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Author
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Topic: canon limber
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Dru
Member
Member # 180
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posted 07-11-2001 05:38 PM
I have a 15th century canon that I made and am reasonably happy with considering it is my first. However, I would like to make a limber to tow it around with the eventual aim of having a horse doing the towing. Does anyone know of an existing limber or some good art that shows details. I have a woodcut that shows a wagon train with canons on limbers being pulled by horses, but there is absolutely no detail.Thanks -------------------- Dru Shoemaker www.medievalshoes.com
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Fire Stryker
Admin & Advocatus Diaboli
Member # 2
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posted 07-11-2001 05:57 PM
Hi Dru, there are quite a few diagrams in Die Burgunderbuete of a gun carriage but no medieval limbers.Jenn [ 07-11-2001: Message edited by: Fire Stryker ] -------------------- ad finem fidelis
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chef de chambre
Admin & Advocatus Diaboli
Member # 4
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posted 07-11-2001 11:21 PM
Hi Dru,I was impressed with your piece. What wood id you make the carriage out of ? One thing that you can improve as your finances allow is the wheels. The spokes on gun carriages, even at this early date flare out from the hub to the rim, making it look like a shalloe truncated cone if you look at it from the top or front. The iron tires on Late Medieval pices seem to have been heavy, with re-enforces set at regular intervals. "D.B." has quite a few plans of Burgundian guns, and the carriages thery are on, but there are some troubles with using them for references. I believe one or two may be on very old carriages, possibly close copies of the originals. Maybe one is original to the tube if I remember aright - I need to go back and look in detail. All the guns I believe have been remounted at some point, doing service as the Swiss train of artillery for nearly a hundred years after their capture in 1476/77. The trouble is to my knowledge there are no surviving Medieval limbers. I think the earliest good illustrations of them are early 16th century, and what they show is in essence similar to what all European armies used until the end of the 18th century, which is an axle with a pintle and two wheels smaller than the carriage guns. The primary difference between limbers and later ones used on guns the size of yours is the horse teams tend to be shown drawing in sigle file, instead of abreast. I bet one horse can pull your gun (I don't know what it weighs in at), but two or three would look best. As for evidence to their being proper limbers for the guns, I point to Charles the Bolds written report regarding the Battle outside of Neuss, where he refers to them being drawn into action, unlimering, firing, moving, firing again, and retireing. We aren't talking Civil War era limbers, and batteries of Napoleons springing into action, biut we are talking about guns capable of being moved about a battlefield. -------------------- Bob R.
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Dave Key
Member
Member # 17
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posted 07-12-2001 08:26 AM
A regards the limber ... there are a few surviving illustrations of designs for gun limbers, and a few illustrations of them in use. I'll try to fish out the Mss and try to borrow a scanner. However the majority are late C15th german and are of a fairly standard form. (This is from memory so bear with me). There is a cross bar which forms the axle for the two wheels (I think they are slightly smaller than those of the carriage, even 2 spokes less). On top of this is a single beam set at right-angles. Aboiut 3/4 of the beam is to the front, 1/4 to the rear of the axle. About halfway down the beam it is split (with a lashing at this point) and the two halves spread so they cross the axle near the ends (obviously far enough in so the wheels don't catch). To hold the spread an additional piece of wood is inserted into each end (mortice & tenon joint) of the beam so that it sits parallel to the axle. The overall effect is a shallow curved A. Towards the front of the central beam a cross beam is added with the fittings for the horses. In these smaller gun carriage limbers there are often two horses in tandem rather than in line,As regards the carriages. To the best of my knowledge there are no surviving carriages or limbers. As regards your carriage. Personally I'd prefer it heavier and larger. The gun I designed for the White Company many years ago (it's illustrated in the Medieval Soldier by Gerry Embleton & John Howse ... its the one with a rope over the barrel and not in use) has a 3" bore which is more in line (or smaller) than the size of gun I'd expect for a carriage of this style. Also the axle looks like a iron rod, I think the majority were likely to have been woodden axles, again this means more weight. The tyres on the wheels are probably still straked at this time. i.e. a series of small metal plates riveted at alternate intervals to the fellows on the wheels. e.g. 12 spokes = 6 fellows & 6 strakes. rather than a single iron tyre. Wheels could be dished but straight were still in use, personally I'd keep with dished. This is dredging the memory a bit so sorry it's a bit sparse. Cheers Dave
