Abstract: A thermal insulation jacket for a gun barrel, especially a cannon barrel, where the thermal insulation jacket includes a metal jacket that surrounds the gun barrel. In order to prevent uneven heating of the surface of the gun barrel within the thermal insulation jacket, an additional area that is especially effective at reflecting thermal radiation is provided on the inner surface of the metal jacket that lies opposite the underside of the gun barrel, so that when the gun barrel heats, the temperature differences between the upper side and the underside of the gun barrel are at least partially compensated. For this purpose, a reflective film is provided as the area that is a good reflector of thermal radiation. This reflective film is adhesively attached to the metal jacket.

Abstract: A thermal insulation jacket for a gun barrel, especially a cannon barrel, where the thermal insulation jacket includes a metal jacket that surrounds the gun barrel. In order to prevent uneven heating of the surface of the gun barrel within the thermal insulation jacket, an additional area that is especially effective at reflecting thermal radiation is provided on the inner surface of the metal jacket that lies opposite the underside of the gun barrel, so that when the gun barrel heats, the temperature differences between the upper side and the underside of the gun barrel are at least partially compensated. For this purpose, a reflective film is provided as the area that is a good reflector of thermal radiation. This reflective film is adhesively attached to the metal jacket.

Abstract: The invention concerns a sliding block breech mechanism for a cannon with a breech ring arranged at the rear end of a cannon barrel and with a sliding breech block that slides perpendicularly to the longitudinal axis of the cannon barrel in a cavity of the breech ring. To achieve an improved distribution of force inside the breech ring when the cannon is fired compared to previously known sliding block breech mechanisms and thus to optimize the maximum stress load, the invention proposes to provide a sliding block breech mechanism whose sliding breech block has at least two lugs arranged axially one behind the other, wherein the pressure flanks of the first lugs, i.e., the lugs closer to the cannon barrel, have a positive direction of inclination, and the pressure flanks of the second lugs have a negative direction of inclination.

Abstract: A gun in which the gun barrel (2) is seated to be axially displaced in a cradle barrel. To avoid a lifting effect of the gun barrel (2) upon firing, and omit the necessity of complicated guide grooves in the cradle barrel (3) and tabs on the gun barrel (2), an elastically deformable, first slide-bushing bearing (5) is provided at the muzzle end of the cradle barrel, and a second slide-bushing bearing (6) with a predetermined amount of fit play is provided at the breech-ring end of the cradle barrel 3.

Abstract: A gun in which the gun barrel (2) is seated to be axially displaced in a cradle barrel. To avoid a lifting effect of the gun barrel (2) upon firing, and omit the necessity of complicated guide grooves in the cradle barrel (3) and tabs on the gun barrel (2), an elastically deformable, first slide-bushing bearing (5) is provided at the muzzle end of the cradle barrel, and a second slide-bushing bearing (6) with a predetermined amount of fit play is provided at the breech-ring end of the cradle barrel 3.