Choke assembly for a shotgun
    1.
    发明授权
    Choke assembly for a shotgun 失效
    霰弹枪的扼流组件

    公开(公告)号:US5317825A

    公开(公告)日:1994-06-07

    申请号:US29761

    申请日:1993-03-11

    IPC分类号: F41A21/40 F41H21/40

    CPC分类号: F41A21/40

    摘要: A choke assembly (10) is attachable to the muzzle end of a shotgun barrel (G) to produce a tightened shot pattern when the shotgun is fired. A shotgun shell includes shot (S) and a wading (W). The wading is spun through the barrel by discharge gases created when the shell is fired, and this spinning motion tends to increase the size of the shot pattern. The choke comprises an elongate hollow tube (12) having an inner end (14) receivable in the muzzle end (M) of the barrel. An inner diameter (D1) of the tube corresponds to that of the barrel at its muzzle end. An outer end (24) of the tube extends beyond the muzzle. The inner diameter of the tube decreases from the inner to the outer end of the tube to effect a choke. The outer end of the tube also has a plurality of longitudinally extending slots (28) formed therein, these being spaced circumferentially about the tube. Discharge gases propelling the wading through the barrel tends to force the wading radially outwardly through the slots. This slows the wading and stops its spinning which, in turn, increases the tightness of the shot pattern. Further, a portion of the discharge gases are also expelled radially outwardly through the slots which reduces the recoil of the shotgun.

    摘要翻译: 当霰弹枪被射击时,扼流组件(10)可附接到霰弹枪筒(G)的枪口端,以产生紧固的射击模式。 霰弹枪壳包括射击(S)和涉水(W)。 通过在壳体被烧制时产生的排出气体通过桶旋转牵引,并且这种旋转运动趋于增加喷射图案的尺寸。 扼流器包括细长的中空管(12),其具有可接收在枪管的枪口端(M)中的内端(14)。 管的内径(D1)对应于枪口在其枪口端的直径(D1)。 管的外端(24)延伸超出枪口。 管的内径从管的内部到外端减小以产生扼流圈。 管的外端还具有形成在其中的多个纵向延伸的狭槽(28),这些槽围绕管周向间隔开。 推动通过桶的牵引的排出气体倾向于迫使通过狭槽径向向外的牵引。 这样可以减缓牵引,停止旋转,反过来又会增加拍摄模式的紧张度。 此外,一部分放电气体也通过狭槽径向向外排出,这减少了霰弹枪的反冲。

    Core puller assembly
    2.
    发明授权
    Core puller assembly 失效
    芯拉机总成

    公开(公告)号:US4427355A

    公开(公告)日:1984-01-24

    申请号:US325096

    申请日:1981-11-27

    摘要: This core puller assembly includes a bank of interconnected core puller units each having a cylinder, and a piston mounted within the cylinder and having a rearwardly extending connecting rod. Each core puller unit includes a core puller bar disposed in side-by-side relation below the cylinder and connected to the piston connecting rod for movement with said connecting rod. Each cylinder carries front and rear guide units receiving the core puller bar in sliding relation to guide the core puller bars into the mold assembly.The cylinders are operated by a pneumatic air supply which includes a surge tank and a control system for controlling the supply of pressurized air to the cylinders.

    摘要翻译: 该芯牵引器组件包括一组相互连接的芯牵引器单元,每一组具有一个气缸,一个活塞安装在气缸内并具有向后延伸的连接杆。 每个铁芯牵引单元包括在气缸下面并排设置并连接到活塞连接杆上以与所述连杆一起运动的铁芯牵引杆。 每个气缸承载前和后引导单元,其以滑动关系接收芯牵引杆,以将芯牵引杆引导到模具组件中。 气缸由气动空气供给器,气动空气源包括一个缓冲罐和一个用于控制向气缸供应加压空气的控制系统。

    High and low temperature gas actuated cylinder
    3.
    发明授权
    High and low temperature gas actuated cylinder 失效
    高低温气动缸

    公开(公告)号:US06691607B2

    公开(公告)日:2004-02-17

    申请号:US09997712

    申请日:2001-11-30

    IPC分类号: F01B3100

    摘要: A gas cylinder of the present invention comprises a housing having a tube, a front head and an rear end cap defining a chamber. A pair of ports are provided to allow for the input and exhaust of gas in the chamber. A piston is received in the chamber for axial movement within the chamber and separates the chamber into two cavities. A rod is operatively connected to the piston and extends forwardly from the piston, through a bore in the front head to exit the chamber through the front head. The rod is loosely or floatingly connected to the piston, to be movable relative the piston by a plate at an end of the rod which is trapped in a bore in a forward end of the piston. A piston seal is received in a groove in the piston to form a seal between the piston and the cylinder tube. The piston is flexible and changes shape due to pressure changes within the chamber. A rod seal is also provided between the rod and the front head bore. The rod seal is radially expandable and contractible in response to changes in gas pressure about the rod seal. The sizes of the piston and the cylinder tube, in conjunction with the piston seals allows for the formation of a cushion of gas around at least a portion of the piston; and the piston floats on the gas cushion to facilitate the low friction movement of the piston in the tube without the use of a lubricant.