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Dru
Member
Member # 180
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posted 07-15-2001 09:21 PM
In actual point, the carriage and the manner in which the wheels are attached are all deterimined by the wheels. I had to make a few adjustments because of both funds and transportability. I do live fire this piece with a one pound lead ball and am looking forward to participating in a canon shooting competition.I found the wheels brand new for $200.00US for the pair. For good ofset wheels designed and made for gun carriages I would be looking at close to 1000.00 each. This would be with a one piece tire and not strakes. Also, I have to be able to load and unload this piece myself. I wanted to avoid having to haul and store a trailer, so this piece can be disassembled and, while I don't really like to, I can and do lift the tiller with the barrel by myself and can assemble and disassemble the piece alone. The iron bar used for the axle was necessitated by the diameter of the holes in the wheels. While probably not sturdy enough for a cross country march, it is sufficient to get around at events and has been towed over a good dirt road over a mile to be fired before. Also, as I said, I have done extensive live firing with it. As an aside, the mould that I have for casting the balls just happens to be the same size as a golf ball. They fly quite well, are cheap and readily available and don't require any work from me to make. Just don't fire them at anything that is too close. They also have a tendancy to bounce, and 100 yards is not out of the question. I speak from harrowing experience. Thanks -------------------- Dru Shoemaker www.medievalshoes.com
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Dru
Member
Member # 180
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posted 07-16-2001 11:18 AM
Because of safety concerns and the fact that I am standing right next to it when it goes off, I chose not to use a period method of construction. The tube is made of 1.75" ID/3.5" OD seamless steel tubing. Mine was breached in a machine shop using a press to fit a +.005 plug that was pinned and welded. In the future I will have the breech plug tapped, screwed in and welded.You don't want to use anything that is not seamless. It is widely available through large steel suppliers and in several sizes. When the machine shop was done, I welded on the bands to give the appearance of a hoop gun and drilled the touch hole. If you are serious about making your own canon and firing it, I would reccomend "The Complete Canoneer." It deals with pretty much all of the issues of owning, making and firing a modern canon, though it is obviously focussed primarily on American Civil War, it does address the subject in a general enough way to be useful to any gunner. -------------------- Dru Shoemaker www.medievalshoes.com
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chef de chambre
Admin & Advocatus Diaboli
Member # 4
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posted 07-16-2001 05:35 PM
Hi Dru,Not to worry, we have more artillerists in Wolfe Argent per capita than your average concentration. Good ones too! Pieter was an artillerist for real, and comes from a long line of artillerists. His Great etc uncle was the Commandant of the Orange free state artillery prior to the Boer war.  We have a heck of a lot of black powder arillerists as well. Well drilled, by the book, and even a liscensed cannoneer. Our battery (5th Mass - those of us in, or formerly with it) has had nary an accident related to the guns in the 37 years of it's existance, and we compete live fire as well. -------------------- Bob R.
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chef de chambre
Admin & Advocatus Diaboli
Member # 4
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posted 10-26-2001 09:17 AM
Hi Reinhardt,I don't see why you couldn't make a very nice non-fireing cannon to use as a nice big prop. If for some bizzare reason you wanted to undergo the expense of shipping it to the States for an event I certainly wouldn't object, so long as with any other prop we use it closely resembles what it ought. Jeff Johnson has a theory that the bigger and shinier the prop, the better the reproduction should be because it will attract a lot of attention. A cannon will attract a lot of attention. God knows you can't help draconian laws that won't even allow you to fire a blank charge. On the other hand, you could use it as an excust to make a true barrel stave tube or wrought iron of several layers, and fill the cracks with lead - just like the real deal with earlier field guns of the 15th century. It will never be fired, so it could afford to be completely authentic. -------------------- Bob R.
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Dru
Member
Member # 180
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posted 10-26-2001 11:34 AM
Here is a picture of me cleaning the piece. Understand that Arizona is a desert and doesn't resemble Europe at all.  [ 10-26-2001: Message edited by: Dru ] -------------------- Dru Shoemaker www.medievalshoes.com
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