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This 'vent sealing' name remained part of British nomenclature, rather than a clearer name of 'primer' or 'firing' tubes, as used elesewhere. [2] Friction T-tube, British Mk IV of 1914. The common friction primer is a copper tube, packed with powder, having at the upper end a short branch (called a nib piece) at right angles.
Removing the spent primer from (decapping) these cases requires the use of a special tool because the primer anvil (on which the primer compound is crushed) is an integral part of the case and the case, therefore, does not have a central hole through which a decapping tool can push the primer out from the inside, as is done with Boxer primers.
The ACP Board is an international team of [chess] professionals united by the main aims of the organization: to protect the rights of all the actors in the chess society as well as to promote the game of chess worldwide. All members of the ACP have the right to be elected as well as to vote for the candidates of the ACP Board.
In firearms and artillery, the primer (/ ˈ p r aɪ m ər /) is the chemical and/or device responsible for initiating the propellant combustion that will propel the projectiles out of the gun barrel.
Primer manufacture and insertion is the most dangerous part of small arms ammunition production. Sensitive priming compounds have claimed many lives including the founder of the famous British Eley ammunition firm. Modern commercial operations use protective shielding between operators and manufacturing equipment. [22]
The .25 ACP was designed because .25-caliber was the smallest John Browning could go while still retaining a centerfire primer pocket, which would be more reliable for self-defense than rimfire primers. As such, the .25 ACP allows for a very compact and lightweight gun, usually a semi-automatic pocket pistol. [4]
Nano seed priming in botany and agriculture is a form of seed planting preparation in which the seeds are pre-soaked in nanoparticle solution. Seeds are considered to be an important part of crop life cycle as it influences the propagation of critical phases like germination and dormancy.
Priming is a condition in the boiler of a steam locomotive in which water is carried over into the steam delivery. It may be caused by impurities in the water, which foams up as it boils, or simply too high a water level.