Force measuring weighing device
阅读：779发布：2022-11-11
专利汇可以提供Force measuring weighing device专利检索，专利查询，专利分析的服务。并且A weighing device such as a U-tube densimeter for measuring the densities of liquids and producing indications of densities including a fluid pressure operated load or force measuring unit employing a booster pilot. The measuring unit has provision for balancing the tare weight of the U-tube and for making a zero set calibration for the U-tube.，下面是Force measuring weighing device专利的具体信息内容。
1. In a weighing device having a weighing means mounted to mounting means with substantially free vertical movement therebetween and a force measuring means mounted to measure the gravitational force exerted between said weighing means and said mounting means by a specimen supported by said weighing means, said measuring means comprising: a movable support member connected through a biased support means resiliently and adjustable biased by an adjustable spring device into weight supporting relation with said weighing means and through a fluid pressure responsive expandable force opposing means to a body carried by said mounting means to oppose the gravitational force imposed by said specimen in response to a fluid pressure exerted within said opposing means, said fluid pressure having an intensity which is a function of the weight of said speciment.
2. The device of claim 1 wherein said support means includes a threaded collar effective against said support member and having a flange axially biased between spring means, a threaded adjustment means to vary the axial position of said flange between said spring means, and an adjustable support rod connected between said adjustment rod and said weighing means.
3. The device of claim 1 wherein said weighing means comprises a tube for receiving a continuous flow of specimen to be weighed.
4. The device of claim 1 including valve means which varies the flow of fluid into said opposing means as a function of said force.
5. The Device of claim 1 wherein said force measuring means is operable to measure the gravitational force from a liquid tube weighing means.
6. The device of claim 4 wherein said valve means includes a spring biased valve member carried by said support member for movement with respect to a valve seat included with said body.
7. In a weighing device having a weighing means mounted to mounting means with substantially free vertical movement therebetween and a force measuring means mounted to measure the gravitational force exerted between said weighing means and said mounting means by a specimen supported by said weighing mans, said measuring means comprising: a movable support member connected through a biased support means resiliently and adjustably biased by an adjustable spring device into weight supporting relation with said weighing means and through a fluid pressure responsive expandable force opposing means to a body carried by said mounting means to oppose the gravitational force exerted by said specimen in response to a fluid pressure exerted within said opposing means, said fluid pressure having an intensity which is a function of the weight of said specimen, and pilot means for supplying fluid under pressure to said first opposing means in quanity and pressure responsive to said fluid pressure.
8. In a weighing device having a weighing means mounted to mounting means with substantially free vertical movement therebetween and a force measuring means mounted to measure the gravitational force exerted between said weighing means and said mounting means by a specimen supported by said weighing means, said measuring means comprising: a movable support member connected through a biased support means resiliently and adjustably biased by an adjustable spring device into weight supporting relation with said weighing means and through a first fluid pressure responsive expandable force opposing means into a body carried by said mounting means to oppose the gravitational force exerted by said specimen in response to a first fluid pressure exerted within said first opposing means, the intensity of said first fluid pressure being a function of the weight of said specimen, a second fluid responsive expandable force opposing means mounted between said support member and said body to oppose the gravitational force of said weighing means and a selected portion of the gravitational force of said specimen in response to a second fluid pressure exerted within said second opposing means, and pilot means for supplying fluid under pressure to said first opposing means in quantity and pressure dependent on said first fluid pressure.
9. The device of claim 8 wherein said first opposing means and said second opposing means includes concentrically disposed cylindrical bellows mounted between said movable support member and said body to define a cylindrical fluid pressure chamber and an annular fluid pressure chamber.
10. The device of claim 9 wherein said adjustable support means includes a threaded collar effective against said support member and having a flange axially biased between spring means, a threaded adjustment means to vary the axial position of said flange between said spring means, and an adjustable support rod connected between said adjustment rod and said weighing means.
11. The device of claim 10 wherein said weighing means comprises a tube for receiving a continuous flow of specimen to be weighed.
12. The device of claim 9 including valve means which varies the flow of fluid into said first opposing means as a function of said force.
13. The device of claim 12 wherein said pilot means varies the fluid supplied to said valve means as a function of said force.
14. The device of claim 12 wherein said pilot means includes a control means responsive to said first fluid pressure to vary fluid flow to said valve means.
15. The device of claim 12 wherein said valve means includes a spring biased valve member carried by said support member for movement with resPect to a valve seat included with said body.
16. The device of claim 9 wherein said pilot means includes a detector pilot having a control member and a fluid pressure supply nozzle mounted for relative motion in response to a variation in said first fluid pressure and compensated supply means for supplying fluid pressure to said nozzle for reducing the change in spacing of said control member with respect to said nozzle upon a change in said first fluid pressure means.
17. The device of claim 10 including valve means which varies the flow of fluid into said first opposing measn as a function of said force.
18. The device of claim 10 wherein said pilot means includes a detector pilot having a control member and a fluid pressure supply nozzle mounted for relative motion in response to a variation in said first fluid pressure and compensated supply means for supplying fluid pressure to said nozzle for reducing the change in spacing of said control member with respect to said nozzle upon a change in said first fluid pressure.
