Snaplock

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A snaplock is a type of lock for firing a gun or is a gun fired by such a lock.

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A snaplock ignites the (usually muzzle-loading) weapon's propellant by means of sparks produced when a spring-powered cock strikes a flint down on to a piece of hardened steel. The snaplock is therefore similar to the snaphance (sometimes classed as an advanced type of snaplock) and the later flintlock (see below).

In all snaplocks, the flint is held in a clamp at the end of a bent lever called the cock. When the gun is "cocked", the cock is held back, against the pressure of a spring, by a catch which is part of the trigger mechanism. When the trigger is pulled, the catch is released and the spring moves the cock rapidly forwards. The flint strikes a curved plate of hardened steel, called the "steel". The flint strikes from the steel a shower of white hot steel shavings (sparks) which fall towards the priming powder held in the flash pan. The flash from the pan's ignited primer travels (unless there is only a "flash in the pan") through the touch hole into the firing chamber at the rear of the barrel, and ignites the main charge of gunpowder. [1]

Before the weapon is fired, the pan has a closed cover: the mechanism for opening this cover (i.e. manual or automatic) can affect whether the weapon is classed as a snaplock. In fact, the term snaplock may be used in three ways, as follows:

Period of use

Swedish snaplock gun from the early 16th century Snapplasbossa, 1500-tal - Skoklosters slott - 103605.tif
Swedish snaplock gun from the early 16th century

The origin of this proto-flintlock is unclear. The earliest source which could be speaking of a snaplock is an account from 1515 where a young man in Konstanz, Germany accidentally shot a girl with a pistol, thinking it could not go off due to the lack of a lit match. The pistol in question could be a snaplock but probably was a wheellock. Two years later is the letter-patent of the Emperor Maximilian I, banning the use of self-striking guns which ignite themselves. Dr. Arne Hoff argues that because "striking" is a very inaccurate description of what happens with a wheellock, it is probable that he was referring to a snaplock, thus making 1517 the likely first appearance of the weapon. City regulations from Italian town Ferrara from 1522 and 1634 forbid the carrying of certain firearms which probably are snaplocks and in 1547 a corresponding law in Florence in describing the different locks speak of matchlock, wheellock and a lock with stone and steel. In this cases it is more or less inarguable that the weapons in question are snaplocks. Arsenal accounts from 1547 in Sweden also explicitly mention snaplocks, and continued to do so in 1548 and beyond. The earliest surviving example of a Swedish snaplock is currently held in the Royal Armoury of Stockholm, probably one of a series of snaplock guns made in 1556 from German barrels and Swedish locks. [2]

Compared to a matchlock, the snaplock could fire twice as many shots per minute due to requiring fewer steps to reload. Not requiring a match to be lit also made it easier to handle and more usable in a wider set of environments, such as in damp places. [3]

It was cheap and easy to produce, and like all post-matchlock weapons, could be primed and loaded in advance and be fired at a moment's notice. It fell out of favor by about 1640, except in Sweden and Russia, where it lasted far longer. [4]

Safety

Snaplocks as a class did not have safety devices, but individual models could be prevented from inadvertent firing by different mechanisms:

Regional varieties include the Baltic Lock, the Russian Snaplock, and the Miquelet lock. The Swedish king Gustavus Adolphus had many matchlock muskets converted to snaplocks during his military reforms.

See also

Related Research Articles

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A firearm is any type of gun that uses an explosive charge and is designed to be readily carried and operated by an individual. The term is legally defined further in different countries.

<span class="mw-page-title-main">Percussion cap</span> Ignition source in a type of firearm mechanism

The percussion cap, percussion primer, or caplock, introduced in the early 1820s, is a type of single-use percussion ignition device for muzzle loader firearm locks enabling them to fire reliably in any weather condition. Its invention gave rise to the caplock mechanism or percussion lock system which used percussion caps struck by the hammer to set off the gunpowder charge in rifles and cap and ball firearms. Any firearm using a caplock mechanism is a percussion gun. Any long gun with a cap-lock mechanism and rifled barrel is a percussion rifle. Cap and ball describes cap-lock firearms discharging a single bore-diameter spherical bullet with each shot.

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<span class="mw-page-title-main">Flintlock</span> Firearm with flint-striking ignition

Flintlock is a general term for any firearm that uses a flint-striking ignition mechanism, the first of which appeared in Western Europe in the early 16th century. The term may also apply to a particular form of the mechanism itself, also known as the true flintlock, that was introduced in the early 17th century, and gradually replaced earlier firearm-ignition technologies, such as the matchlock, the wheellock, and the earlier flintlock mechanisms such as the snaplock and snaphaunce.

<span class="mw-page-title-main">Wheellock</span> Firearm action

A wheellock, wheel-lock, or wheel lock is a friction-wheel mechanism which creates a spark that causes a firearm to fire. It was the next major development in firearms technology after the matchlock, and the first self-igniting firearm. Its name is from its rotating steel wheel to provide ignition. Developed in Europe around 1500, it was used alongside the matchlock, the snaplock, the snaphance, and the flintlock.

<span class="mw-page-title-main">Matchlock</span> Firearm mechanism

A matchlock or firelock is a historical type of firearm wherein the gunpowder is ignited by a burning piece of flammable cord or twine that is in contact with the gunpowder through a mechanism that the musketeer activates by pulling a lever or trigger with their finger. This firing mechanism was an improvement over the hand cannon, which lacked a trigger and required the musketeer or an assistant to apply a match directly to the gunpowder by hand. The matchlock mechanism allowed the musketeer to apply the match himself without losing his concentration.

<span class="mw-page-title-main">Snaphance</span> Type of firearm mechanism

A snaphance or snaphaunce is a type of firearm lock in which a flint struck against a striker plate above a steel pan ignites the priming powder which fires the gun. It is the mechanical progression of the wheellock firing mechanism, and along with the miquelet lock and doglock are predecessors of the flintlock mechanism.

<span class="mw-page-title-main">Flintlock mechanism</span> Ignition system for early firearms

The flintlock mechanism is a type of lock used on muskets, rifles, and pistols from the early 17th to the mid-19th century. It is commonly referred to as a "flintlock". The term is also used for the weapons themselves as a whole, and not just the lock mechanism.

<span class="mw-page-title-main">Miquelet lock</span> Type of firearm mechanism

Miquelet lock is a modern term used by collectors and curators for a type of firing mechanism used in muskets and pistols. It is a distinctive form of snaplock, originally as a flint-against-steel ignition form, once prevalent in the Spanish, Portuguese, and Ottoman empires, Italy, Greece, Russia, Ukraine, North Africa, and the Balkans from the late 16th to the mid-19th century.

<span class="mw-page-title-main">Lock (firearm)</span>

The lock of a firearm is the mechanism used to initiate firing. It is generally used as a historical term, referring to such mechanisms used in muzzle-loading and early breech-loading firearms, as modern firearms uniformly fire by use of a firing pin to strike the rear of a cartridge. Side-lock refers to the type of construction, in which the individual components of the mechanism are mounted either side of a single plate. The assembly is then mounted to the stock on the side of the firearm. In modern firearm designs, the mechanism to initiate firing is generally constructed within the frame or receiver of the firearm and is referred to as the firing or trigger mechanism.

<span class="mw-page-title-main">Touch hole</span> Small hole near the rear portion (breech) of a cannon or muzzleloading gun

A touch hole, also known as a cannon vent, is a small hole at the rear (breech) portion of the barrel of a muzzleloading gun or cannon. The hole provides external access of an ignition spark into the breech chamber of the barrel, either with a slow match (matchlock), a linstock or a flash pan ignited by some type of pyrite- (wheellock) or flint-based gunlock, which will initiate the combustion of the main gunpowder charge. Without touch hole, it would be nearly impossible to ignite the powder because the only otherwise access into the barrel is from the front via the muzzle, which is obturated by the projectile.

<span class="mw-page-title-main">Flash pan</span> Firearm component

The flash pan or priming pan is a small receptacle for priming powder, found next to the touch hole on muzzle-loading guns. Flash pans are found on gonnes, matchlocks, wheellocks, snaplocks, snaphances, and flintlocks.

<span class="mw-page-title-main">Culverin</span> Early gun; small arm and then a cannon

A culverin was initially an ancestor of the hand-held arquebus, but the term was later used to describe a type of medieval and Renaissance cannon. The word is derived from the antiquated "culuering" and the French "couleuvrine" From its origin as a hand-held weapon it was adapted for use as artillery by the French in the 15th century and for naval use by the English in the 16th century. The culverin as an artillery piece had a long smoothbore gun barrel with a relatively long range and flat trajectory, using solid round shot projectiles with high muzzle velocity.

<span class="mw-page-title-main">Frizzen</span> Piece of flintlock firearms

The frizzen, historically called the "hammer" or the steel, is an L-shaped piece of steel hinged at the front used in flintlock firearms. The frizzen is held in one of two positions, opened or closed, by a leaf spring. When closed, it is positioned over the flash pan so as to enclose a small priming charge of black powder next to the flash hole that is drilled through the barrel into which the main charge has been loaded. When the trigger is pulled, the cock, which holds a shaped piece of flint clamped in a set of jaws with a scrap of leather or thin piece of lead, snaps forward causing the flint to scrape downward along the frizzen's face, throwing it forward into the open position and exposing the priming powder. The flint scraping along the steel causes a shower of sparks to be thrown into the pan, thereby igniting the priming powder therein and sending flames through the touch hole, which in turn ignites the main charge of black powder in the breech of the barrel, driving the projectile out of the muzzle.

<span class="mw-page-title-main">Hammer (firearms)</span> Part of a firearm

The hammer is a part of a firearm that is used to strike the percussion cap/primer, or a separate firing pin, to ignite the propellant and fire the projectile. It is so called because it resembles a hammer in both form and function. The hammer itself is a metal piece that forcefully rotates about a pivot point.

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<span class="mw-page-title-main">Kalthoff repeater</span> 17th century Danish firearm

The Kalthoff repeater was a type of repeating firearm that was designed by members of the Kalthoff family around 1630, and became the first repeating firearm to be brought into military service. At least nineteen gunsmiths are known to have made weapons following the Kalthoff design. Some early Kalthoff guns were wheellocks, but the rest were flintlocks. The capacity varied between 5 and 30 rounds, depending on the style of the magazines. A single forward and back movement of the trigger guard, which could be done in 1–2 seconds, readied the weapon for firing. The caliber of Kalthoff guns generally varied between 0.4–0.8 in (10–20 mm), though 0.3 in (7.6 mm) caliber examples also exist.

<span class="mw-page-title-main">Doglock</span> Type of firearm mechanism

A doglock is a type of lock for firearms that preceded the 'true' flintlock in rifles, muskets, and pistols in the 17th century. Commonly used throughout Europe in the late seventeenth century, it gained popular favor in the British and Dutch military. A doglock carbine was the principal weapon of the harquebusier, the most numerous type of cavalry in the armies of the Thirty Years' War and English Civil War era. Like the snaphance, it was largely supplanted by the flintlock.

<span class="mw-page-title-main">Belton flintlock</span> Musket

The Belton flintlock was a repeating flintlock design using superposed loads, conceived by Philadelphia, Pennsylvania, resident Joseph Belton some time prior to 1777. The musket design was offered by Belton to the newly formed Continental Congress in 1777. Belton wrote that the musket could fire eight rounds with one loading, and that he could support his claims "by experimental proof." Belton failed to sell the musket to Congress, and later was unable to sell the design to the British Army a year after the American Revolution. There are no records that indicate that the gun was ever supplied, and it is uncertain if or how exactly the Belton improvement operated.

In firearms and artillery, the primer is the chemical and/or device responsible for initiating the propellant combustion that will propel the projectiles out of the gun barrel.

References

  1. Heard, Brian J (2013). Forensic Ballistics in Court. Wiley-Blackwell. pp. True Flintlock (Figure 1.0.4). ISBN   978-1-119-96268-7 . Retrieved 2017-12-13.{{cite book}}: |website= ignored (help)
  2. Arne Hoff. “What do we Really Know About the Snaphaunce?”. The American Society of Arms Collectors Bulletin, No. 22, (1970) pp. 11- 18. Transcript.
  3. Michael Charney. "Southeast Asian Warfare, 1300-1900." Page 55.
  4. Blair 1983:67