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公开(公告)号：US5078177A
公开(公告)日：1992-01-07
申请号：US518021
申请日：1990-05-02
IPC分类号： F16K17/04
CPC分类号： F16K17/0433 , Y10T137/774
摘要： The invention contemplates an improved poppet-type relief-valve construction which features an inlet-port configuration at upstream offset from the valve-closed seat region of the valve. To open the valve, a valve member must be moved by upstream pressure exceeding a predetermined threshold. This valve member integrally carries a specially profiled formation that (a) is upstream from the seat region and (b) coacts with a specially profiled region of inlet port. This action necessarily takes place upstream from the seat region and is such as to provide control of valve operation especially during that fraction of valve-member displacement that spans the "cracking" phase of valve operation. The net result is to avoid development of the "chatter" which customarily characterizes the "cracking" phase of valve operation.
摘要翻译： 本发明考虑了一种改进的提升式安全阀构造，其具有在阀的阀闭合座区域的上游偏移处的入口端口构造。 为了打开阀门，必须通过超过预定阈值的上游压力来移动阀构件。 该阀构件一体地承载特殊的成形结构，其中（a）在座部区域的上游，和（b）与入口端口的特殊区域共同作用。 该作用必然地发生在座位区域的上游，并且是为了提供阀门操作的控制，特别是在跨越阀门操作的“开裂”阶段的阀门位移的那一部分期间。 最终的结果是避免开发通常表征阀操作“开裂”阶段的“颤动”。
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公开(公告)号：US4399836A
公开(公告)日：1983-08-23
申请号：US254096
申请日：1981-04-14
CPC分类号： F15B13/0821 , F15B13/0405 , F15B13/0814 , F15B13/0835 , F15B13/085 , F15B13/0857 , F15B13/086 , F15B13/0875 , F15B2013/004 , Y10T137/7761 , Y10T137/87885
摘要： The invention contemplates an electrically operated valve construction for control of fluid flow wherein an actuator module is adapted for detachable connection to a valve-body module which contains the valve member to be automatically positioned by a driver element of the actuator module. All electronic components for moving the driver element are self-contained in the actuator module, and these elements include a fluid-sensing transducer producing an electrical output, for closure of the control loop. The transducer has sealed exclusive exposure to fluid in the valve-body module via a special port within the confines of the interface between the modules, when the modules are assembled to each other; this port communicates directly with that part of the valve-body passage which is on the downstream side of the valve member. An electric cable for external supply of power (and, if desired, command signals) is provided to the actuator module via connector elements exposed for detachable connection at the interface between modules, so that the actuator module requires no wiring or plumbing or other mechanical coupling that is not detachable at the interface between modules.
摘要翻译： 本发明考虑了一种用于控制流体流动的电动阀结构，其中致动器模块适于可拆卸地连接到阀体模块，该阀体模块包含要由致动器模块的驱动元件自动定位的阀构件。 用于移动驱动元件的所有电子部件都在执行器模块中是独立的，并且这些元件包括产生电输出的流体感测换能器，用于关闭控制回路。 当模块彼此组装时，传感器通过模块之间的界面范围内的特殊端口将阀体模块中的流体密封地独占暴露; 该阀口直接与阀体下游侧的阀体通路部分连通。 用于外部电力供应的电缆（以及如果需要的话，命令信号）通过在模块之间的接口处露出用于可拆卸连接的连接器元件提供给致动器模块，使得致动器模块不需要布线或管道或其它机械耦合 这在模块之间的接口处是不可拆卸的。
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公开(公告)号：US3941508A
公开(公告)日：1976-03-02
申请号：US567090
申请日：1975-04-11
申请人： Donald A. Worden
发明人： Donald A. Worden
CPC分类号： G05D16/18 , G01L27/005
摘要： This gas pressure control system is intended primarily for testing gauges by providing an accurate static gas pressure over a wide range, preferably from zero to 10,000 pounds per square inch. The system is equipped with a pressure intensifier that operates automatically to raise the delivery pressure above the supply pressure when necessary. The supply may be a bottle of nitrogen under pressure of two thousand two hundred pounds per square inch, and the pressure intensifier is preferably a cylinder-and-piston motor-pump combination with a displacement ratio such as 70 to 1.
摘要翻译： 该气体压力控制系统主要用于通过在宽范围内提供精确的静态气体压力来测试仪表，优选为零至10,000磅/平方英寸。 该系统配有一个压力增压器，可在需要时自动运行，将输送压力提高到供给压力以上。 供应物可以是二千二百磅/平方英寸的压力下的一瓶氮气，并且增压器优选为具有例如70至1的位移比的气缸和活塞电机 - 泵组合。
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公开(公告)号：US4897959A
公开(公告)日：1990-02-06
申请号：US324408
申请日：1989-03-15
申请人： Donald A. Worden
发明人： Donald A. Worden
CPC分类号： E05F15/632 , E05B65/0017 , E05F15/635 , E05F17/001 , E05Y2201/22 , E05Y2201/222 , E05Y2201/686 , E05Y2201/688 , E05Y2201/706 , E05Y2900/132 , E05Y2900/60
摘要： A jail-cell door is suspended from an overhead carriage, for horizontal displacement between closed and open positions, and an elongate slide bar has a horizontal lost-motion connection to the carriage. The slide bar mounts a reversible electric motor and is continuously engaged to the driven one of two rollers from which the carriage and its cell door are suspended; the shaft for the other suspension roller is journaled in the carriage. For driving the cell door in the door-opening direction, the outer lost-motion limit determines an expanded wheelbase of door suspension, and for driving the cell door in the door-closing direction, the inner lost-motion limit determines a slightly reduced wheelbase of door suspension. The slide bar carries cam formations at or near its respective ends for determining locking-bolt action only at the fully closed and fully open positions of the door, and a deadlock device is pivotally carried at one end of the slide bar, serving the door-closed condition. Assurance against bodily harm upon door closing is inherent in the design of drive-roller engagement to the rail on which both rollers travel, the engagement being to provide drive-roller slip at a predetermined threshold of tractive force.
