Werkzeugmaschinenfabrik Oerlikon-buhrle Ag

Robert Ramseyer

Godwin Ettel

Hanspeter Novet

Ivan Vymazal

Heinz Maeder

The apparatus for measuring the muzzle velocity V.sub.0 of a projectile fired from a weapon enables eliminating the effects of interfering magnetic fields, particularly that of the terrestrial magnetic field. For this purpose the apparatus comprises a shielding arrangement for shielding or screening interfering magnetic fields. Such measuring apparatus contains two induction coils and a support for the attachment thereof which is made of a material of low magnetic permeability. For shielding or screening the interfering magnetic fields there is used a shielding arrangement made of a material of high magnetic permeability. The apparatus is simultaneously constructed as a muzzle brake and is suitable for measuring the muzzle velocity of sabot projectiles.

Apparatus for measuring the muzzle velocity of a projectile fired from a

An ammunition container having at least one compartment in which there is located a loop of a cartridge belt consisting of two adjacently arranged loop portions. The compartment having a rack-like support and recesses or gaps of such support serving for the reception of a respective cartridge of one loop portion of the cartridge belt.

Ammunition container

An actuation mechanism for an automatic firing weapon, the barrel of which can be connected through the agency of a gas removal channel with a compartment of a cylinder, an actuation piston for the cylinder by means of which there can be maintained open the connection of the compartment with the barrel in a starting position of the actuation piston. The actuation piston can be displaced into a rearward position in the cylinder by means of the gases tapped-off via the gas removal channel, and the compartment during the forward movement of the actuation piston can be closed by such actuation piston prior to reaching the starting position for the purpose of damping the piston movement. The compartment filled with gases is closed in the rearmost position of the actuation piston.

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Versoix, Switzerland

Robert Ramseyer