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Grapeshot used fewer but larger projectiles than were contained within canister or shrapnel shells. [1] Case shot broadly describes any multi-projectile artillery ammunition. The canister round is known as a case, so canister was sometimes called case shot and the term has confusingly become generic for grapeshot and shrapnel shells. [1]
A hermetic seal is any type of sealing that makes a given object airtight (preventing the passage of air, oxygen, or other gases). The term originally applied to airtight glass containers but, as technology advanced, it applied to a larger category of materials, including metals, rubber, and plastics. Hermetic seals are essential to the correct ...
CLE Canisters displayed at the Royal Air Force Museum Cosford, along with a Corgi lightweight, folding motorcycle that could be carried inside one (2010). The CLE Canister, or CLE Container was a standardized cylindrical container used by the British during World War II to airdrop supplies to troops on the ground.
In the period before the Civil War, a U.S. Army light artillery battery was organized with four M1841 6-pounder field guns and two M1841 12-pounder howitzers. [1] The field gun fired solid iron cannon balls in a flat trajectory to smash its targets [2] while the howitzer was designed to lob hollow shells into massed formations or fortifications. [3]
A carbon dioxide scrubber. A carbon dioxide scrubber is a piece of equipment that absorbs carbon dioxide (CO 2).It is used to treat exhaust gases from industrial plants or from exhaled air in life support systems such as rebreathers or in spacecraft, submersible craft or airtight chambers.
The 20-pounder Parrott rifle fired case shot (shrapnel), shell, and canister shot. The use of bolts (solid shot) was rare and it was usually not provided in the ammunition chests. Firing a shell without a fuse would achieve the same result as firing a solid shot from a rifled gun. [15] Parrott ammunition was designed to be used.
High altitude breathing apparatus is used for unpressurised (ambient pressure) aeronautical and mountaineering activities where the oxygen content of the natural atmosphere is insufficient for maintaining physical activity, consciousness, or life, but the atmospheric pressure is sufficient that a pressure suit is not needed.
Induction sealing is the process of bonding thermoplastic materials by induction heating.This involves controlled heating an electrically conducting object (usually aluminum foil) by electromagnetic induction, through heat generated in the object by eddy currents.