GB689509A - Improvements in or relating to instruments operated by capsules - Google Patents
Improvements in or relating to instruments operated by capsulesInfo
- Publication number
- GB689509A GB689509A GB2586550A GB2586550A GB689509A GB 689509 A GB689509 A GB 689509A GB 2586550 A GB2586550 A GB 2586550A GB 2586550 A GB2586550 A GB 2586550A GB 689509 A GB689509 A GB 689509A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rock
- shaft
- capsules
- linkage
- pointer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
Abstract
689,509. Pressure gauges. KELVIN & HUGHES, Ltd. Oct. 19, 1951 [Oct. 24, 1950], No. 25865/50. Class 106 (ii). An instrument having one or more main pressure-actuated capsules 13, 14, Fig. 1 actuating indicator means 63, Fig. 2, comprises at least one additional capsule 15 which operatively controls the movement of the indicator means over only a part of its range. For example, as shown, up to about 50,000 feet the main capsules 13, 14 may operate the pointer 63 through a bridge-piece 32 to 37, a spring 40 secured to the bridge, a linkage 44, 47 and a rock-shaft 48, the rock-shaft 48 being connected through toothed sectors and pinions with the pointer 63. The additional capsule 15 is carried to the left with the main capsules 13, 14 until at about 50,000 feet a disc 28 on the free end of the additional capsule 15 contacts an adjustable screw 42 on the spring 40 to move the free end of the latter away from the bridge-piece. and thereby apply additional movement through the linkage, rock-shaft and pointer to maintain the required characteristic of the instrument at the extreme end of its range. The spring 40 and linkage 44, 47 form a three-bar linkage, the relative lengths of which are selected to achieve a close approximation to the required characteristics of the instrument. An inertia compensator arm 55 is pivotally mounted at 56 on a main frame 10 and is connected by a link 57 and pin 58 to the rock-shaft 48. A bimetallic temperature compensating device 20 has arms 22, 23 that act through toggle links 26, 27 on the disc 28 on the free end of the additional capsule 15. The screw 42 may be used to set the altitude at which the additional capsule 15 will become effective. Specification 481,941 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2586550A GB689509A (en) | 1950-10-24 | 1950-10-24 | Improvements in or relating to instruments operated by capsules |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2586550A GB689509A (en) | 1950-10-24 | 1950-10-24 | Improvements in or relating to instruments operated by capsules |
Publications (1)
Publication Number | Publication Date |
---|---|
GB689509A true GB689509A (en) | 1953-04-01 |
Family
ID=10234617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2586550A Expired GB689509A (en) | 1950-10-24 | 1950-10-24 | Improvements in or relating to instruments operated by capsules |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB689509A (en) |
-
1950
- 1950-10-24 GB GB2586550A patent/GB689509A/en not_active Expired
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