GB346183A - - Google Patents
Info
- Publication number
- GB346183A GB346183A GB12762/30A GB1276230A GB346183A GB 346183 A GB346183 A GB 346183A GB 12762/30 A GB12762/30 A GB 12762/30A GB 1276230 A GB1276230 A GB 1276230A GB 346183 A GB346183 A GB 346183A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pointer
- pressure
- thermometer
- temperature
- spindle
- 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
- G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
- G01L7/04—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges in the form of flexible, deformable tubes, e.g. Bourdon gauges
- G01L7/043—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges in the form of flexible, deformable tubes, e.g. Bourdon gauges with mechanical transmitting or indicating means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
346,183. Combined pressure gauge and thermometer. SCHMIDT'SCHE HEISSDAMPF-GES., 2, Rolandstrasse, Wilhelmsh÷he, Cassel, Germany. April 25, 1930, No. 12762. Convention date, May 21, 1929. [Class 106 (ii).] In a combined pressure and temperature indicator for the heating media of heat transferrers the movements of the indicators according to the non- linear law connecting the temperature and pressure of the heating medium in the saturated condition are brought into relation in such a way that if the heating medium becomes superheated, a departure from such related movement occurs. An electric thermometer 4 of the rotating drum type is connected by a pipe 3 to an extension 2 immersed in the steam flowing through the tube 1 of a heat transferrer. The pointer 8 of the thermometer is rotated by the thermometer drum and moves over a scale indicating e.g. 270‹ C. to 370‹ C. For measuring pressure a Bourdon tube 10 is connected to the medium by a pipe 9 the movement of the free end being transmitted to a spindle 13 by quadrant and pinion in the usual way. A cam disc 18 designed according to the non-linear law connecting temperature and pressure of the saturated medium is fixed to the spindle 13, and has secured to it one end of a band 19 which passes over and is fastened to a disc 20 journalled coaxially with the thermometer spindle and carrying a pointer 21. A disc 24 fixed with the disc 20 has attached to it a band 25 connected to the casing by a spring 26. The transmission between the pressure gauge and thermometer spindle may be through cams coacting with a roller or through levers. The two pointers move in unison as long as the steam in the tube 1 is saturated. If the steam becomes superheated the pointers diverge and as the thermometer pointer 8 is preferably coloured red this is readily noticeable. A lug on the temperature pointer may be arranged to engage the pressure pointer on a predetermined divergence and operate an electric signal circuit. In a second form the pressure gauge and thermometer have a common axis, the spindle of the temperature pointer being hollow to receive the spindle of the pressure pointer. Instead of the movement of the manometer pointer being brought into agreement with the temperature pointer, the reverse may be the case. In a third form the spindles 48, 50, Fig. 5, of the pressure and temperature pointers are arranged eccentrically. The pointers 49, 51 intersect continuously on the arc 52 so long as the steam is saturated. The temperature pointer 51 is cut away so that the right-hand edge is displaced from its centre line and so with normal movements does not come into contact with a pin 54 arranged in the centre line at the end of the pressure pointer. Contact occurs when the temperature pointer moves forward relatively to the other upon superheating taking place. By connecting the pointers in an electric circuit 55 with a bell 56, contact between the pointers may be made to operate a signal.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE346183T | 1929-05-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB346183A true GB346183A (en) | 1931-04-09 |
Family
ID=31895174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12762/30A Expired GB346183A (en) | 1929-05-21 | 1930-04-25 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB346183A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2122346A (en) * | 1982-06-24 | 1984-01-11 | Daiyu Hara | Combined thermometer-fire alarm device |
-
1930
- 1930-04-25 GB GB12762/30A patent/GB346183A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2122346A (en) * | 1982-06-24 | 1984-01-11 | Daiyu Hara | Combined thermometer-fire alarm device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB346183A (en) | ||
US2293403A (en) | System for indicating ratios | |
US3209595A (en) | Combined temperature and pressure sensing apparatus | |
GB452254A (en) | Improvements in remote indicating thermometer | |
US2333793A (en) | Condition responsive indicating instrument | |
US1629063A (en) | Terminal-difference gauge | |
US1414154A (en) | Pressure gauge | |
US1791240A (en) | Differential indicator | |
US1307037A (en) | Setts | |
GB315751A (en) | Improvements in or relating to indicating and/or recording mechanism | |
GB326203A (en) | Improvements in and relating to liquid level indicators for steam boilers and other liquid containers | |
US1650060A (en) | Differential-pressure meter | |
GB554722A (en) | Improvements in or relating to differential pressure gauges | |
FR600471A (en) | Improvements to thermometers, manometers and other measuring devices with dial indicators or recorders | |
US1809759A (en) | Pressure gauge | |
US3641966A (en) | Position indicator | |
GB416766A (en) | Control indicator for aircraft | |
US1936425A (en) | Meter indicator | |
US1561458A (en) | Compound pressure gauge | |
US1414153A (en) | Pressure gauge | |
GB286469A (en) | Improvements in or relating to fluid flow meters | |
GB363077A (en) | Improvements in apparatus for indicating the volumetric measurement of water delivered through the open end of a pipe, hydrant, or the like | |
GB353387A (en) | Improvements relating to fluid flow indicators | |
GB739001A (en) | Improvements relating to differential fluid pressure gauges | |
GB333625A (en) | Improvements in or relating to meters for steam or gas |