I've been a lurker here for some time but not posted all that much. Actually this is my first post. I've been building a 1/3 scale 1874 gatling gun in.22LR which is based on plans by D&E model drawings and thought I'd share my progress.
I made a fair few parts when I first started the project a few years back, but a change of career meant I didnt have access to metal working machinery for a while. I've now got a bit of a workshop set up in my garage so will endeavour to get further on with the build. I've made a lot of the components and have rough castings of most of the other parts. As I machine the castings, I'm gradually going to start being able to assemble some of my parts together.
I'll get some photos uploaded on here as regularly as I can. This assembly is the crank arm and shaft. The shaft is made of stainless steel with the threads being screw cut.
The arm is made of brass with the straight piece being made from one piece of brass. I had the choice of brazing a round boss onto the straight arm but this would have left a visible soldered joint so I decided to machine it from solid. The straight shaft was pinned onto the stainless shaft.
The handle was turned. I don't recall how it was fitted and I've not got it with me. I think it was pressed in.
I think I would rather that it rotates so may modify this at some stage.
Blueprints and working drawings for guns. A friend and myself are in the process of building two Model of 1876, 45-70 Gatling Guns. We have spent a small fortune on supposely original prints for Gatling Guns.
They are a farce to work with, every set we bought were incomplete, missing pages etc. The prints only show one view, very difficult to interpet with sketchy dimensions. Don't think the 22 cal versions are scaled down fullsize drawings, they are not even close. Our guns are almost 95% done and we would have never gotten that far without the help of a couple on nice guys who built replicas for a living. One guy even took his original gun apart and sent the reciever and internals to us so we could copy parts. Without thier help we would be still stumbling in the dark. It has been a hard road.
The guy who sold us the castings sent us castings that were not even for that Model Gun and they could not be modified to work with what we had. We had to get the right castings from another source. Nice guy, right. I guess what I'm saying is that you have to be careful buying blueprints of guns.
45 70 Gatling Gun Blueprints
A lot is promised but when you get into the build you might need some help. Will post pictures of the gun when finished in a couple of months. A problem with the tripod casting supplier is slowing us down. Hey thanks for your comments. I checked the catalog at the county library and the one book that looked like a must have, by HOLMES, can't be checked out. I will get into some of the others though. I can see that the amateur gunsmithing and building has quite a large following.
The whole thing looks pretty complex. I don't consider myself a gun person though I have a couple pieces. I've been focusing on metalworking and building up my inventory of tools for many years and I think building a gun or two would be a good way to use the knowhow I have aquired.
Thanks kilroy, where would i find the laws that need to be met to build one. I've often thought of trying to design and build several.
I have the ideas in my head and rough sketches but never really went any further.i dont want to break any laws. Google 'National Firearms Act' and 'Gun Control Act'. So long as it has a bore diameter under.50, a minimum overall length of 26', a minimum barrel length of 16' in the case of rifles or 18' in the case with shotguns (and doesn't shoot full auto), you're pretty much good to go. If you do want to make a short barreled shotgun or rifle, you can do so but it will cost you a $200 tax and any subsequent transfers will cost the recipient $200. You cannot make machineguns at all without paying an annual 'Special Occupations Tax' that allows you to make machinegun for demonstration purposes, but you cannot keep them after you surrender your license. Bear in mind there are a few regulations that are quirky.
Reproduction Gatling Gun For Sale
For example, you cannot have a smooth bore pistol without prior approval. This means that if you are building a 'shotgun based' type firearm with a pistol grip and no shoulder stock (Called an 'Any Other Weapon') or even an ordinary handgun without rifling, it must be registered.
Guns that are disguised to look like something else (Knives, pens, celll phones, etc) are also classified as 'any other weapons' and a $200 tax needs to be paid prior to manufacturing (all subsequent transfers will be $5) If you do elect to follow the procedures required for obtaining a 'Special Occupations Tax' that allows you to deal and manufacture machineguns, then transfers are free to you and it doesn't cost you anything to make the guns themselves. Be warned, however, that the Special Occupations Tax is not a tax that allows hobbyists to circumvent paying transfer taxes. ATF will expect you to display clear indicies that you are engaged in the business of selling these guns for profit and as a business, so keep that in mind.
There are a lot of primers about this, but in short, the easiest rule of thumb is that if you can buy it in your local gun store 'over the counter' (ordinary rifles, shotguns and pistols), you can make one barring any local laws prohibiting you from doing so. Hello Jon My name is Jon also. I am sure you are getting hammered about Garling guns. But I am despertly looking for Plans for the 45-70. My sun and I want to build 2, Looking for yoke, castings, and plans we have a pretty complete machine shop as a hobby, and a super sharp son. I am in Electronics for thr railroad. Also web site littlejon.com Under toys forever A few bikes I have built.
