GB917771A - Improvements in or relating to apparatus for dispensing mixtures of two liquids - Google Patents
Improvements in or relating to apparatus for dispensing mixtures of two liquidsInfo
- Publication number
- GB917771A GB917771A GB2823460A GB2823460A GB917771A GB 917771 A GB917771 A GB 917771A GB 2823460 A GB2823460 A GB 2823460A GB 2823460 A GB2823460 A GB 2823460A GB 917771 A GB917771 A GB 917771A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- flow
- gear
- stem
- chamber
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/74—Devices for mixing two or more different liquids to be transferred
- B67D7/741—Devices for mixing two or more different liquids to be transferred mechanically operated
- B67D7/742—Devices for mixing two or more different liquids to be transferred mechanically operated involving mechanical counters, e.g. of clock-work type
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D11/00—Control of flow ratio
- G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
- G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
- G05D11/131—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components
- G05D11/132—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components by controlling the flow of the individual components
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
Abstract
917,771. Fluid-pressure servomotor-control systems. AVERY-HARDOLL Ltd. Aug. 11, 1961 [Aug. 15, 1960; Oct. 26, 1960], Nos. 28234/60 and 36767/60. Class 135. Apparatus for dispensing a mixture of two liquids, such as petrol, in predetermined proportions comprises pumps 10, 11, Fig. 1, which deliver the liquids through flow-control valves 19, 21 and flowmeters 22, 23 to pipes 24, 25 leading to a common outlet nozzle. Each flowcontrol valve 19, 21, Fig. 3, comprises a valve closure member 49, loaded by a spring 56 towards its seat 48 and opened by the delivery from the pump acting on a surface 52, the delivery being admitted through ports (not shown) in the valve housing 47. The valve member 49 allows leakage to a control chamber 55 to allow liquid to act in a valve closing direction and the leakage from this chamber is controlled by a pilot valve formed by a hollow stem 67 co-operating with a piston member 62. The piston member 62 is loaded by a spring 64 and carries a mushroom head 59 which is smaller than the smallest end of a tapered sleeve 61 fixed to the valve member 49. When the flow through the valve reaches a predetermined value, the head 59 is moved against the spring 64 to move the piston 62 away from the stem 67 thus allowing more leakage from the chamber 55 and the valve 49 opens further, thus for a given position of the stem 67 the opening of the valve 49 depends on the flow through it, but this rate of flow depends on the position of the stem 67. By providing an adjustable path of entry to the chamber 55 the two flow-control valves may be matched. The positions of the stems 67 are adjusted by levers 43, Fig. 1. The speed of rotation of the flowmeters 22, 23 are fed through shafts 28, 35 and 29 to elements of a.differential gear 36, the sum of the speeds being transmitted through shaft 41 and bevel gears 39 to one element of the differential gear 37. A second element of the gear 37 is fed from shaft 28 through a change of speed gear-box 42 and the output of the gear 37 actuates the levers 43 to adjust the stems to maintain the required flow proportions set by the gear box 42. The gear-box is set by a knob 80 which also arranges that one or other of the electric motors 12, 13 driving the pumps is not actuated at two positions of the knob when a switch is actuated. The gearing may also actuate computers for total flow and cost.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2823460A GB917771A (en) | 1960-08-15 | 1960-08-15 | Improvements in or relating to apparatus for dispensing mixtures of two liquids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2823460A GB917771A (en) | 1960-08-15 | 1960-08-15 | Improvements in or relating to apparatus for dispensing mixtures of two liquids |
Publications (1)
Publication Number | Publication Date |
---|---|
GB917771A true GB917771A (en) | 1963-02-06 |
Family
ID=10272448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2823460A Expired GB917771A (en) | 1960-08-15 | 1960-08-15 | Improvements in or relating to apparatus for dispensing mixtures of two liquids |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB917771A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3424348A (en) * | 1967-02-17 | 1969-01-28 | Dresser Ind | Blend control unit interlock |
-
1960
- 1960-08-15 GB GB2823460A patent/GB917771A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3424348A (en) * | 1967-02-17 | 1969-01-28 | Dresser Ind | Blend control unit interlock |
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