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    • 3. 发明授权
    • Methods of manufacturing a bullet
    • 制造子弹的方法
    • US5131123A
    • 1992-07-21
    • US372992
    • 1989-06-29
    • Randy C. Brooks
    • Randy C. Brooks
    • B21K1/02B21K21/06F42B12/34
    • B21K1/025B21K21/06F42B12/34
    • A bullet is manufactured by providing a slug of metal having an end face and applying an axial force against the end face of sufficient magnitude to form an axially outwardly opening first cavity. Thereafter a second force is applied against the first cavity to reform the first cavity into a second cavity having a peripheral edge of a generally scalloped configuration and an interior surface defining tears of alternating triangular flat faces set-off by edges converging toward a blind end of the cavity. The end portion is then contoured into a generally convex curvature which constricts the scalloped peripheral edge and transforms the triangular faces into radially inwardly directed ribs and alternating lines of weakness which, upon bullet impact, control radial expansion and axial tearing of petals formed during impact which creates maximum hydraulic shock in the absence of fragmentation which in turn ensures humane killing of game.
    • 通过提供具有端面的金属块并且以足够大的尺寸向端面施加轴向力以形成轴向向外开口的第一空腔来制造子弹。 此后,将第二力施加到第一腔体上,以将第一空腔重新形成具有大致扇形构造的周边边缘的第二空腔,以及限定交替的三角形平面的泪液的内表面, 空腔。 然后将端部成形为大致凸起的曲率,该曲率限制扇形周边边缘并将三角形面变换成径向向内的肋和交替的弱线,其在子弹冲击时控制在冲击期间形成的花瓣的径向膨胀和轴向撕裂 在没有碎片的情况下产生最大的液压冲击,从而确保人为地杀死游戏。
    • 10. 发明授权
    • Bullet with reverse taper interlock jacket and method of manufacturing
the bullet
    • 子弹与反锥形互锁夹克及制造子弹的方法
    • US4856160A
    • 1989-08-15
    • US156157
    • 1988-02-16
    • Randall G. HabbeHerman N. Bockstruck
    • Randall G. HabbeHerman N. Bockstruck
    • B21K1/02F42B12/78
    • F42B12/78B21K1/025
    • A reverse taper jacketed bullet has a tubular jacket in the form of a continuous wall defining a cavity and a one-piece core disposed in the jacket cavity. The jacket has opposite heel and mouth portions and an intermediate portion interconnecting the heel and mouth portions. The jacket wall is thicker at the intermediate portion than at either the heel or mouth portion thereof so as to define a reverse taper configuration along the intermediate and heel portions which bulges inwardly at the intermediate portion interior relative to the heel portion interior. The reverse taper configuration provides an inside diameter at the jacket intermediate portion that is less than at the jacket heel portion and in such manner produces a constriction that interlocks the lead core and jacket together. The reverse taper configuration of the jacket wall is formed in final draw step by insertion of a punch having an hour glass shaped or reverse taper configured end portion into an elongated predrawn cup. The final drawing produces a thicker wall at the location of the intermediate portion of the jacket than at the location of the heel or mouth portion thereof. Withdrawal of the punch from the jacket causes the thicker intermediate wall portion to bulge outwardly at the exterior of the jacket. Then, the jacket wall is drawn in to provide a generally uniform outside diameter that causes the thicker intermediate wall portion to bulge inwardly at the interior of the jacket.
    • 反向锥形夹套子弹具有限定空腔形式的连续壁的管状护套和设置在护套腔中的一体式芯。 夹套具有相对的跟部和口部以及将脚后跟部分相互连接的中间部分。 护套壁在中间部分处比在其后跟部分或口部处更厚,以便沿着中间部分和后跟部分限定相对于后跟部分内部在中间部分内部向内凸出的倒锥形构型。 反向锥形构造提供在护套中间部分处的内径小于护套跟部部分处的内径,并且以这种方式产生将引线芯和护套互锁在一起的收缩部。 通过将具有小时玻璃形状或倒锥形构造的端部的冲头插入细长的预抽杯中,在最终拉伸步骤中形成夹套壁的倒锥形构造。 最后的绘图在夹克的中间部分的位置处产生比在其后跟或口部的位置更厚的壁。 从夹套抽出冲头会使较厚的中间壁部分在外套的外部向外凸出。 然后,夹套壁被拉入以提供大致均匀的外径,这导致较厚的中间壁部分在夹套的内部向内凸出。