Breech mechanisms

Details Breech mechanisms Breech mechanisms

F - Mech Eng,Light,Heat,Weapons

41

A

89/25

F41A 3/74 (2006.01)

Patent

CA 2017693

23260-38 ABSTRACT OF THE DISCLOSURE The disclosure relates to a breech mechanism for large- calibre guns such as artillery pieces being characterized by a specifically designed sealing function in the form of an inter- mediate layer between the mechanism breech proper and a seating portion displaceable in relation thereto by the gas pressure in the gun. The seating portion, on being displaced towards the breech, compresses the intermediate layer consisting of an elasti- cally deformable refractory material which, on its deformation, is urged into tight abutment against the rear portion of the gun barrel about the loading space of the gun along a gap between the seating portion and the mechanism breech proper.

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