Search results
Results from the WOW.Com Content Network
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 others.
The first known example of a tumbler lock was found in the ruins of the Palace of Khorsabad built by king Sargon II (721–705 BC.) in Iraq. [1] Basic principles of the pin tumbler lock may date as far back as 2000 BC in Egypt; the lock consisted of a wooden post affixed to the door and a horizontal bolt that slid into the post.
Lock bumping is a trend in burglaries, [10] [11] as the technique can make it easy and fast to break into homes without needing too much special equipment or leaving any trace of forced entry.
Peer's helmet: silver barred-face (tournament) helm placed in profile; Knight's or baronet's helmet: steel helm (earlier jousting helm, later close helm) placed affronté with visor open; Esquire's helmet: steel helm placed in profile with visor closed
The usual meaning of diving helmet is a piece of diving equipment that encases the user's head and delivers breathing gas to the diver, but the term "diving helmet", or "cave diving helmet" may also refer to a safety helmet like a climbing helmet or caving helmet that covers the top and back of the head, but is not sealed. These may be worn ...
The M1 helmet is a combat helmet that was used by the U.S. military from World War II until 1986, when it was succeeded by the PASGT helmet. The M1 helmet has become an icon of the US military, with its design inspiring other militaries around the world.
(ii) Indian pith helmet. The Indian model is almost the same as the French one but with a slightly narrower brim and a squarer dome. It shares with other helmets the ventilation "button" atop the dome. (iii) African pith helmet, or safari helmet, is a variation mainly used in savanna or jungle regions of Africa. It is generally a khaki-grey ...
Salakot is a traditional lightweight headgear from the Philippines commonly used for protection against the sun and rain. Variants occur among ethnic groups, but all are shaped like a dome or cone and can range in size from having very wide brims to being almost helmet-like.