    摘要翻译: 本发明的气瓶包括具有管,前头和限定腔的后端盖的壳体。 提供一对端口以允许腔室中的气体的输入和排出。 活塞被容纳在腔室中以在腔室内轴向移动,并将腔室分成两个空腔。 杆可操作地连接到活塞并从活塞向前延伸通过前头中的孔,以通过前头离开室。 杆与活塞松动或浮动连接,可以通过在活塞端部的板的活塞相对于活塞移动,该板被限制在活塞前端的孔中。 活塞密封件容纳在活塞的凹槽中以在活塞和气缸管之间形成密封。 活塞是灵活的,并且由于室内的压力变化而改变形状。 杆和前头孔之间还设有杆密封件。 响应于围绕杆密封件的气体压力的变化,杆密封件可径向膨胀和收缩。 活塞和气缸管的尺寸与活塞密封件一起允许在活塞的至少一部分周围形成气垫, 并且活塞浮在气垫上以促进活塞在管中的低摩擦运动,而不使用润滑剂。

    Fluid operated clock
    4.
    发明授权
    Fluid operated clock 失效
    流体操作时钟

    公开(公告)号:US4028877A

    公开(公告)日:1977-06-14

    申请号:US682713

    申请日:1976-05-03

    IPC分类号: G04B1/26 G04B45/00

    CPC分类号: G04B1/26 Y10T137/86413

    摘要: This fluid operated clock comprises a support stand which includes a shaft providing a pivot mounting for an oscillating housing, and which carries a reservoir above the housing for supplying fluid to housing inlet openings. The housing is partitioned to provide outer fluid compartments, having fluid discharge openings, and an intermediate compartment mounting an adjustable balance weight above the pivot center. The housing oscillates between defined limits and includes an actuating pin engageable with a pawl and ratchet assembly to rotate a wheel carried by the shaft and having an indicator ring attached.

    摘要翻译: 这种流体操作的钟表包括支撑架,支撑架包括提供用于摆动壳体的枢轴安装件的轴,并且在壳体上方具有用于将流体供应到壳体入口开口的容器。 壳体被分隔以提供具有流体排放开口的外部流体隔室,以及在枢转中心上方安装可调平衡重的中间隔室。 壳体在限定的限制之间振荡并且包括可与棘爪和棘轮组件接合的致动销,以使由轴承载的轮转动并具有连接的指示环。

    Cushioned shoulder pad for rifle or shotgun
    5.
    发明授权
    Cushioned shoulder pad for rifle or shotgun 失效
    用于步枪或霰弹枪的缓冲肩垫

    公开(公告)号:US5375360A

    公开(公告)日:1994-12-27

    申请号:US53995

    申请日:1993-04-22

    IPC分类号: F41C23/08

    CPC分类号: F41C23/08

    摘要: A recoil pad assembly (10) fitted to the stock of a weapon (W) such as a rifle or shotgun for cushioning a shooter (M) against recoil forces produced when the weapon is discharged. A first pad member (12) is installed on a butt end (E) of the stock (T) of the weapon. A second pad member (14) is pressed against a shoulder (S) of the shooter when the shooter prepares to discharge the weapon. The second pad member interfits with the first pad member for movement of the pad members relative to each other when the weapon is discharged. Compression springs (56) then restore the pad members to their original position relative to each other. A seal is effected between the pad members when the weapon is discharged trapping air between the members. Relative movement of the pad members then compresses the air producing a cushioning effect which lessens the recoil force to which the shooter is subjected.

    摘要翻译: 安装在诸如步枪或霰弹枪的武器(W)的库存上的反冲垫组件(10),用于缓冲射击器(M),以抵抗在武器排放时产生的反冲力。 第一衬垫构件(12)安装在武器的坯料(T)的对接端(E)上。 当射手准备释放武器时,第二衬垫构件(14)被压靠在射手的肩部(S)上。 第二垫构件与第一垫构件相互配合,用于当武器排出时相对于彼此移动。 压缩弹簧(56)然后将衬垫构件相对于彼此恢复到其原始位置。 当武器排出时,在构件之间进行密封,从而在构件之间捕获空气。 衬垫构件的相对运动然后压缩空气,产生减轻射手遭受的反冲力的缓冲效果。

    Actuator switch assembly
    6.
    发明授权
    Actuator switch assembly 失效
    执行器开关总成

    公开(公告)号:US4430533A

    公开(公告)日:1984-02-07

    申请号:US325095

    申请日:1981-11-27

    IPC分类号: H01H13/18 H01H3/16

    CPC分类号: H01H13/18

    摘要: This actuator switch assembly is used in conjunction with a concrete block machine and provides first and second switch portions, each attached to one of the height pins of the concrete block machine. Both switch portions include spring-loaded plungers and one of the portions includes a pair of electrical contacts which are closed by engagement of the plungers when the height bars approach each other.

    摘要翻译: 该致动器开关组件与混凝土块机一起使用,并提供第一和第二开关部分,每个开关部分附接到混凝土块机的一个高度销。 两个开关部分包括弹簧加载的柱塞,并且这些部分中的一个包括一对电触头,当高度杆彼此接近时,它们通过柱塞的接合而闭合。