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1. 发明申请

WO1995028595A1 PIPE RESTRAINT ARRANGEMENT 审中-公开
标题翻译：管道限制装置
公开(公告)号：WO1995028595A1
公开(公告)日：1995-10-26
申请号：PCT/GB1995000817
申请日：1995-04-10
申请人： HYDRA-TIGHT LIMITED , WALMSLEY, Owen
发明人： HYDRA-TIGHT LIMITED
IPC分类号： F16L37/00
CPC分类号： F16L37/002 , F16L1/26
摘要： A coupling arrangement (15, fig. 3) for restraining two elongate members such as sub-sea pipes (11 or 12) with respect to each other when subjected to hydrostatic end loads, and which is operable remotely by way of an ROV (16), comprises a housing (20) for receiving the pipes containing restraining means axially displaceable by fluid pressure to grip the pipe and also, at the gripping position, the housing wall (25) to prevent pipe retraction unless deliberately released. The restraint means carries on member (33) radially expandable collet means (34) which like the wall is profiled with fine pitch, shallow ridges and grooves provided by a helical screw thread and requiring little axial disturbance of the restraint means from the gripping position to engage. Preferably, the restraint member (33) and collet means (34) are moved further than pipe gripping means (45) to compress spring means (53) which is able thereafter to accommodate changes in hydrostatic end load on the pipe without varying the axial loading at the collet means.
摘要翻译：一种用于当经受静液压端载荷时相对于彼此限制两个细长构件（例如海底管道（11或12））的联接装置（图3），并且其可通过ROV（16 ）包括用于接收包含限制装置的管道（20），该限制装置可以通过流体压力轴向移动以夹紧管道，并且还在夹持位置处容纳壳体壁（25），以防止管道收回，除非有意释放。约束装置承载构件（33）可径向膨胀的夹头装置（34），其类似于由锥形螺纹形成的细小间距，浅脊和槽形成的壁，并且需要约束装置几乎不受夹紧位置至从事。优选地，约束构件（33）和夹头装置（34）比管夹持装置（45）进一步移动以压缩弹簧装置（53），该弹簧装置能够随后适应管道上的静水端载荷的变化，而不改变轴向载荷在夹头手段。

2. 发明申请

WO1993008953A1 FLUID OPERATED ACTUATOR OVERSTROKE PREVENTION 审中-公开
标题翻译：液体操作执行器过压防护
公开(公告)号：WO1993008953A1
公开(公告)日：1993-05-13
申请号：PCT/GB1992001973
申请日：1992-10-28
申请人： HYDRA-TIGHT LIMITED , BOLTON, Steven, Thomas , HUGHES, David, John
发明人： HYDRA-TIGHT LIMITED
IPC分类号： B23P19/06
CPC分类号： F15B15/24
摘要： A hydraulic bolt tensioner (10) (Fig. 2) includes an annular piston (15) and cylinder (20) defining chamber (19). To prevent inadvertent piston overstroke a piston skirt (152) is provided with a cam surface (27) opposite a relief passage (31) from the passage (17) that contains a relief valve (30). The valve body has a seating face (35), and a stem that extends through the valve seat and ends in a rounded cam follower (37), such that as the piston moves to overstroke, the cam surface displaces the valve body and relieves pressure in chamber (19) by permitting both supply fluid, and fluid ejected from chamber (19) by bolt tension reaction, to vent to the environment.

3. 发明申请

WO1996002363A1 HYDRAULIC BOLT TENSIONING ARRANGEMENT 审中-公开
标题翻译：液压螺栓紧固装置
公开(公告)号：WO1996002363A1
公开(公告)日：1996-02-01
申请号：PCT/GB1995001617
申请日：1995-07-10
申请人： HYDRA-TIGHT LIMITED , SADLER, Mark, Nicholas , STEVENS, Jason, Philip
发明人： HYDRA-TIGHT LIMITED
IPC分类号： B25B29/02
CPC分类号： B25B29/02
摘要： A hydraulic bolt tensioning arrangement (20) of the tandem-piston type has mechanically coupled inboard and outboard pistons (27, 31) defining with inboard and outboard cylinder bodies (25 and 30) piston extending chambers (40 and 41). An axially extending puller bar (21) having an inboard end adapted to engage with bolt (11) to be tensioned supports pistons (27 and 31) and contains a fluid passage (50) jointing the chambers. A retraction spring (43) between the inboard piston and outboard cylinder body acts to retract both pistons with respect to their respective cylinder bodies by virtue of the coupling with the puller bar. Carriage means, handle (55), connected to the outboard piston enables the arrangement to be disposed on the end of the bolt and rotated as a whole to thread the puller bar onto the bolt and be removed after tensioning, the piston retraction spring means ensuring all fluid is vented from the chambers and the components of the arrangement remain intact.
摘要翻译：串联活塞式的液压螺栓张紧装置（20）具有机械联接的内侧和外侧活塞（27,31），其限定有内侧和外侧的缸体（25和30）活塞延伸腔室（40和41）。具有适于与待张紧的螺栓（11）接合的内侧端部的轴向延伸的拉杆（21）支撑活塞（27和31）并且包含连接腔室的流体通道（50）。内侧活塞和舷外气缸体之间的回缩弹簧（43）用于通过与拉杆的联接而使两个活塞相对于它们各自的缸体缩回。支架装置，连接到外侧活塞的手柄（55）使得布置能够布置在螺栓的端部上并作为整体旋转以将拉杆螺纹拧到螺栓上并且在张紧之后被移除，活塞缩回弹簧意味着确保所有流体都从腔室排出，并且装置的部件保持完整。

4. 发明申请

WO1993000193A1 IMPROVEMENTS IN AND RELATING TO NUT SPLITTERS 审中-公开
标题翻译：对NUT分离器的改进和相关
公开(公告)号：WO1993000193A1
公开(公告)日：1993-01-07
申请号：PCT/GB1992001066
申请日：1992-06-15
申请人： HYDRA-TIGHT LIMITED , ASTON, Peter, Ronald
发明人： HYDRA-TIGHT LIMITED
IPC分类号： B23D29/00
CPC分类号： B23D29/007
摘要： A nut splitter (Fig. 1) incorporates a cutter blade (11), the working edge (16) (Fig. 4) of which is of a blunt, rounded profile. The blade (11) is preferably an equilateral triangle in section, with a cutting edge (16) formed at each apex, thereby enabling use of a blade holder (10) which allows easy change of the working edge (16).

