of diving suit that was formerly used for all relatively deep underwater work that required more than breath-hold duration, which included marine salvage, civil engineering, pearl shell diving and other commercial diving work, and similar naval diving applications. Standard diving dress has largely been superseded by lighter and more comfortable equipment. Standard diving dress consists of a diving helmet made from copper and brass or bronze, clamped over a watertight gasket to a waterproofed canvas suit, an air hose from a surface-supplied manually operated pump or low pressure breathing air compressor, a diving knife, and weights to counteract buoyancy, generally on the chest, back and shoes. Later models were equipped with a diver's telephone for voice communications with the surface. The term ''deep sea diving'' was used to distinguish diving with this equi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spithead
Spithead is an area of the Solent and a roadstead off Gilkicker Point in Hampshire, England. It is protected from all winds except those from the southeast. It receives its name from the Spit, a sandbank stretching south from the Hampshire shore for . Spithead is long by about in average breadth. Spithead has been strongly defended since 1864 by four Solent Forts, which complement the Fortifications of Portsmouth. The Fleet Review is a British tradition that usually takes place at Spithead, where the monarch reviews the massed Royal Navy. The Spithead mutiny occurred in 1797 in the Royal Navy fleet at anchor at Spithead. It is also the location where sank in 1782 with the loss of more than 800 lives. In popular culture In the operetta ''H.M.S. Pinafore'' by Gilbert and Sullivan Gilbert and Sullivan was a Victorian era, Victorian-era theatrical partnership of the dramatist W. S. Gilbert (1836–1911) and the composer Arthur Sullivan (1842–1900), who jointly crea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMS Royal George (1756)
HMS ''Royal George'' was a ship of the line of the Royal Navy. A first-rate with 100 guns on three decks, she was the largest warship in the world at the time of her launch on 18 February 1756. Construction at Woolwich Dockyard had taken ten years. The ship saw immediate service during the Seven Years' War, including the Raid on Rochefort in 1757. She was Admiral Sir Edward Hawke's flagship at the Battle of Quiberon Bay in 1759. The ship was laid up following the conclusion of the war in 1763, but was reactivated in 1777 for the American Revolutionary War. She then served as Rear Admiral Robert Digby's flagship at the Battle of Cape St Vincent in 1780. ''Royal George'' sank on 29 August 1782 whilst anchored at Spithead off Portsmouth. The ship was intentionally rolled so maintenance could be performed on the hull, but the roll became unstable and out of control; the ship took on water and sank. More than 800 people died, making it one of the most deadly maritime disasters i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whitstable
Whitstable () is a town on the north coast of Kent adjoining the convergence of the Swale Estuary and the Greater Thames Estuary in southeastern England, north of Canterbury and west of Herne Bay. The 2011 Census reported a population of 32,100. The town, formerly known as Whitstable-on-Sea, was famous for its 'Native Oysters' which were collected from beds beyond the low water mark from Roman times until the mid-20th century. The annual Whitstable Oyster Festival takes place during the summer. In 1830, one of the earliest passenger railway services was opened by the Canterbury and Whitstable Railway Company. In 1832 the company built a harbour and extended the line to handle coal and other bulk cargos for the City of Canterbury. The railway has closed but the harbour still plays an important role in the town's economy. The railway route, known as The Crab and Winkle Line, is now a cycle path which leads to the neighbouring city of Canterbury. History Archaeological finds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Augustus Siebe
Christian Augustus Siebe (known by his middle name; 1788 – 15 April 1872) was a German-born British engineer chiefly known for his contributions to diving equipment. Contribution to diving In the 1830s the Deane brothers asked Siebe to make a variation of their smoke helmet design for underwater use. Later they turned to him to produce more helmets for diving operations. Expanding on improvements already made by another engineer, George Edwards, Siebe produced his own design; a helmet fitted to a full length watertight canvas diving suit. The real success of the equipment was a valve in the helmet. Colonel Charles Pasley, leader of the Royal Navy team that used Siebe's suit on the wreck of suggested the helmet should be detachable from the corset, giving rise to the typical standard diving dress which revolutionised underwater civil engineering, underwater salvage, commercial diving and naval diving. The company that carried his name Siebe Gorman Ltd was founded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Deane (inventor)
