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Caldwell Machine Gun
The Caldwell machine gun is a machine gun of Australian origin developed by Thomas Frederick Caldwell in 1915. History The Caldwell machine gun was designed by Thomas F. Caldwell of Melbourne, who moved to the United Kingdom to bring his invention to the notice of British Army authorities. The weapon was in appearance similar to the Maxim gun, but came with two barrels, capable of working in conjunction or separately with a discharge of 500 rpm. It used pan magazines containing 104 rounds instead of the belt feed of the Maxim gun, which was prone to jamming. As reported at the time: :"The Caldwell Machine Gun Company's invention of a quick-firing machine gun was recently sent to London in charge of Captain O. H. Moss and the inventor (Mr. T. F. Caldwell). The directors have now received information from their representatives and Messrs. Light and Fulton, solicitors to the company in London, that the gun has been sold, subject to certain conditions, for £5,000 in cash, £1 per gun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Machine Gun
A machine gun is a fully automatic, rifled autoloading firearm designed for sustained direct fire with rifle cartridges. Other automatic firearms such as automatic shotguns and automatic rifles (including assault rifles and battle rifles) are typically designed more for firing short bursts rather than continuous firepower, and are not considered true machine guns. As a class of military kinetic projectile weapon, machine guns are designed to be mainly used as infantry support weapons and generally used when attached to a bipod or tripod, a fixed mount or a heavy weapons platform for stability against recoils. Many machine guns also use belt feeding and open bolt operation, features not normally found on other infantry firearms. Machine guns can be further categorized as light machine guns, medium machine guns, heavy machine guns, general purpose machine guns and squad automatic weapons. Similar automatic firearms of caliber or more are classified as autocannons, rat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melbourne
Melbourne ( ; Boonwurrung/Woiwurrung: ''Narrm'' or ''Naarm'') is the capital and most populous city of the Australian state of Victoria, and the second-most populous city in both Australia and Oceania. Its name generally refers to a metropolitan area known as Greater Melbourne, comprising an urban agglomeration of 31 local municipalities, although the name is also used specifically for the local municipality of City of Melbourne based around its central business area. The metropolis occupies much of the northern and eastern coastlines of Port Phillip Bay and spreads into the Mornington Peninsula, part of West Gippsland, as well as the hinterlands towards the Yarra Valley, the Dandenong and Macedon Ranges. It has a population over 5 million (19% of the population of Australia, as per 2021 census), mostly residing to the east side of the city centre, and its inhabitants are commonly referred to as "Melburnians". The area of Melbourne has been home to Aboriginal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Army
The British Army is the principal land warfare force of the United Kingdom, a part of the British Armed Forces along with the Royal Navy and the Royal Air Force. , the British Army comprises 79,380 regular full-time personnel, 4,090 Gurkhas, and 28,330 volunteer reserve personnel. The modern British Army traces back to 1707, with antecedents in the English Army and Scots Army that were created during the Restoration in 1660. The term ''British Army'' was adopted in 1707 after the Acts of Union between England and Scotland. Members of the British Army swear allegiance to the monarch as their commander-in-chief, but the Bill of Rights of 1689 and Claim of Right Act 1689 require parliamentary consent for the Crown to maintain a peacetime standing army. Therefore, Parliament approves the army by passing an Armed Forces Act at least once every five years. The army is administered by the Ministry of Defence and commanded by the Chief of the General Staff. The Brit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maxim Gun
The Maxim gun is a recoil-operated machine gun invented in 1884 by Hiram Stevens Maxim. It was the first fully automatic machine gun in the world. The Maxim gun has been called "the weapon most associated with imperial conquest" by historian Martin Gilbert, and was heavily used by colonial powers during the "Scramble for Africa". Afterwards, Maxim guns also saw extensive usage by different armies during the Russo-Japanese War, the First and Second World Wars, as well as by insurgent groups in contemporary conflicts. The Maxim gun was greatly influential in the development of machine guns, and it has multiple variants and derivatives. Design The Maxim gun featured one of the earliest recoil-operated firing systems in history. Energy from recoil acting on the breech block is used to eject each spent cartridge and insert the next one. Maxim's earliest designs used a 360-degree rotating cam to reverse the movement of the block, but this was later simplified to a toggle lock. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rounds Per Minute
Round or rounds may refer to: Mathematics and science * The contour of a closed curve or surface with no sharp corners, such as an ellipse, circle, rounded rectangle, cant, or sphere * Rounding, the shortening of a number to reduce the number of significant figures it contains * Round number, a number that ends with one or more zeroes * Roundness (geology), the smoothness of clastic particles * Roundedness, rounding of lips when pronouncing vowels * Labialization, rounding of lips when pronouncing consonants Music * Round (music), a type of musical composition * ''Rounds'' (album), a 2003 album by Four Tet Places * The Round, a defunct theatre in the Ouseburn Valley, Newcastle upon Tyne, England * Round Point, a point on the north coast of King George Island, South Shetland Islands * Grand Rounds Scenic Byway, a parkway system in Minneapolis * Rounds Mountain, a peak in the Taconic Mountains, United States * Round Mountain (other), several places * Round Va ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
303 British
The .303 British (designated as the 303 British by the C.I.P. and SAAMI) or 7.7×56mmR, is a calibre rimmed rifle cartridge. The .303 inch bore diameter is measured between rifling lands as is the common practice in Europe which follows the traditional black powder convention. It was first manufactured in Britain as a stop-gap black powder round put into service in December 1888 for the Lee–Metford rifle. From 1891 the cartridge used smokeless powder which had been the intention from the outset, but the decision on which smokeless powder to adopt had been delayed. It was the standard British and Commonwealth military cartridge for rifles and machine guns from 1889 until the 1950s when it was replaced by the 7.62×51mm NATO. Cartridge specifications The .303 British has 3.64 ml (56 grains H2O) cartridge case capacity. The pronounced tapering exterior shape of the case was designed to promote reliable case feeding and extraction in bolt-action rifles and machine guns a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Machine Guns
This is a list of machine guns and their variants. The tables are sortable. See also *List of firearms *List of multiple-barrel firearms References {{Reflist Machine guns, * Lists of firearms, Machine guns ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Multiple-barrel Firearms
Below is a list of multiple-barrel firearms of all forms from around the world.Small Arms Illustrated, 2010 Pistols Rifles Flare launchers Less lethal Automatic rifles Submachine guns Shotguns Machine guns Grenade launchers See also * Combination gun * Double-barreled shotgun * Lists of weapons * List of firearms * List of assault rifles * List of machine guns * List of pistols * List of semi-automatic pistols * List of revolvers * List of sniper rifles * List of grenade launchers This article lists all forms of grenade launchers around the world, that is to say weapons that launch grenades with more accuracy, a higher velocity and to greater distances than a soldier could.''Small Arms Illustrated'', 2010 Below is the ... References {{reflist multiple barrel Multiple-barrel firearms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Machine Guns Of Australia
A machine is a physical system using power to apply forces and control movement to perform an action. The term is commonly applied to artificial devices, such as those employing engines or motors, but also to natural biological macromolecules, such as molecular machines. Machines can be driven by animals and people, by natural forces such as wind and water, and by chemical, thermal, or electrical power, and include a system of mechanisms that shape the actuator input to achieve a specific application of output forces and movement. They can also include computers and sensors that monitor performance and plan movement, often called mechanical systems. Renaissance natural philosophers identified six simple machines which were the elementary devices that put a load into motion, and calculated the ratio of output force to input force, known today as mechanical advantage. Modern machines are complex systems that consist of structural elements, mechanisms and control compone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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