Please let me know if you can help us. Thanks for your time Little Jon Jon McClelland Custom Electronics 1940 Ford St. 80401 303-278-6225 Thanks Little Jon.
Further information: Because of infighting within army ordnance, Gatling guns were used by the U.S. Army during the.
A four-gun battery of Model 1895 ten-barrel Gatling guns in, made by, was formed into a separate detachment led. The detachment proved very effective, supporting the advance of American forces at the. Three of the Gatlings with swivel mountings were used with great success against the Spanish defenders. During the American charge up San Juan and Kettle hills, the three guns fired a total of 18,000.30 Army rounds in 8 1/2 minutes (an average of over 700 rounds per minute per gun of continuous fire) against Spanish troop positions along the crest of both hills, wreaking terrible carnage. Despite this remarkable achievement, the Gatling's weight and cumbersome artillery carriage hindered its ability to keep up with infantry forces over difficult ground, particularly in Cuba, where roads were often little more than jungle footpaths.
By this time, the had been issued the modern tripod-mounted using the round, which they employed to defeat the Spanish infantry at the battle of. Basic design. A British 1865 Gatling gun at The Gatling gun operated by a hand-crank mechanism, with six barrels revolving around a central shaft (although some models had as many as ten).
Each barrel fires once per revolution at about the same position. The barrels, a carrier, and a lock cylinder were separate and all mounted on a solid plate revolving around a central shaft, mounted on an oblong fixed frame. Turning the crank rotated the shaft.
The carrier was grooved and the lock cylinder was drilled with holes corresponding to the barrels. The casing was partitioned, and through this opening the barrel shaft was journaled. In front of the casing was a cam with spiral surfaces. The cam imparted a reciprocating motion to the locks when the gun rotated. Also in the casing was a cocking ring with projections to cock and fire the gun. Each barrel had a single lock, working in the lock cylinder on a line with the barrel. The lock cylinder was encased and joined to the frame.
Early models had a fibrous matting stuffed in among the barrels, which could be soaked with water to cool the barrels down. Later models eliminated the matting-filled barrels as being unnecessary. Cartridges, held in a hopper, dropped individually into the grooves of the carrier. The lock was simultaneously forced by the cam to move forward and load the cartridge, and when the cam was at its highest point, the cocking ring freed the lock and fired the cartridge. After the cartridge was fired the continuing action of the cam drew back the lock bringing with it the spent cartridge which then dropped to the ground. The grouped barrel concept had been explored by inventors since the 18th century, but poor engineering and the lack of a made previous designs unsuccessful. The initial Gatling gun design used self-contained, reloadable steel cylinders with a chamber holding a ball and black-powder charge, and a percussion cap on one end.
As the barrels rotated, these steel cylinders dropped into place, were fired, and were then ejected from the gun. The innovative features of the Gatling gun were its independent firing mechanism for each barrel and the simultaneous action of the locks, barrels, carrier and.
The ammunition that Gatling eventually implemented was a style round charged with black powder and primed with a percussion cap. Because self-contained brass cartridges were not yet fully developed and available. The shells were gravity-fed into the breech through a hopper or simple box 'magazine' with an unsprung gravity follower on top of the gun. Each barrel had its own firing mechanism. Despite self-contained brass cartridges replacing the paper cartridge in the 1860s, it wasn't until the Model 1881 that Gatling switched to the 'Bruce'-style feed system (U.S. Patents 247,158 and 343,532) that accepted two rows of cartridges.
While one row was being fed into the gun, the other could be reloaded, thus allowing sustained fire. The final gun required four operators. By 1886, the gun was capable of firing more than 400 rounds per minute. The smallest-caliber gun also had a Broadwell drum feed in place of the curved box of the other guns. The drum, named after L. Broadwell, an agent for Gatling's company, comprised twenty stacks of rounds arranged around a central axis, like the spokes of a wheel, each holding twenty cartridges with the bullet noses oriented toward the central axis.
This invention was patented in U. Ip man 2 movie in hindi torrent download. As each stack emptied, the drum was manually rotated to bring a new stack into use until all 400 rounds had been fired. A more common variant had 240 rounds in twenty stands of fifteen. By 1893, the Gatling was adapted to take the new smokeless cartridge. The new M1893 guns featured six barrels, later increased to ten barrels, and were capable of a maximum (initial) rate of fire of 800–900 rounds per minute, though 600 rpm was recommended for continuous fire.
Gatling later used examples of the M1893 powered by electric motor and belt to drive the crank. Tests demonstrated the electric Gatling could fire bursts of up to 1,500 rpm. The M1893, with minor revisions, became the M1895, and 94 guns were produced for the U.S. Army by Colt.
