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    • 6. 发明授权
    • Last shot bolt hold-open device
    • 最后一杆螺栓保持开启装置
    • US4455919A
    • 1984-06-26
    • US374033
    • 1982-05-03
    • William E. OsborneNicholas A. Ketre
    • William E. OsborneNicholas A. Ketre
    • F41A9/18F41A17/38F41D9/00
    • F41A9/18F41A17/38
    • Action disabling device in a firearm having among its conventional components a spring-closed breech bolt, a tubular magazine, and a pivoted cartridge lifter. The disabling device is in the form of an operating arm pivoted with one end to a fixed part of the action so as to be swingable with its other end into active and inactive positions in which the same is in and out, respectively, of the closing path of the breech bolt, and is normally spring-urged into its inactive position, with this operating arm being, on overtravel of the lifter in lift direction for lack of a cartridge thereon, engaged and taken along by the lifter into its active position to stop the breech bolt on partial closure of the same. The operating arm is one of the arms of a double-arm lever the other arm of which projects to the outside of the receiver and is there accessible to an operator's finger for swinging the operating arm to its inactive position.
    • 在其常规部件中具有弹簧关闭的后膛螺栓,管状仓和枢转的盒式升降器的枪支中的动作禁用装置。 禁用装置为操作臂的形式,其一端枢转到动作的固定部分,以便能够以其另一端摆动进入主动和非活动位置,其中相同的位置和位置分别为关闭 并且通常是弹簧推动到其不起作用的位置,该操作臂在提升方向上超过提升器的行程,因为在其上没有一个卡盘,从而被提升器接合并被提升器带到其主动位置 停止后膛螺栓部分关闭。 操作臂是双臂杆的一个臂,其另一个臂突出到接收器的外部,并且操作者的手指可操作地将操作臂摆动到其不起作用的位置。
    • 8. 发明授权
    • Loading mechanisms for guns
    • 装载机器人
    • US3690216A
    • 1972-09-12
    • US3690216D
    • 1968-08-22
    • SECR DEFENCE BRIT
    • BRINT NORMAN TREYOR
    • F41A9/32F41D9/00
    • F41A9/32
    • A feed mechanism for an automatic gun in which a feed tray is moved transversely of the gun axis, to deliver a round, by a pinion carrying an eccentrically located member engaging in a guideway carried by the tray; which pinion is actuated by a rack moved axially against a spring, by the gun during its run-out after recoil; the rack being then disengaged from the gun whereafter the mechanism is returned to its initial position by the action of the spring. A rammer claw, carried at the end of an arm rotatable about a shaft above and parallel to the gun axis, is moved to and fro between a ramming and a receiving position by means of a pinion carried on the shaft and actuated by rack teeth carried on a sliding member operated in a similar manner to, but out of phase with, the feed tray.
    • 一种用于自动喷枪的进给机构,其中进给托盘横向于所述喷枪轴线移动,以便由携带位于所述托盘所承载的导槽中的偏心定位部件的小齿轮传送圆形; 该小齿轮由靠近弹簧轴向移动的齿条驱动,在反冲期间其弹出期间由该枪驱动; 然后机架从枪脱开,之后机构通过弹簧的作用返回到其初始位置。 携带在可绕轴上方并且平行于枪轴线转动的臂的端部的夯锤爪借助于承载在轴上的小齿轮并且由承载的齿条齿致动而在夯锤和接收位置之间来回移动 在与进给托盘类似的方式操作的滑动构件上,但是与进给托盘不同相的操作。