GB1322402A - 4-way control valve - Google Patents
4-way control valveInfo
- Publication number
- GB1322402A GB1322402A GB2282072A GB2282070A GB1322402A GB 1322402 A GB1322402 A GB 1322402A GB 2282072 A GB2282072 A GB 2282072A GB 2282070 A GB2282070 A GB 2282070A GB 1322402 A GB1322402 A GB 1322402A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- chamber
- control valve
- passage
- way control
- 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
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/18—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors used in combination for obtaining stepwise operation of a single controlled member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
-
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/022—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising a deformable member
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/10—Projectors with built-in or built-on screen
- G03B21/11—Projectors with built-in or built-on screen for microfilm reading
- G03B21/115—Projectors with built-in or built-on screen for microfilm reading of microfiches
- G03B21/116—Handling microfiches
Abstract
1322402 Valves UNIVERSITY OF ILLINOIS FOUNDATION 18 Aug 1970 [18 Aug 1969] 22820/72 Divided out of 1322401 Heading F2V Operation of solenoid 103 acts to close one of the pilot valves 100, 102 and open the other. Pressure in one outlet passage 94, 114 and one chamber 92, 106 rises while the pressure in the other passage and chamber falls so that a diaphragm 104 is flexed to close the inlet passage 108, 86 entering the chamber at the lower pressure. Pressure inlet 84 is thus connectable to opposite sides of a piston 120. The valve is used to position a playback head, as described in Specification 1,322,401 (Division G4-G6).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2282070A GB1341958A (en) | 1971-04-19 | 1971-04-19 | Controlling the growth of plants |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US85096569A | 1969-08-18 | 1969-08-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1322402A true GB1322402A (en) | 1973-07-04 |
Family
ID=25309584
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3977170A Expired GB1322401A (en) | 1969-08-18 | 1970-08-18 | Random access selection apparatus |
GB2282072A Expired GB1322402A (en) | 1969-08-18 | 1971-04-19 | 4-way control valve |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3977170A Expired GB1322401A (en) | 1969-08-18 | 1970-08-18 | Random access selection apparatus |
Country Status (4)
Country | Link |
---|---|
US (1) | US3641529A (en) |
JP (1) | JPS5035635B1 (en) |
CA (1) | CA922203A (en) |
GB (2) | GB1322401A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3779267A (en) * | 1971-07-26 | 1973-12-18 | Leesona Corp | Fluid operated logic device |
US3789864A (en) * | 1973-04-09 | 1974-02-05 | Leesona Corp | Fluid operated system |
US4020506A (en) * | 1975-06-30 | 1977-04-26 | International Business Machines Corporation | Tape cartridge with track position indicator |
US4669014A (en) * | 1983-01-31 | 1987-05-26 | Gill Cantwell | Alignment system for magnetic disc drive |
GB8826867D0 (en) * | 1988-11-17 | 1988-12-21 | Normalair Garrett Ltd | Fluid compressors |
US5617267A (en) * | 1994-12-15 | 1997-04-01 | Kabushiki Kaisha Toshiba | Servo data writing apparatus for supporting the free end of a rotating shaft in a magnetic disk device and method of writing servo data |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL230116A (en) * | 1957-08-08 | 1900-01-01 | ||
US3177476A (en) * | 1961-05-29 | 1965-04-06 | Rca Corp | Information storage apparatus utilizing a record of internally reflective, light conducting material |
US3153241A (en) * | 1961-08-31 | 1964-10-13 | Lab For Electronics Inc | Magnetic recorder |
US3298008A (en) * | 1963-04-17 | 1967-01-10 | Anelex Corp | Coarse and fine head positioning apparatus for random access disc memory system |
US3449734A (en) * | 1965-04-28 | 1969-06-10 | Mohawk Data Sciences Corp | Positioning apparatus for a random access storage device using a dual-frequency reference track |
-
1969
- 1969-08-18 US US850965A patent/US3641529A/en not_active Expired - Lifetime
-
1970
- 1970-08-17 JP JP45071447A patent/JPS5035635B1/ja active Pending
- 1970-08-18 CA CA091059A patent/CA922203A/en not_active Expired
- 1970-08-18 GB GB3977170A patent/GB1322401A/en not_active Expired
-
1971
- 1971-04-19 GB GB2282072A patent/GB1322402A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5035635B1 (en) | 1975-11-18 |
CA922203A (en) | 1973-03-06 |
US3641529A (en) | 1972-02-08 |
GB1322401A (en) | 1973-07-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |