GB714900A - Improvements in or relating to apparatus for the volume reduction of gases flowing in pipe-lines - Google Patents
Improvements in or relating to apparatus for the volume reduction of gases flowing in pipe-linesInfo
- Publication number
- GB714900A GB714900A GB25492/52A GB2549252A GB714900A GB 714900 A GB714900 A GB 714900A GB 25492/52 A GB25492/52 A GB 25492/52A GB 2549252 A GB2549252 A GB 2549252A GB 714900 A GB714900 A GB 714900A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- ring
- balance
- comparison
- volume
- 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
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/02—Compensating or correcting for variations in pressure, density or temperature
- G01F15/04—Compensating or correcting for variations in pressure, density or temperature of gases to be measured
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Measuring Volume Flow (AREA)
Abstract
714,900. Integrating-apparatus ; pressure gauges. GEHRE, H Oct. 10, 1952 [Nov. 24, 1951], No. 25492/52. Classes 106 (2) and 106 (4) Integrating mechanism in a meter for measuring the volume of a gas flow reduced to standard conditions by subjecting a comparison-gas to the service conditions of the gas being measured so that the volume change of the comparison-gas controls a variable intermediate drive in the counting mechanism drive of the gas meter comprises a ring-balance in which the comparison-gas is enclosed by a sealing liquid on the other side of which the service pressure of the gas being measured is exerted to produce a displacement. of the ring-balance for controlling the intermediate drive. In one embodiment of the invention, Fig. 1, the gas to be measured passes through a closed chamber 6 in which a ring- balance 2 is pivoted in a knife-edge bearing 1 and fills a part of the ring from the opening 5 to the meniscus A of mercury filling the lower, part which seals the comparison-gas, initially introduced through a tap 4, between the meniscus Al and the closed end 3 of the ring. Changes in service pressure of the gas will cause changes in volume of the comparison-gas, movement of the mercury and rotation of the ring until equilibrium is established when the angular displacement of the ring will be a function of the volume of the comparison-gas and may be used to control a variable transmission in a drive to a counter 23. As shown, Fig. 1, the variable transmission comprises a block 7, counterpoised by a weight 8, with a profile. 7<SP>1</SP> determined empirically or by . calculation so that a tip 10 of a pivoted arm 12 oscillates between the profile 7<SP>1</SP> and a fixed stop 9 with an amplitude proportional to the required reduction factor and with a frequency determined by the gas flow, the flow determining the speed of rotation of the shaft 13 which oscillates the arm 12 through crank means 14, 15, 16 and spring 17. The arm 12 thus drives the counter through link 18 and pawl and ratchet 19, 20 at a speed proportional to the volume gas flow modified by the required reduction factor. In order that the device may be transported safely the ring may be lifted from the knife edge bearing 1 and clamped against two stops 25 by means of a screw 24 and taps 26, 26<SP>1</SP>, 26<SP>11</SP> prevent undue movement or escape of the mercury. In a modification, Fig. 2, one limb of the ring-balance is formed as a spherical drum 27 linked by a rigid duct 28 and by screwing a cap-nut 34 with valve plate 35 onto a rod 29 prevented from rotation and carrying valve plate 31 the valve plates 35, 31 may be brought into contact with seatings at the opening 5 and at the bottom 32 of duct 28 to seal off the different sections when the apparatus is not in use. Weights. 8, 8<SP>1</SP> bring the ring- balance into unstable equilibrium but stable equilibrium may be achieved by providing a loading-weight 36, Fig. 1, and the errors thus introduced being proportional to the angular displacement may be compensated by modifying the profile 7'. Errors due to volume change of the mercury due to temperature changes may be eliminated by forming part of the ring-balance wall as a movab'e member 39, Fig. 3, and arranging for it to be moved appropriately with temperature changes through levers by a temperature sensitive device 37 preferably arranged in a plane perpendicular to that of the ring-balance. Normally results are required accurate within certain limits and it is possible to form a profile 7' as a flatter curve than would be necessary for absolute accuracy having regard to the desired limits, a flatter curve being mechanically desirable.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE714900X | 1951-11-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB714900A true GB714900A (en) | 1954-09-01 |
Family
ID=6625992
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25492/52A Expired GB714900A (en) | 1951-11-24 | 1952-10-10 | Improvements in or relating to apparatus for the volume reduction of gases flowing in pipe-lines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB714900A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3358506A (en) * | 1964-08-06 | 1967-12-19 | Dresser Ind | Temperature compensating device for fluid meters |
CN112051186A (en) * | 2020-07-23 | 2020-12-08 | 山东天岳先进材料科技有限公司 | Method and device for measuring volume density of graphite crucible without pollution |
-
1952
- 1952-10-10 GB GB25492/52A patent/GB714900A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3358506A (en) * | 1964-08-06 | 1967-12-19 | Dresser Ind | Temperature compensating device for fluid meters |
CN112051186A (en) * | 2020-07-23 | 2020-12-08 | 山东天岳先进材料科技有限公司 | Method and device for measuring volume density of graphite crucible without pollution |
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