The barrel of the weapon

 

(57) Abstract:

The invention relates to weapons technology and can be used in forensics. The essence of the invention: in the proposed trunk coated, which is transferred to the side surface of the bullet during its passing through the channel of the barrel when fired. The combination of chemical substances in the coating composition can be delivered in-one correspondence individual registration number of weapons, which can be determined by methods of qualitative chemical analysis on the surface of the bullet and the surfaces with which the bullet in contact after the shot. The invention allows to enhance identification of weapons, including in the absence of bullets, using the bullet scar in contact with a surface.

The invention relate to weapons technology, namely the trunks of small arms, and can be used in forensics.

Famous barrel containing marking elements, leaving the shot on the pool traces that can be identified as the individual number of weapons (1).

The disadvantage of this weapon is that it does not allow identific is there only traces of bullets, but the bullet is missing (ricochet, a through hole).

The essence of the invention is that the proposed trunk as marking elements of the coating applied to the side surface of the bullet as it passes through the channel of the barrel when fired. The coating materials should have good wear resistance and to remain on the surface of the bore during the entire service life of the barrel, but at the same time, should be transferred to the side surface of the bullet as it passes through the channel of the barrel when fired. As the coating can be used, rare earth metals, platinum group metals and other chemical substances and compounds. The presence of these substances and/or compounds should clearly be identified by the methods of qualitative chemical analysis. At the contact of the bullet with an obstacle (ricochet, the through hole) of the substance and/or compound coatings should be transferred to the surface of the obstacles. In smooth-bore weapons traces of these coatings will remain on the pool, buckshot, shot, shot container, wads and gaskets.

The combination of these substances and/or compounds can be delivered in-one correspondence private reen binary code, each element of the cover is mapped to a specific category of binary code. The presence of elements in the coating composition means the presence in the corresponding category code combination unit, and the absence of zero. The total number of possible code combinations is 2nwhere n is the number of elements involved in the encoding.

When n=20 220=1'048'576.

Literature

1. U.S. patent N4175346, November 1979.

The barrel containing the marking elements, leaving on the surface of the bullet traces to identify individual registration numbers of weapons, characterized in that the marking elements used in the coatings, which enable their implementation in the side surface of the bullet during its passage through the channel of the barrel when shot and having the possibility of their detection methods of qualitative chemical analysis on the surface of the bullet, and on surfaces in contact with the bullet after firing.

 

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