![]() ![]() Then mark the lines shown in picture 6 on the arrow trough. Once it is dry, sand it so all the layers line up smoothly without rough or uneven edges. Clamp these together or stack weights on them while the glue dries. Then line up the magazine walls and spacers and glue them together (see pictures for position if it is not obvious to you). ![]() Sand the bottom edge of the front magazine spacer ("L" shaped one) so it is rounded concave. For this step you will also need white glue, clamps (or weights), and idealy a dremmel tool or similar rotary sanding tool (but a round file, knife, or even coarse sand paper can work). , November 3, 2010.Get all the magazine parts (on the plans they are labeled magazine walls, magazine spacers, and arrow trough. ^ βάλλω, Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseus Digital Library.Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseus Digital Library ^ πολυβόλος, Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseus Digital Library.^ Philo of Byzantium, "Belopoeica", 73.34.^ a b Werner Soedel, Vernard Foley (March 1979).Repeating and Multi-Fire Weapons: A History from the Zhuge Crossbow Through the AK-47. However, the machine MythBusters built was prone to breakdowns that had to be fixed multiple times. In 2010 a MythBusters episode was dedicated to building and testing a replica, and concluded that its existence as a historical weapon was plausible. The repetition provides the weapon's name, in Greek πολυβόλος, "throwing many missiles", from πολύς ( polys), "multiple, many" and -βόλος ( -bolos) "thrower", in turn from βάλλω ( ballo), "to throw, to hurl", literally a repeating weapon. Upon the bolt being fired, the process is repeated. This one causes the claws to disengage the drawstring and automatically fires the loaded bolt. As the windlass is rotated further back to the very back end, the claws on the mensa meets another lug like the one that pushed the claws into catching the string. With the drawstring pulled back and a bolt loaded on the mensa, the polybolos is ready to be fired. At the same time, a round wooden pole in the bottom of the magazine is rotated via a spiral groove being driven by a rivet attached to the sliding mensa dropping a single bolt from a carved notch in the rotating pole. Once the string is held firm by the trigger mechanism, the windlass is then rotated clockwise pulling the mensa back and drawing the bow string with it. ![]() At the very front, a metal lug at the front trigger the latching claws into catching the drawstring. When loading a new bolt and spanning the drawstring, the windlass is rotated counterclockwise by an operator standing on the left side of the weapon this drives the mensa forward towards the bow string. ![]() The mensa itself was a sliding plank (similar to that on the gastraphetes) containing the claw latches used to pull back the drawstring and was attached to the chain link. The mechanism is unique in that it is driven by a flat-link chain connected to a windlass. The polybolos would have differed from an ordinary ballista in that it had a wooden hopper magazine, capable of holding several dozen bolts, that was positioned over the mensa (the cradle that holds the bolt prior to firing). Philo left a detailed description of the gears that powered its chain drive (the oldest known application of such a mechanism ) and that placed bolt after bolt into its firing slot. 220 BC) encountered and described a weapon similar to the polybolos, a catapult that could fire again and again without a need for manual reloading. The polybolos was not a crossbow since it used a torsion mechanism, drawing its power from twisted sinew-bundles. The polybolos (the name means "multi-thrower" in Greek ) was an ancient Greek repeating ballista, reputedly invented by Dionysius of Alexandria (a 3rd-century BC Greek engineer at the Rhodes arsenal, ) and used in antiquity. Arsenal of ancient mechanical artillery in the Saalburg, Germany left: polybolos reconstruction by the German engineer Erwin Schramm (1856–1935) ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |