There is a drnurse holding his face together with his hands and a bunch of foreign talking. It is split all the way down the middle, from his chin to his forehead. Then the movie cuts to the hospital where you can see his face. Guy Splits His Face Open Diving Video Movie Cuts To.2.6 Attachment of breathing gas supply componentsThe full-face mask provides breathing gas to the diver, and an air space to facilitate underwater vision. 2.5.2 Internal oro-nasal breathing mask They are relatively rarely used in recreational diving. Full-face diving masks are often used in professional diving. With a force of 84,000 civilian, military and contract support personnel, NAVSEA engineers, builds, buys and maintains the Navy's ships and submarines and their combat systems.Full-face masks can be more secure than breathing from an independent mouthpiece if the diver becomes unconscious or suffers an oxygen toxicity convulsion, the diver can continue to breathe from the mask, unlike a scuba mouthpiece which is normally gripped between the teeth. Navy's five system commands.Two basic configurations are in common use: Those with a soft elastomer skirt which seals around the periphery of the face, and those with a rigid frame supporting the other components, which is sealed to the face by a soft foam ring which is clamped to the frame by a metal band, to which the straps are secured (band mask) Faceplate or lenses The faceplate, viewport, or lens is a transparent window, usually flat, which encloses an air space in front of the diver's eyes and allows the eyes to focus correctly underwater.Several shapes have been used for faceplates and lenses: Additional components may include communications equipment, lights, alternative breathing gas connections, and a means to defog the interior surface of the faceplate. Construction The older Royal Navy Clearance Diver's and British SBS frogman's Admiralty Pattern full-face mask with a big front window and a mouthpiece inside made by Siebe GormanA full-face mask consists of a transparent faceplate (lenses, or window) through which the diver can see, a connection to a source of breathing gas, a means of removing any water which may get inside, some facility for the diver to block the nose to equalise the ears, a means of sealing these components to the diver's face and preventing ingress of water and a means of securing the assembly to the diver's head. Most full-face masks have an open circuit demand gas supply, but free-flow and closed circuit applications also exist and models used in commercial diving may be normally demand supplied, but with a free-flow option selectable by the diver. However, some models have a mouthpiece isolating the breathing gas supply from the rest of the interior of the mask, or have a divided interior, and the main air space must then be equalised during descent by exhaling through the nose.
Man Splits Face Open Diving Video Movie Cuts ToIn some older masks, small separate lenses, like some gasmasks. Rectangular with the ends of the sides bent back for better sideways visibility, as in the Admiralty Pattern full-face mask made by Siebe Gorman and used on the Siebe Gorman CDBA. Some of DESCO's fullface mask windows were egg-shaped (wider above). Triangular with rounded corners, in some Siebe Gorman fullface masks intended for use with an aqualung set, and in the "Jack Browne" band masks made by DESCO for rebreather, open circuit demand, and free-flow applications. Oval, in some early British frogman's rebreathers. There is usually a plastic frame which supports the faceplate (or lenses) and a demand valve, but in some cases the lenses and demand valve or rebreather mouthpiece may be attached independently to the rubber mask structure, which is integral with the skirt. Two methods are used.The soft skirted full-face mask is the more common arrangement, and is generally considerably lighter and more compact than the more sturdy and rigid band masks. The rubber moulding which incorporates the skirt seal may also be sufficiently stiff in places to partially perform this function (Cressi-sub, Scubapro), and the faceplate may also be structural (Dräger Panorama, Ocean Reef Neptune, Aga Divator).The frame supporting the functional components must be sealed around the face to maintain a leak free internal air space over the eyes, nose, and mouth. Most full-face masks use a rigid frame for this purpose, which directly or indirectly connects the components together and holds the assembly in shape (Kirby Morgan Exo, Supermask and bandmasks, John Browne nask). Frame A structural component is needed to connect all the working parts together and hold the mask in shape. Diving helmet windows had been of glass for a long time, but a rigid helmet supported by the corselet resting on the shoulders can carry glass much thicker, stronger, and heavier than a mask strapped over the face and supported by the neck. Straps A system of three to five straps is used to secure the mask to the diver's head. It provides greater security and protection to the diver than a soft-skirted full-face mask, and is lighter and quicker to fit than a helmet.Most band-masks are fitted with demand systems for gas supply, but can be operated in free-flow mode. A band mask is generally heavier and more cumbersome to fit than a soft skirted mask, and is not as easily fitted without assistance. Where a hood is included, it may have a zipper up the back for ease of fitting, and the spider is secured over the hood. A face seal and in some cases a neoprene hood is clamped on by the metal band, which may have several buttons protruding, onto which the straps of the spider are fastened to secure the mask to the diver's head. The frame may be of metal (often brass), a strong engineering plastic, or a fibre reinforced resin composite. This is most appropriate to free flow systems.In this arrangement the diver can talk clearly, including talking with other divers underwater. Internal layout Four types of internal layout can be distinguished.The simplest arrangement is a single interior space, with no subdivisions, and no mouthpiece. This strap system is more secure than a single double-ended half-mask strap, however, a full-face mask is far more difficult to replace underwater, if dislodged, than a half-mask. The straps may pass through quick-adjust buckles attached to the mask skirt, or may have holes to hook onto the buttons of a band mask. It is usually a rubber component comprising a group of straps radiating from a central patch or ring, which rests against the back of the diver's head, low enough to resist slipping off over the top. Cheap photoshop cs5 for macInternal oro-nasal breathing mask With a small ( oro-nasal) breathing mask enclosing the mouth and nose inside the full-face mask, the dead space is considerably reduced, but the smaller space around the mouth increases the distortion of speech. The cost is high noise level and very inefficient air usage on some models. Free flow air supply overcomes these problems by providing so much air that the mask is constantly flushed. If an open plan full-face mask floods underwater, it can be more difficult to clear than with a mouthpiece.There also is the problem of " dead space" inside some masks causing risk of carbon dioxide retention. For many years British armed forces divers used the Admiralty Pattern full face mask, with a long rectangular window, largely flat, and bent back 90° at the ends, as in the illustration of a diver with a CDBA rebreather. It makes clear talking difficult, but not impossible. Many Royal Navy and frogman's rebreathers have this mask arrangement.
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