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A modern tail vise. A newer form of tail vise does away with the need of a frame. It uses steel plates for its structure - one steel plate with the nut is mounted on the side of the bench, two others are built into a sliding jaw along with the bench screw. This is a robust design and it's easier to install and adjust than the older style.
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 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 ...
Zamburak (Persian: زنبورک, romanized: zanburak, lit. 'culverin', lit. ' little wasp '), was a specialized form of self-propelled artillery from the early modern period featuring small swivel guns mounted on and fired from camels.
A gun carriage is a frame or a mount that supports the gun barrel of an artillery piece, allowing it to be maneuvered and fired. These platforms often had wheels so that the artillery pieces could be moved more easily. [1] Gun carriages are also used on ships to facilitate the movement and aiming of large cannons and guns. [2]
An anvil for a power hammer is usually supported on a massive anvil block, sometimes weighing over 800 tons for a 12-ton hammer; this again rests on a strong foundation of timber and masonry or concrete. An anvil may have a marking indicating its weight, manufacturer, or place of origin. American-made anvils were often marked in pounds.
Embrasure with 3 angles of fire, Keoti Fort, India A loophole or inverted keyhole embrasure, allowing both arrow fire (through the arrowslit at the top) and small cannon fire through the circular openings, Fort-la-Latte, France Embrasure of Chinese wall Embrasures at Mdina, Malta Embrasure at Atalaya Castle (Spain) Annotated sketch of an Italian battlement