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Force balance pressure device

阅读:906发布:2021-07-24

专利汇可以提供Force balance pressure device专利检索,专利查询,专利分析的服务。并且1. In a moored mine and mine anchor having a mooring cable, a force balancing system, said system comprises a pivoted bar, means for applying to one end of said bar a force proportional to the depth of the water in which the anchor rests when on the bottom, means responsive only to the pay out of the mooring cable for applying a force to said bar for counterbalancing the force applied to the one end of said bar, means actuated by said bar when the counterbalancing force exceeds the applied force to cause the pay out of the cable to stop.,下面是Force balance pressure device专利的具体信息内容。

1. In a moored mine and mine anchor having a mooring cable, a force balancing system, said system comprises a pivoted bar, means for applying to one end of said bar a force proportional to the depth of the water in which the anchor rests when on the bottom, means responsive only to the pay out of the mooring cable for applying a force to said bar for counterbalancing the force applied to the one end of said bar, means actuated by said bar when the counterbalancing force exceeds the applied force to cause the pay out of the cable to stop.
2. A device as claimed in claim 1 in which said means for applying a force comprises a bellows connected to receive the pressure from the water and a push rod for applying said force to said one end of said bar.
3. A device as claimed in claim 2 in which said means for counterbalancing comprises a spring attached at one end to said bar to produce a moment about the pivot, a screw rotatably mounted, a nut non-rotatably mounted on said screw and having means attaching the other end of said spring to said nut, a ratchet wheel attached to one end of said screw, a solenoid motor having a pawl mounted only to rotate said ratchet wheel in a direction to tension said spring.
4. A device as claimed in claim 3 having means for presetting the initial force of said spring for determining the depth below the surface the mine will be moored.
5. A device as claimed in claim 1 in which said bar is of magnetic material, a magnet mounted adjacent one end of said bar to bias said bar toward a position in which said actuated means is rendered inoperative.
6. In a moored mine and mine anchor having a mooring cable, a mine anchor casing having means for dispensing a length of cable stowed therein, a force balancing system for mounting in said casing from which the surrounding medium is excluded comprising a push rod, a tubular bellows connecting said push rod to the casing, said casing having an oPening therethrough for admitting the surrounding medium into said bellows, a normally open electrical switch a pivoted lever carrying an electric contact at one end, said contact forming part of said switch, said push rod being positioned to bear on said one end, a spring attached to said lever to oppose the action of said push rod, means for increasing the force exerted by said spring in response to a signal sufficiently to close said switch, said signal being proportional to the amount of cable payed out from said anchor.
7. A device as claimed in claim 6 when used in an anchor device having a mooring cable for a member buoyant in said medium, in which said force increasing means comprises a motor actuated in response to the amount of a mooring cable payed out, a rotatably mounted threaded member, means connecting said motor to said threaded member for rotating said threaded member in a direction to tension and spring, nut means non-rotatably mounted in threaded engagement with said member and attached to said spring.
8. A device as claimed in claim 6 in which a magnet is mounted adjacent to one end of said liner to oppose the movement of the lever in response to the force exerted by said spring.
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