Four M1895 Gatlings under Lt. Saw considerable combat during the Santiago campaign in Cuba in 1898. The M1895 was designed to accept only the Bruce feeder. All previous models were unpainted, but the M1895 was painted olive drab (O.D.) green, with some parts left. The Model 1900 was very similar to the model 1895, but with only a few components finished in O.D. Army purchased a quantity of M1900s.
All Gatling Models 1895–1903 could be mounted on an armored field carriage. In 1903, the Army converted its M1900 guns in.30 Army to fit the new cartridge (standardized for the M1903 Springfield rifle) as the M1903.
The later M1903-'06 was an M1903 converted to. This conversion was principally carried out at the Army's Springfield Armory arsenal repair shops.
All models of Gatling guns were declared obsolete by the U.S. Military in 1911, after 45 years of service. Development of modern Gatling-type guns.
Main articles: and After the Gatling gun was replaced in service by newer recoil or gas-operated weapons, the approach of using multiple externally powered rotating barrels fell into disuse for many decades. However, some examples were developed during the interwar years, but only existed as prototypes or were rarely used. The concept resurfaced after World War II with the development of the and the. Many other versions of the Gatling gun were built from the late 20th century to the present, the largest of these being the 30mm autocannon. See also. References.
Weight listed for Colt's Model 1877 10-barrel gun, w/o carriage or mount. ^ Parker, John H. (Lt.), The Gatlings At Santiago, Middlesex, UK: Echo Library (reprinted 2006).
Chambers, John W. (II) (2000). The Oxford Companion to American Military History. HighBeam Research Inc. Retrieved 2009-11-24. Gatling, U.S. 36,386 (issued: Nov.
^; Leon Case (1872). Paul Wahl and Don Toppel, The Gatling Gun, Arco Publishing, 1971.
Paul Wahl and Don Toppel, The Gatling Gun, Arco Publishing, 1971, p. Randolph, Captain W. S., 5th US Artillery. (1984).
Cruisers: An Illustrated Design History.:. Civil War Weapons And Equipment by Russ A. Pritchard Jnr. Retrieved 2015-11-03.
^ Emmott, N.W. 'The Devil's Watering Pot' Proceedings September 1972 p. Julia Keller, Mr. Gatling's Terrible Marvel (2008), p. 168-170. Rauch, George v (1 January 1999). Greenwood Publishing Group – via Google Books.
^ Emmott, N.W. 'The Devil's Watering Pot' United States Naval Institute Proceedings September 1972 p.
How To Build A Gatling Gun
Emmott, N.W. 'The Devil's Watering Pot' United States Naval Institute Proceedings September 1972 p. Farwell, Byron (1985).
Google Books. & Company, Inc. Retrieved November 17, 2017. Patrick McSherry.
Retrieved 2015-11-03. Parker, John H. (Lt.), History of the Gatling Gun Detachment, Kansas City, MO: Hudson-Kimberly Publishing Co.
20, 23–32. Parker, John H.: Cranked by hand at its highest speed until the first magazine of ammunition had been emptied, the M1895.30 Gatling Gun had an initial rate of fire of 800–900 rounds per minute.
Ordnance Dept., Handbook of the Gatling Gun, Caliber.30 Models of 1895, 1900, and 1903, Washington, D.C.: Government Printing Office, (1905) p. 21. Wahl and Toppel, 1971, p. 155. (1917).
Washington, D.C.: Government Printing Office. External links Wikimedia Commons has media related to. Randolph, Captain W. S., 5th US Artillery. Gatling gun. improved Gatling gun. revolving battery gun.
improvement in revolving battery guns. feeder for repeating firearms. (Requires QuickTime and not suitable for slow-speed links).
The Model 1874 Gatling gun, sometime known as the Camel Gun, was a much lighter gun than had been made previously. This gun could be carried on pack horses, and fired from a tripod mount, or as one famous advertising engraving showed, from the back of a camel, which gave it the nickname. It is unlikely, however, if the gun was ever used from this mount. This page illustrates the new lock mechanism patented by Richard Gatling in 1872. Links are provided to more information on some of the more successful ammunition hopper mechanisms.
The short 10-barrel Gatling gun of 1874, sometimes referred to as the Camel Gun, was designed to be light enough to be transported on pack horse, or man-ported (or even by camel) and fired from a tripod, cart (or camel). It weighed 135 lbs (61.2 kg). The gun incorporated several features to reduce weight.
Barrel lengths were reduced to 18 inches. The lock cylinder and carrier blocks were cast hollow, and much use was made of brass rather than iron. The key feature was the design of the locks, which had been patented two years before (U.S. 125563, dated 9 April 1872).