摘要翻译： 一个监狱门从架空车架上悬挂起来，用于在关闭位置和打开位置之间进行水平位移，并且细长的滑动杆具有与托架的水平的不动作连接。 滑动杆安装可逆电动机并且连续地接合到两个辊中的被驱动的一个，托架和其单元门从该辊悬挂; 用于另一个悬挂辊的轴在支架中轴颈。 为了在门打开方向上驱动电池门，外部的失速限制决定了门悬挂的扩大轴距，并且为了在门关闭方向上驱动电池门，内部的失速限制决定了轴距稍微减小 的门悬挂。 滑杆在其各端或其附近承载凸轮结构，用于仅在门的完全关闭和完全打开位置确定锁定螺栓作用，并且死锁装置在滑动杆的一端枢转地承载， 关闭状态。 防止门关闭时对人身伤害的保证在与两个滚轮行进的导轨的驱动辊接合的设计中是固有的，该接合是以预定的牵引力阈值提供驱动辊滑动。
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公开(公告)号：US4484285A
公开(公告)日：1984-11-20
申请号：US597263
申请日：1984-04-06
CPC分类号： B21B31/32 , B21B31/028 , B21B37/62
摘要： The invention contemplates a prestressed rolling mill incorporating a system of hydraulically operated load-transfer blocks, wherein the blocks are of unitary construction and bodily interposed between vertically opposed regions of upper and lower back-up roll chocks, at the respective inlet and exit sides of each axial end of the mill. Each load-transfer block is inherently self-adapting (at each of a plurality of force-application regions) to such small locally different deformations in the mill frame as result from the block's modulating contribution to net prestressing force; further, each load-transfer block includes its own hydraulic-control system with minimum-displacement actuators whereby a fast time constant of hydraulic response is achieved. Still further, control of all load-transfer blocks is monitored and coordinated through a microprocessor having instantaneous hydraulic-pressure and positional data inputs electrically supplied from all load-transfer blocks, as well as from various other data inputs pertaining to mill operation.
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公开(公告)号：US4044580A
公开(公告)日：1977-08-30
申请号：US749696
申请日：1976-12-13
摘要： Rolling mills, especially for sheet metal, and also paper, rubber and similar rolling mills, require accurate control of the gap between the rolls since this determines the uniformity of the gauge of the material rolled by the mill. This invention provides a rolling mill with sensors that cooperate with the circumferential surfaces of the rolls, or rigid parts thereof, to detect relative movement of the rolls in directions that affect the roll gap and the gauge of the material being rolled. Response of the sensors operates a transducer to affect automatic correction of changes in the spacing of the rolls from one another.
摘要翻译： 特别是对于钣金的轧机，以及纸，橡胶和类似的轧机，需要精确地控制辊之间的间隙，因为这确定了由轧机轧制的材料的规格的均匀性。 本发明提供一种具有与辊或其刚性部分的圆周表面配合的传感器的轧机，以检测轧辊在影响辊间隙的方向上的相对运动和被轧制材料的量规。 传感器的响应操作换能器以影响辊彼此之间的间距变化的自动校正。
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公开(公告)号：US4481801A
公开(公告)日：1984-11-13
申请号：US562865
申请日：1983-12-19
CPC分类号： B21B37/62 , B21B31/028 , B21B31/32
摘要： The invention contemplates a prestressed rolling mill incorporating a system of hydraulically operated load-transfer blocks, wherein the blocks are of unitary construction and bodily interposed between vertically opposed regions of upper and lower back-up roll chocks, at the respective inlet and exit sides of each axial end of the mill. Each load-transfer block is inherently self-adapting (at each of a plurality of force-application regions) to such small locally different deformations in the mill frame as result from the block's modulating contribution to net prestressing force; further, each load-transfer block includes its own hydraulic-control system with minimum-displacement actuators whereby a fast time constant of hydraulic response is achieved. Still further, control of all load-transfer blocks is monitored and coordinated through a microprocessor having instantaneous hydraulic-pressure and positional data inputs electrically supplied from all load-transfer blocks, as well as from various other data inputs pertaining to mill operation.
摘要翻译： 本发明考虑了一种结合有液压操作的载荷传递块系统的预应力轧机，其中块体具有一体结构，并且在上下支承辊轴承座的垂直相对的区域之间，在相应的入口和出口侧 磨机的每个轴向端。 每个载荷传递块本身就是自适应（在多个施力区域中的每一个处），这是由于块的调节对净预应力的贡献而导致的，在磨机框架中这样小的局部不同的变形; 此外，每个负载传递块包括其自身的具有最小位移致动器的液压控制系统，由此实现液压响应的快速时间常数。 此外，通过具有从所有负载传递块电供应的瞬时液压和位置数据输入的微处理器以及与轧机操作相关的各种其它数据输入来监视和协调所有负载传递块的控制。
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