Abstract: A seeding heart for a single-grain seeding machine comprising a seeding disc rotatable in a rotational direction (R) with a large number of seeding holes distributed concentrically with respect to the seeding disc along at least one seeding hole circle and at least one agitator shaft for the movement of the seed, said agitator shaft being disposed in a holding section for holding the seed on the seeding holes of the seeding disc, characterised in that the agitator shaft is constituted replaceable in a modular manner. A single-grain seeding machine including the seeding heart.

Abstract: Sowing heart for a single-grain sowing machine comprising: a sowing disk rotatable in a rotational direction R, the sowing disk having at least two sowing hole series, arranged concentrically to the sowing disk, with sowing holes, a receiving area for receiving seed at the sowing holes and a dispensing area for dispensing seed, in front of the dispensing area, a wiping device is provided for singulating seed at the sowing holes during the operation of the sowing heart, which has a first wiping element for the first sowing hole series and a second wiping element for the second sowing hole series, whereby the wiping elements are coupled and are designed to be adjustable with respect to one another. In addition, the invention relates to a single-grain sowing machine with a considerable number of sowing aggregates, in each case with an above-mentioned sowing heart and a corresponding wiping device.

Abstract: A seeding heart for a single-grain seeding machine comprising a seeding disc rotatable in a rotational direction (R) with a large number of seeding holes distributed concentrically with respect to the seeding disc along at least one seeding hole circle and at least one agitator shaft for the movement of the seed, said agitator shaft being disposed in a holding section for holding the seed on the seeding holes of the seeding disc, characterised in that the agitator shaft is constituted replaceable in a modular manner. Furthermore, the present invention relates to a seeding heart and a single-grain seeding machine.

Abstract: Sowing heart for a single-grain sowing machine comprising: a sowing disk rotatable in a rotational direction R, the sowing disk having at least two sowing hole series, arranged concentrically to the sowing disk, with sowing holes, a receiving area for receiving seed at the sowing holes and a dispensing area for dispensing seed, in front of the dispensing area, a wiping device is provided for singulating seed at the sowing holes during the operation of the sowing heart, which has a first wiping element for the first sowing hole series and a second wiping elementfor the second sowing hole series, whereby the wiping elements are coupled and are designed to be adjustable with respect to one another. In addition, the invention relates to a single-grain sowing machine with a considerable number of sowing aggregates, in each case with an above-mentioned sowing heart and a corresponding wiping device.

Abstract: A gun barrel with a gun barrel liner and a breech ring, which are joined with each other by a bayonet thread. A continuous cavity is left between adjacent bayonet ridges of the gun barrel liner and the bayonet ridges of the breech ring that are located axially behind them or in front of them. A locking segment is inserted in at least one of the cavities that is formed in the installed gun barrel liner between adjacent bayonet ridges of the gun barrel liner and the bayonet ridges of the breech ring to prevent unintentional detachment of the gun barrel liner from the breech ring. The locking segment can completely fill the corresponding cavity.

Abstract: A gun barrel with a gun barrel liner and a breech ring, which are joined with each other by a bayonet thread. A continuous cavity is left between adjacent bayonet ridges of the gun barrel liner and the bayonet ridges of the breech ring that are located axially behind them or in front of them. A locking segment is inserted in at least one of the cavities that is formed in the installed gun barrel liner between adjacent bayonet ridges of the gun barrel liner and the bayonet ridges of the breech ring to prevent unintentional detachment of the gun barrel liner from the breech ring. The locking segment can completely fill the corresponding cavity.