The operation of this lock is the main purpose of this page and animation. In previous designs, the locks, one for each barrel, had been driven forward and pulled back by inclined ramps or cams. The firing pin had been cocked by another cam positioned towards the front of the lock chamber. This is illustrated in the animation for the 1865 model. The locks themselves were quite long. Gatling's 1872 patent introduced a lock design that was significantly shorter, and which therefore required a shorter casing, and thus reduced the weight of the gun.
The firing pin runs through the body of the lock, and is fired by pulling back on the knob at the rear of the pin, and then releasing it at the appropriate moment. The lock forward and backward motion is now caused by a lug at the rear of the lock, which rides within 'racetrack' cams that are cast or machined into a stationary part of the gun.
A spring loaded detaining cam is then positioned to capture the firing pin knob. As the assembly continues to rotate, the lock is driven further forwards by the cam tracks, but the firing pin is held back by the Detaining cam and then released to fire the cartridge.
When the gun is in action, there are always five cartridges going through the process of loading, and five in the process of being extracted and these several operations are continuous while the gun is being worked. Thus as long as the gun is being fed with cartridges the several operations of loading, firing and extracting are carried on automatically, uniformly and continuously. Naming the parts The Detaining Cam One of the problems of the early Gatling gun designs that used cocking cams with a significant step, as shown in the, is that if the crank handle were to be turned the wrong way, the tenon on the lock would jam against the step in the cam, and potentially damage either the lock or the cam.
Furthermore, if a lock was damaged, or the firing pin broke, the whole gun would have to be disassembled. The new shorter lock design used in the short 1874 gun was particularly vulnerable to damage to the knob on the end of the firing pin should the handle be turned the wrong way. For this reason, Gatling designed the Detaining cam so that it was spring loaded. With the gun turning in the correct direction, the knobs are captured as they pass and released to fire at a given point.
However, if the gun is turned in the wrong direction, the knob on the lock will push the Detaining cam rearwards. A short animation shows this action. Another innovation included in the 1874 gun is the lock extractor, which was patented in U.S. Patent No.112138, dated 28 Feb 1871.
The crank is turned until markings on the barrel assembly line up with an arrow on the casing. The lock extractor is then turned 90 degrees to unlock it, and it then can be pulled back, bringing with it one of the locks.
The locks can then be replaced or repaired without dismantling the gun, and this can be done in the field. The gun can still be operated with the remaining locks. Ammunition Gatling guns were chambered for a wide range of ammunition, with overseas customers requiring their purchases to be able to fire the locally-made cartridges. The dimensions of the cartridge shown in the animation are taken from the 1872 patent and show a cartridge with a pronounced shoulder, but in practice the guns would have fired the United States issue 45-70-500 cartridge (.45 inch calibre, 70 grains of black powder, lead bullet weight 500 grains). The animation shows the Broadwell drum magazine, which contained 16 columns of 15 cartridges.
The Broadwell drum and other improved magazines are described on the page. The Long 1874 model Gatling gun Gatling also made an 1874 model gun that had 10 32inch barrels and was mounted on an artillery carriage. It is interesting that an illustration of the component parts of this model (G1) show a lock very similar to the 1865 model, this is with a cocking lug cut into the length of the lock, rather than the short lock illustrated above for the short model.
Further confusion arises where (G1) shows the firing cycle for an 1871 model Gatling gun using the short lock design that was patented in April 1872. However, it must be recognised that Patent drawings represent ideas and patent drawings rarely translate into an actual gun. The actual guns as built would combine ideas from previous patents as well as practical engineering experience. Aiming and Scattering. With the Broadwell drum magazine blocking the centreline view, the 1874 guns used a fixed sight at the front of the right-hand frame, and an adjustable tangent sight at the rear of that side. By adjusting the tangent sight's height, the gun could fire to different ranges.
As an illustration, the following range table shows the gun elevation for various ranges. Note that these tables are for the British.45 cartridge with an 85 grain charge and 480 grain bullet, and fired from a 32 inch barrel. The 45-70-500 cartridge fired from a shorter 18 inch barrel would have had different range - elevation characteristics. Range (yards) 100 200 300 400 500 Elevation 9 mins 20 mins 33 mins 48 mins 1 deg 4 mins Range (yards) 800 1000 1500 2000 2400 Elevation 1 deg 54 mins 2 deg 34 mins 4 deg 25 mins 6 deg 32 mins 8 deg 23 mins The short Model 1874 gun mounted on a tripod (or camel) could easily be aimed and trained to cover a wide front if desired. However, once mounted on an artillery carriage the gun was much more constrained.
A training mechanism would be needed. Furthermore the hail of fire put down by a Gatling needed to be distributed across a front. Gatling introduced automatic scattering mechanisms, which automatically adjusted the point of aim as the crank handle was turned. These scattering mechanisms will be described in a separate page.
Comments are closed.
|
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |