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The men-yoroi, which covered all or part of the face, provided a way to secure the top-heavy kabuto (helmet). The Shinobi-no-o (chin cord) of the kabuto would be tied under the chin. [ 4 ] Small hooks called ori-kugi or posts called odome located on various places would help secure the chin cord.
A diver in a pool wearing an AGA full face mask A diver wearing an Ocean Reef full face mask Head protection helmet for use with Ocean Reef full face diving mask. A full-face diving mask is a type of diving mask that seals the whole of the diver's face from the water and contains a mouthpiece, demand valve or constant flow gas supply that provides the diver with breathing gas. [1]
The enclosed helmet was created by adding a face-protecting plate, pierced for sight and breathing, and by extending downwards the back and sides of a flat-topped helmet, to produce a cylindrical helm. [4] From the evidence of extant contemporary illustrations the face protection was added first, probably as an extension of the pre-existing nasal.
These may be worn with a full-face mask or half mask to provide impact protection when diving under an overhead, and may also be used to mount lights and video cameras. [3] [4] An alternative to the diving helmet that allows communication with the surface is the full-face diving mask. These cover most of the diver's face, specifically including ...
A World War I British P Helmet, c. 1915 Zelinsky–Kummant protivogaz, designed in 1915, was one of the first modern-type full-head protection gas masks with a detachable filter and eyelet glasses, shown here worn by U.S. Army soldier (USAWC photo) Indian muleteers and mule wearing gas masks, France, February 21, 1940 A Polish SzM-41M KF gas mask, used from the 1950s through to the 1980s
Full face and open face motorcycle helmets. ... Corinthian helmet with detachable horns, circa 650 BCE. Corinthian helmet, 500 BCE. Greek Chalcidian helmet, ...