5. 发明申请

WO1987002610A1 POWER TOOLS 审中-公开
标题翻译：电动工具
公开(公告)号：WO1987002610A1
公开(公告)日：1987-05-07
申请号：PCT/GB1986000640
申请日：1986-10-20
申请人： HYDRA-TIGHT LIMITED , BLOKISCH, Olaf
发明人： HYDRA-TIGHT LIMITED
IPC分类号： B25B21/00
CPC分类号： B25B21/005
摘要： A hydraulic torque wrench has a hollow piston with a slot in its sidewall through which an actuator arm projects into the interior of the piston, to which it is connected only through a linkage between the piston at one end and the arm at the other end.

6. 发明申请

WO1995022431A1 HYDRAULIC APPARATUS 审中-公开
标题翻译：液压装置
公开(公告)号：WO1995022431A1
公开(公告)日：1995-08-24
申请号：PCT/GB1995000270
申请日：1995-02-10
申请人： HYDRA-TIGHT LIMITED , HUGHES, David, John , MERCER, Kenneth, Douglas
发明人： HYDRA-TIGHT LIMITED
IPC分类号： B23P19/04
CPC分类号： B66F19/00
摘要： Apparatus (20) (Figure 1(a)) for forcing apart apertured bodies, such as separating frictionally interlocked turbine discs (11, 12) which have aligned apertures (1911, 1912) therein, comprises local and remote sleeves (33, 35) which are coupled axially by tie bars (67) and locating transducer (60) which sets their relative positions in the apertures in which they are disposed from one end. Each sleeve has a tapered internal wall (33, 38) and carries a tapered plug (34, 39). The plugs are connected by coaxial control rods (52, 54) to actuation transducer (50) which also serves with the locating transducer (60) to wedge the plugs into their sleeves by forcing them apart axially whilst the sleeves are held with respect to each other by locking transducer (60), causing the sleeves to expand radially into frictional engagement with the apertures. Unlocking transducer (60) permits transducer (50) to force both the wedged plugs and sleeves apart to separate the discs (11 and 12). Transducer (50) is double-acting and reversing its stroke unwedges the plugs from the sleeve permitting their removal from the separated discs. In an alternative embodiment (300, Figure 3(a)) the sleeves may be separated and inserted through opposite ends of a pair of apertures.
摘要翻译：用于强制分开多孔体的装置（20）（图1（a））包括本体和远程套筒（33,35），例如在其中具有对准的孔（1911,1912）的分离的摩擦互锁的涡轮盘（11,12）它们通过连杆（67）和定位换能器（60）轴向联接，定位换能器（60）在其一端设置它们设置的孔中的相对位置。每个套筒具有锥形内壁（33,38）并且承载锥形塞（34,39）。插头通过同轴控制杆（52,54）连接到致动换能器（50），致动换能器（50）还与定位换能器（60）一起工作，以通过迫使它们轴向地分开来将塞子楔入其套筒中，同时套筒相对于每个另一个通过锁定换能器（60），使得套筒径向膨胀地与孔摩擦接合。解锁换能器（60）允许换能器（50）将楔形塞子和套筒两者分开以分离盘（11和12）。传感器（50）是双作用的并且其行程的反转使未塞住套筒的插头允许从分离的盘移除。在替代实施例（300，图3（a））中，套筒可以被分离并插入穿过一对孔的相对端。

7. 发明申请

WO1994010493A1 IMPROVEMENTS IN OR RELATING TO CLAMPS AND CONNECTORS 审中-公开
标题翻译：改进或相关的夹子和连接器
公开(公告)号：WO1994010493A1
公开(公告)日：1994-05-11
申请号：PCT/GB1993002248
申请日：1993-11-02
申请人： HYDRA-TIGHT LIMITED , WALMSLEY, Owen , EMMETT, Robert
发明人： HYDRA-TIGHT LIMITED
IPC分类号： F16L23/024
CPC分类号： F16L21/08 , F16L21/04 , F16L23/024
摘要： A clamp or connector (10) for gripping an elongate member e.g. pipes (11, 12) has a housing (14, 14a) engageable with circumferentially discontinuous angularly expansible and contractible gripping elements (24) which engage inclined surfaces (18) and a deformable seal (22) engaging a distance piece (19). Tightening of nuts (32) increases the grip. When gripping a non-circular pipe the element (24) can move axially as at (29). The clamp can grip an internal circumference and can adjust to accommodate a degree of ovality of the pipe.
摘要翻译：用于夹紧细长构件的夹子或连接器（10），例如管道（11,12）具有可与周向不连续的角度可膨胀和可收缩的夹紧元件（24）接合的壳体（14,14a），其接合倾斜表面（18）和接合距离件（19）的可变形密封件（22）。拧紧螺母（32）会增加抓地力。当握住非圆形管时，元件（24）可以像（29）那样轴向移动。夹具可以抓住内圆周并且可以调节以适应管道的一定程度的椭圆度。

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