Projectile

A projectile consisting of a contact head having a box-shaped centrally disposed interior charge chamber containing a propellant charge, ports for firing leads and an outer casing therearound, said contact head having connected thereto a screen material canister (3) consisting of a drawn aluminum container having a base (29), a plate (71) located in the bottom of the canister for fastening the canister to the contact head, and aluminum containers (3) being composed of wall (41) which is closed at its top (43) by flanging with an aluminum cover (5), said canister containing a screen material, the outer casing of the contact head having contact rings arranged thereon which are connected via firing leads to a primer capsule, said charge chamber being, gas-tight by virtue of a screw cover at its base and at the firing lead ports by virtue of a sealing agent, for gas-tight closure thereof, the screw cover having rupture discs thereon for the escape of the propellant gas upon ignition, the contact head and canister being securely connected to one another by fastening plate (71), said plate (71) having a chamber therein for containing an expelling charge, said plate having disposed therein, a delayed action fuse assembly which communicates with the contact head and the expelling charge chamber, said expelling charge chamber being shaped so that upon explosion of the charge therein, the forces generated are directed against the screen material and in turn, the cover of the canister which breaks away thus releasing the screen material.

A projectile consisting of a contact head having a box-shaped centrally disposed interior charge chamber containing a propellant charge, ports for firing leads and an outer casing therearound, said contact head having connected thereto a screen material canister (3) consisting of a drawn aluminum container having a base (29), a plate (71) located in the bottom of the canister for fastening the canister to the contact head, and said aluminum container (3) being composed of wall (41) being closed at its top (43) by flanging with an aluminum cover (5), said canister containing a screen material, the outer casing of the contact had having contact rings arranged thereon which are connected via firing leads to a primer capsule, said charge chamber being gas-tight by virtue of a screw cover at its base and at the firing lead ports by virtue of a sealing agent, the screw cover having rupture discs thereon for the escape of the propellant gas upon ignition, the canister having therein a centrally disposed tube-like igniter-destructor unit with an igniter-destructor charge for igniting the screen material contained in the canister and fragmenting the canister wall, the contact head and canister being securely connected to one another by bolts and having disposed between the two, a delayed action fuse assembly which communicates with the igniter-destructor unit and the interior charge chamber;

• wherein the screen material (73) consists of thin combustible lamellae (83) which are circular-shaped and are disposed radially in the canister (3) around the igniter-destructor unit (33) and wherein the lamellae (83) consist of a carrier material (88) with bilaterally applied combustion layers (85) of combustible paste;
• wherein the combustion layer (85) present on the lamellae (83) consists of a combustible paste of red phosphorus and a synthetic material having a weight ratio of 70:30 to 85:15 or boron or boron alloys with a boron content of at least 90 percent by weight and of a synthetic substance having a weight ratio of 70:30 up to 85:15;
• and
• wherein the combustion layer (85) of combustible paste present on the lamellae (83) is provided at least in part with a superficial passivation coat (86).

A projectile consisting of a contact head having a box-shaped centrally disposed interior charge chamber containing a propellant charge, ports for firing leads and an outer casing therearound, said contact head having connected thereto a screen material canister (3) consisting of a drawn aluminum container having a base (29), a plate (71) located in the bottom of the canister for fastening the canister to the contact head, and the aluminum container (3) being composed of a wall (41) being closed at its top (43) by flanging with an aluminum cover (5), said canister containing a screen material, the outer casing of the contact head having contact rings arranged thereon with are connected via firing leads to a primer capsule, said charge chamber being gas-tight by virtue of a screw cover at its base and at the firing lead ports by virtue of a sealing agent, the screw cover having rupture discs thereon for the escape of the propellant gas upon ignition, the canister having therein a centrally disposed tube-like igniter-destructor unit with an igniter-destructor charge for igniting the screen material contained in the canister and fragmenting the canister wall, the contact head and canister being securely connected to one another by bolts and having disposed between the two, a delayed action fuse assembly which communicates with the igniter-destructor unit and the interior charge chamber;

• wherein the screen material (73) consists of thin combustible lamellae (83) which are circular-shaped and are disposed radially in the canister (3) around the igniter-destructor unit (33) and wherein the lamellae (83) consist of a carrier material ((88) with bilaterally applied combustion layers (85) of combustible paste,
• wherein the combustion layer (85) present on the lamellae (83) consists of a combustible paste of red phosphorus and a synthetic material having a weight ratio of 70:30 to 85:15 or boron or boron alloys with a boron content of at least 90 percent by weight and of a synthetic substance having a weight ration of 70:30 up to 85:15;
• wherein the combustible paste of boron or boron alloys and the synthetic substance contain in addition up to 40 percent by weight of an oxidizing constituent, active metal powder or active metal alloy powder;
• and
• wherein the combustible paste of boron and a synthetic substance contain as the active metal powder or active metal alloy powder, manganese powder, zirconium powder, cerium powder, or boron alloy powder.