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A welding helmet in use. A welding helmet is a piece of personal protective equipment used by welders to protect the user from concentrated light and flying particles. . Different welding processes need stronger lens shades with auto-darkening filters, while goggles suffice for
The OR-201 helmet was developed in the early 1970s by the Israeli private firm Orlite Engineering Company (now Orlite Industries Ltd) of Ness Ziona near Tel-Aviv, and is the direct result of experience acquired with the steel types – the British Brodie helmet Mark II/Mark III, RAC Mk II modified helmet with chin web jump harness (used by paratroopers and similar to the HSAT Mk II/Mk III ...
Soviet soldiers in SSh-40 helmets at 1945 Victory Parade. The SSh-40 was the most commonly seen in-service helmet used by the Soviet Union during World War II. [citation needed] The only external difference between the SSh-39 and the SSh-40 was the six rivets near the bottom of the helmet, as opposed to the three near the top of the SSh-39 shell.
Photokeratitis or ultraviolet keratitis is a painful eye condition caused by exposure of insufficiently protected eyes to the ultraviolet (UV) rays from either natural (e.g. intense direct or reflected sunlight) or artificial (e.g. the electric arc during welding) sources. Photokeratitis is akin to a sunburn of the cornea and conjunctiva.
The Vought XF5U "Flying Flapjack" was an experimental U.S. Navy fighter aircraft designed by Charles H. Zimmerman for Vought during World War II.This unorthodox design consisted of a flat, somewhat disc-shaped body (resembling a flying flapjack/pancake, hence its nickname) serving as the lifting surface. [1]
The kettle hat had an advantage over some other types of helmet, in that it did not interfere with the wearer's vision, hearing or breathing. [3] Hat-shaped helmets were not just a European invention. Japanese Ashigaru infantrymen wore the jingasa, a helmet shaped like the Japanese form of the Asian conical hat.