To the extent possible under law, the Text Creation Partnership has waived all copyright and related or neighboring rights to this keyboarded and encoded edition of the work described above, according to the terms of the CC0 1.0 Public Domain Dedication (http://creativecommons.org/publicdomain/zero/1.0/). This waiver does not extend to any page images or other supplementary files associated with this work, which may be protected by copyright or other license restrictions. Please go to http://www.textcreationpartnership.org/ for more information.
1. * 1.1ACANNON is a long round Body, either of Brass, or Iron, formed and made hollow by Art, and proportion, to offend afar off, with a Ball of Iron, Stone, or any Artificial Substance, charged with Gun-Powder, in its charged Cilin∣der, which being fired, in an instant performs
its desired Effect. This Machine was invented by* 1.2 an Englishman, and first put in practice by the Venetians against the Ge∣noveses at Chiezza, Anno 1376.
2. The Superficies of the Mettal, is the out∣side round about the Piece.
3. The Body is the Substance of the whole Mass of Mettal.
4. The Chase is the Concavity of the Piece, in which they put the Charge.
5. the Muzzel is the Extremity of the Chase by which you load, and unload the Piece.
6. The Calibre is AB the Diameter of the* 1.3 Muzzel or Mouth.
7. The Touch-hole, is that little vent, which passeth from the Convex Superficies, to the very Chamber of the Piece, made to give fire to the Powder within as C, that which encloseth the Extremity of the Chase about the Touch-hole is called the Breech or Coyl.
8. The Cascabel is the Pammel at the Breech or Coyl as D.
The Trunnions, are pieces of Metal fixed unto the Exterior Superficies of the Gun on which he moves in the Carriage as E, E.
The Body of the Piece, is that which is com∣prehended betwixt the Center of the Trunnions and the Cascable EG.* 1.4
The Vacant Cylinder, is comprehended betwixt the Cent: of the Trunnions & the Muzzel as EB.
The Frees, or Muzzel Ring is that thick Cor∣nish which, incompasseth the Convex Superficies of the Piece at I, The Base Ring is KLG, The Reinforced Ring is M, The Trunnion Ring is N, and the Cornish Ring is O.
The Line of the Cylinder, is a direct line ima∣gined to be described along the Chase Parallel unto the middle of the Chase as XZ.
The Line of Metal, is a line touching both* 1.5 Cornishes, as MNI.
The Dispart line of the Piece, is the difference betwixt the Semidiameter of the Muzzel, and Base Ring as the line IH.
The Vent of the Piece is the difference betwixt the Diameter of the Shot, and the Mouth of the Piece, as e d.
The Chamber, or Charged Cylinder, is that part of the Chase towards the Touch-hole equally large, nor narrower in one place than in ano∣ther, and doth contain the Powder and Ball.
Defin.
This Military Engine Bombarda, Gun, Can∣non, &c. So called from Bombo, a resounding Noise, Cannone, or Can∣non, from the likeness it holds with his Canna, Bore, or Concavity; Ar∣tigleria, from Artiglio, the Talons, or Claws of Ravenous Fowls, because its shot flying afar off tears and defaces all that it doth meet; from whence some Natures of this Machine are called Smeriglii, long winged Hawks, Falconi, Falconets; Passa volanti, swift flying Arrows, &c.
Fig. 91.
Fig. 91.
Fig. 91.