| 摘要 |
<p>A gauge adapter for bullets in a break-action shotgun, including a bullet barrel (2) fixed in a plug (3) having the dimensions of the shot cartridge. The adapter includes a pressure means, disposed for pressing the plug (3) solidly against the wall of the transition cone in the shot bore when the fire-arm is closed. The forward part of the plug has a rounded breast (10) against the transition cone, the radius of the breast corresponding to the cylindrical radius of the plug. The breast thus acts in the transition cone as the ball in a ball joint.</p><p>The pressure means can be an elastomeric pressure pad (6) disposed in a practically cylindrical cavity (5) in the rear face (4) of the plug: The pressure pad is outwardly covered by a plate (7) extending up to half the bullet barrel (2) and has a cut-out forthe bullet cartridge. In the area of the cartridge rim the plate (7) has a depression for engaging under the rim of the cartridge. When the fire-arm is opened, the plate acts as a shell extractor so that the shell can be gripped and taken out with the aid of a finger nail.</p> |
