GB514568A - Improvements in or relating to temperature compensating devices for measuring instruments - Google Patents
Improvements in or relating to temperature compensating devices for measuring instrumentsInfo
- Publication number
- GB514568A GB514568A GB13960/38A GB1396038A GB514568A GB 514568 A GB514568 A GB 514568A GB 13960/38 A GB13960/38 A GB 13960/38A GB 1396038 A GB1396038 A GB 1396038A GB 514568 A GB514568 A GB 514568A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rod
- strip
- rockshaft
- temperature
- diaphragm
- 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
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/02—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using mechanical means
- G01D5/04—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using mechanical means using levers; using cams; using gearing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/04—Means for compensating for effects of changes of temperature, i.e. other than electric compensation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
514,568. Temperature compensating devices. BENDIX AVIATION CORPORATION. May 10, 1938. No. 13960. Convention date, May 21, 1937. [Class 106 (ii)] An indicating or measuring instrument comprises a sensitive element connected by a motion transmitting mechanism to an indicating member wherein a temperature responsive element forming part of the motion transmitting mechanism is fastened at one end for rotative adjustment about its own axis and is free at its other end. In the pressure gauge shown in Fig. 1, a diaphragm 27 receiving the pressure to be measured from an opening 26 carries a post 29 in which is mounted a bimetallic rod 30 capable of being rotated on its own axis by an upturned end 30a (not shown) and held in adjusted position by a screw 31. The rod 30 is mounted parallel to a rockshaft 32 which it rocks on movement of the diaphragm by engaging a rod 39 radially connected to the shaft 32. Another radial rod 40 on the shaft 32 engages a rod 42 which rotates a sector 45 on a shaft 44 to rotate a pinion 46. and hence a needle 18 over a dial 17. On change of temperature, the diaphragm moves. but the bimetallic rod 30 'flexes, thus altering the leverage on the rod 39, and by rotating the rod 30 through its upturned end 30a so that the flexing occurs in the right direction and to the right amount, compensation for temperature is effected. In the modification shown in Fig. 7, the diaphragm 27 carries a rod 59 which engages a notch 58 in a bimetallic strip 50 mounted for rotation in a post 54 and held by a screw 56, the effective length of the strip being capable of variation by setting a screw 57 in any one of a number of holes in the rockshaft 32 to engage a corresponding hole in the strip 50. The rockshaft carries a radial arm 40 as in Fig. 1. Change of temperature causes the strip to flex and so to alter the leverage of the rod 59 about the rockshaft 32. The amount of flexure depends on the angular position and effective length of the strip.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US514568XA | 1937-05-21 | 1937-05-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB514568A true GB514568A (en) | 1939-11-13 |
Family
ID=21971420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13960/38A Expired GB514568A (en) | 1937-05-21 | 1938-05-10 | Improvements in or relating to temperature compensating devices for measuring instruments |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB514568A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1140713B (en) * | 1958-11-26 | 1962-12-06 | Bendix Corp | Device for the transmission of measuring movements using a bimetal to compensate for the effects of heat |
GB2160651A (en) * | 1984-06-20 | 1985-12-24 | Endress Hauser Gmbh Co | Sensor |
-
1938
- 1938-05-10 GB GB13960/38A patent/GB514568A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1140713B (en) * | 1958-11-26 | 1962-12-06 | Bendix Corp | Device for the transmission of measuring movements using a bimetal to compensate for the effects of heat |
GB2160651A (en) * | 1984-06-20 | 1985-12-24 | Endress Hauser Gmbh Co | Sensor |
GB2160651B (en) * | 1984-06-20 | 1989-05-10 | Endress Hauser Gmbh Co | Pressure transmitter |
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