19. Force measuring means adapted for a weighing device comprising: a movable support member connected through a biased support means resiliently and adjustably biased by an adjustable spring device into supporting relation with a force source and through a first fluid pressure responsive expandable force opposing means to a mount to oppose the gravitational force exerted by said source in response to a first fluid pressure exerted within said first opposing means, the intensity of said first fluid pressure being a function of said force, a second fluid responsive expandable force opposing means mounted between said support member and said mount to oppose a selected portion of the force of said source in response to a second fluid pressure exerted within said second opposing means, restriction means connected with said second opposing means to dampen variations in said second fluid pressure, and booster pilot means for supplying fluid under pressure to said first opposing means in quantity and pressure dependent on said first fluid pressure.
20. The measuring means of claim 19 wherein said measuring means is operable to measure the gravitational force from a liquid tube weighing means.
21. The measuring means of claim 19 including valve means which varies the flow of fluid into said first opposing means as a function of said force.
22. The measuring means of claim 21 wherein said valve means includes a spring biased valve member carried by said support member for movement with respect to a valve seat included with said body mount.
23. The measuring means of claim 19 wherein said booster pilot includes a detector pilot having a control member and a fluid pressure supply nozzle mounted for relative motion in response to variations in said first pressure and compensated supply means for supplying fluid pressure to said nozzle for spacing of said control member with respect to said nozzle upon a change in said first pressure.
24. The measuring means of claim 19 wherein said first opposing means and said second opposing means include concentrically disposed cylindrical bellows mounted between said movable support member and said body to define a cylindrical fluid pressure chamber and an annular fluid pressure chamber.
25. The measuring means of claim 19 wherein said support means includes a threaded collar effective against said support member and having a flange axially biased between spring means, a threaded adjustment means to vary the axial position of said flange between said spring means, and an adjustable support rod connected between said adjustment rod and said weighing means.
26. The measuring means of claims 19 wherein said weighing device comprises a tube for receiving a continuous flow of specimen to be weighed.
27. The measuring means of claim 19 wherein said pilot means varies the fluid supplied to said valve means as a function of said force.
28. The measuring means of claim 19 wherein said pilot meaNs includes a control means responsive to said first fluid pressure to vary fluid flow to said restriction means.
29. Force measuring means adaptable to use in a weighing device comprising: a movable support member connected through a biased support means resiliently and adjustably biased by an adjustable spring device into supporting relation with a force source and through a fluid pressure responsive expandable force opposing means to a mount to opposite the gravitational force exerted by said source in response to a fluid pressure exerted within said opposing means, the fluid pressure being of intensity which is a function of said force.
30. The measuring means of claim 29 wherein said support means includes a threaded collar effective against said support member and having a flange axially biased between spring means, a threaded adjustment means to vary the axial position of said flange between said spring means, and an adjustable support rod connected between said adjustment rod and said weighing means.
31. The measuring means of claim 29 including a booster pilot comprising a detector pilot having a control member and a fluid pressure supply nozzle mounted for relative motion in response to variation in said pressure and compensated supply means for supplying fluid pressure to said nozzle for reducing the change in spacing of said control member with respect to said nozzle upon a change in said pressure.
32. The measuring means of claim 29 including valve means which varies the flow of fluid into said first opposing means as a function of said force.
33. The measuring means of claim 32 wherein said valve means includes a spring biased valve member carried by said support member for movement with respect to a valve seat included with said body mount.
34. Force measuring means for a weighing device comprising: a movable support member connected through a and adjustable support means resiliently and adjustably biased by an adjustable spring device into supporting relation with a force source and through a first fluid pressure responsive expandable force opposing means to a mount to oppose the gravitational force exerted by said source in response to a first fluid pressure exerted within said first opposing means, said fluid pressure being of intensity which is a function of said force, and a second fluid responsive expandable force opposing means mounted between said support member and said mount to oppose a selected portion of the force of said source in response to a second fluid pressure exerted within said second opposing means.
35. The measuring means of claim 34 including flow restriction means connected with said second opposing means to dampen variations in said second fluid pressure.
36. The measuring means of claim 34 wherein said first opposing means and said second opposing means include concentrically disposed cylindrical bellows mounted between said movable support member and said body to define a cyindrical fluid pressure chamber and an annular fluid pressure chamber.
37. The measuring means of claim 36 wherein said adjustable support means includes a threaded collar effective against said support member and having a flange axially biased between spring means, a threaded adjustment means to vary the axial position of said flange between said spring means, and an adjustable support rod connected between said adjustment rod and said weighing means.
38. The measuring means of claim 37 wherein said booster pilot includes a detector pilot having a control member and a fluid pressure supply nozzle mounted for relative motion in response to variation in said first pressure and compensated supply means for supplying fluid pressure to said nozzle for reducing the change in spacing of said control member with respect to said nozzle upon a change in said first pressure.
39. The measuring means of claim 38 including valve means which varies the flow of fluid into said first opposing means as a function of said force.
40. The measuring means of claim 39 wherein said valve means includes a spring biased valve member carried by said support member for movement with respect to a valve seat included with said body mount.
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