John Deane (1800–1884; known as The ''Infernal Diver''), with his brother Charles, invented the diving helmet and performed diving operations at the wreck of the ''Mary Rose''. They received their education at The Royal Hospital School, Greenwich and were both in attendance in 1812. When he was 14, John joined the East India Company and sailed for seven years. In the 1820s, John was present in England when horses were trapped by fire in a stable. To get through the smoke and fire fumes he put on a medieval knight-in-armour helmet air-pumped by hose from a fire brigade water pump and rescued all the horses. In 1823, he patented a "Smoke Helmet" to be used by firemen in smoke-filled areas; the full title is given as ''"Apparatus or Machines to be worn by Persons entering Rooms or other places filled with Smoke of other Vapour, for the purpose of extinguishing Fire, or extricating Persons or Property therein"''. The apparatus comprised a copper helmet with an attached flexible c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Anthony Deane
Charles Anthony Deane (1796–1848) was a pioneering diving engineer, inventor of the diving helmet. Life Born in Deptford, Charles and his brother John studied at the Greenwich Hospital School for Boys (the former buildings of which are now the National Maritime Museum) to become merchant seamen, going to sea at the age of 14 for a period of 7 years before returning to Deptford. Charles Deane then took up employment as a caulker at Barnard's Shipyard. During this time he realised the problem of fighting fires within the holds of ships. In the 1820s John Deane was present in England when horses were trapped by fire in a stable. To get through the smoke and fire fumes he put on a medieval knight-in-armor helmet air-pumped by hose from a fire brigade water pump, and rescued all the horses.http://scubaeds.com/10.html Scuba Ed's - History of scuba diving In 1823 he patented a "Smoke Helmet" to be used by firemen in smoke-filled areas; the full title is given as ''"Apparatus or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deane Helmet 1842 , which includes Deane as one of the Tribes
{{disambiguation, geo ...
Deane may refer to: Places * Deane, Greater Manchester, an area of Bolton and a former historic parish * Deane, Hampshire, a village * Deane, Kentucky Ships * USS ''Deane'' (1778), US Navy frigate named after Silas Deane * HMS ''Deane'' (K551), a 1943 British Royal Navy frigate which served in the Second World War See also * Deane (name), for people with the name ''Deane'' * Dean (surname) * Dean (other) *Tribes of Galway The Tribes of Galway ( ga, Treibheanna na Gaillimhe) were 14 merchant families who dominated the political, commercial and social life of the city of Galway in western Ireland between the mid-13th and late 19th centuries. They were the families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ear Clearing
Ear clearing or clearing the ears or equalization is any of various maneuvers to equalize the pressure in the middle ear with the outside pressure, by letting air enter along the Eustachian tubes, as this does not always happen automatically when the pressure in the middle ear is lower than the outside pressure. This need can arise in scuba diving, freediving/spearfishing, skydiving, fast descent in an aircraft, fast descent in a mine cage, and being put into pressure in a caisson or similar pressure-bearing structure, or sometimes even simply travelling at fast speeds in an automobile. People who do intense weight lifting, like squats, may experience sudden conductive hearing loss due to air pressure building up inside the ear. They are advised to engage in an ear clearing method to relieve pressure, or pain if any. Methods The ears can be cleared by various methods, some of which pose a distinct risk of barotrauma including perforation of the eardrum: * Yawning which he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dead Space (physiology)
Dead space is the volume of air that is inhaled that does not take part in the gas exchange, because it either remains in the conducting airways or reaches alveoli that are not perfused or poorly perfused. It means that not all the air in each breath is available for the exchange of oxygen and carbon dioxide. Mammals breathe in and out of their lungs, wasting that part of the inhalation which remains in the conducting airways where no gas exchange can occur. Components ''Total dead space'' (also known as physiological dead space) is the sum of the anatomical dead space and the alveolar dead space. Benefits do accrue to a seemingly wasteful design for ventilation that includes dead space. #Carbon dioxide is retained, making a bicarbonate-buffered blood and interstitium possible. #Inspired air is brought to body temperature, increasing the affinity of hemoglobin for oxygen, improving O2 uptake. #Particulate matter is trapped on the mucus that lines the conducting airways, allow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oro-nasal Mask
An orinasal mask, oro-nasal mask or oral-nasal mask is a Breathing mask (other), breathing mask that covers the mouth and the nose only. It may be a complete independent item, as an oxygen mask, or on some anaesthetic apparatuses, or it may be fitted as a component inside a fullface mask on underwater breathing apparatus, a gas mask or an industrial respirator to reduce the amount of Dead space (physiology)#In breathing apparatus), dead space. It may be designed for its lower edge to seal on the front of the lower jaw or to go under the chin. An orinasal mask may carry a air filter, filter for ambient air, or be supplied from a user-carried breathing gas supply or a remote gas supply using a supply hose. Another application is the resuscitation pocket mask, which is used as an infection barrier between the rescuer and a non-breathing casualty for expired air resuscitation. Applications Stand-alone orinasal units *Hyperbaric oxygen provision: The built-in breathing sys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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