Soul pipe
The core tube , or core tube , is the part in multi-layer tubes of a barrel weapon that guides the projectile during launch. The inner diameter of the tube corresponds to the caliber of the cannon.
The first cannon barrels were cast in one piece and were drilled to the appropriate caliber after casting . With increasing bullet weight and increasing strength of the propellant charge , the tubes were increasingly stressed. First, the cannon barrel was reinforced by placing glowing metal rings over the barrel during manufacture, in which the propellant charge was later to burn. These contracted when they cooled down and thus gave the pipe an inward tension.
The first cannon barrels were smooth-barreled cannons, which means that the inside of the barrel was completely smooth. With the transition from spherical bullets to long bullets, it became necessary to rotate the bullets around their longitudinal axis, the twist , for stabilization . For this purpose, trains (grooves) with a twist were incorporated into the inner tube.
However, frequent shooting wears the barrel down, the fields become flatter and the caliber larger. Such worn out pipes are called shot out . To each time the complete gun or at least the entire tube scrap having to, you went on to build the cannon of several parts. Such a tube consists of
- a base piece in which the closure is incorporated
- the soul tube, which guides the projectile and sets it in rotation as well
- the jacket tube , which includes the core tube and supports it against bending
literature
- Paul Schmalenbach: The history of the German ship artillery. 3. Edition. Koehler, Herford 1993, ISBN 3-7822-0577-4 .
Individual evidence
- ^ Otto Lueger : Geschützfabrikation in: Lexicon of the entire technology and its auxiliary sciences , Vol. 4 Stuttgart, Leipzig 1906., S. 425-430. [1] on Zeno.org