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An officer’s tool (also known as an A-tool, rex tool, or lock puller) is a forcible entry device used by firefighters and other first responders. Officer’s tools are designed to completely remove cylindrical locks from doors without causing major structural damage, allowing for direct access to the internal locking mechanism.
The camel's mobility combined with the swivel gun's flexibility and heavy firepower made an intimidating military unit, although the cannon's accuracy and range were rather low. The light cannon was also not particularly useful against heavy fortifications. The Dzungar Khanate used camel-mounted miniature cannons in battle.
A swivel gun (or simply swivel) [1] is a small cannon mounted on a swiveling stand or fork which allows a very wide arc of movement. Another type of firearm referred to as a swivel gun was an early flintlock combination gun with two barrels that rotated along their axes to allow the shooter to switch between either the rifled or the smoothbore ...
The jaw opening of an engineer's vise generally equals its jaw width, though it may be wider. An engineer's vise is bolted onto the top surface of a workbench, [5] with the face of the fixed jaw just forward of its front edge. The vise may include other features such as a small anvil on the back of its body. Most engineer's vises have a swivel ...
A Pierrier à boîte was an early type of small wrought iron cannon developed in the early 15th century, and a type of breech-loading swivel gun. It was part of the artillery of France in the Middle Ages, and the artillery of the Middle Ages in general. [1] Perrier is the historical term in English for such weapons, literally a stone thrower.
The Nock volley gun. Henry Nock (1741–1804) was a British inventor and engineer of the Napoleonic period, best known as a gunmaker.Nock produced many innovative weapons including the screwless lock and the seven-barrelled volley gun, although he did not invent the latter despite it commonly being known as the Nock gun.
The classic matchlock gun held a burning slow match in a clamp at the end of a small curved lever known as the serpentine. Upon the pull of a lever (or in later models a trigger) protruding from the bottom of the gun and connected to the serpentine, the clamp dropped down, lowering the smoldering match into the flash pan and igniting the ...