GB633638A - Improvements in or relating to fluid pressure actuated electric switches - Google Patents
Improvements in or relating to fluid pressure actuated electric switchesInfo
- Publication number
- GB633638A GB633638A GB8255/47A GB825547A GB633638A GB 633638 A GB633638 A GB 633638A GB 8255/47 A GB8255/47 A GB 8255/47A GB 825547 A GB825547 A GB 825547A GB 633638 A GB633638 A GB 633638A
- Authority
- GB
- United Kingdom
- Prior art keywords
- capsule
- spring
- solenoid
- contact
- core
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
- H01H35/30—Means for transmitting pressure to pressure-responsive operating part, e.g. by capsule and capillary tube
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/005—Electro-mechanical devices, e.g. switched
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
633,638. Control systems for consumption apparatus. BENDIX AVIATION CORPORATION. March 26, 1947, No. 8255. Convention date, April 25, 1946. [Class 38 (iv)] [Also in Group XXXVII] Switching control.-In a switching system, a pressure-operated switch opening and closing at different pressures and suitable for use in aircraft, comprises an evacuated capsule 13 mounted in a sealed casing 11 connected at 20 to an air pipe-line. A solenoid 12 also mounted in the casing has a core 47 returned by a spring 48 so as to compress a weaker spring 55 situated between the capsule 13 and a collar 53 screwed on to the end of the core 47. As the air pressure falls, the capsule expands against the spring 55 and a contact 60 on the capsule engages an adjustable pointed contact 28 to close the solenoid circuit. The core 47 then moves to the right causing a contact 51 carried by it to disengage contacts 42 controlling a load 67 and engage contacts 40 controlling a load 68, this movement also relieving the compression of the spring 55 on the capsule 13. Separation of the contacts 28, 60 to de-energize the solenoid and return the contact 51 cannot now take place until the pressure rises above that at which the solenoid was energized, since during the expansion of the capsule to energize the solenoid the force of spring 55 had to be overcome and thus the air pressure required was less than would have been necessary had there been no spring.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US664718A US2522596A (en) | 1946-04-25 | 1946-04-25 | Altitude switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB633638A true GB633638A (en) | 1949-12-19 |
Family
ID=24667178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8255/47A Expired GB633638A (en) | 1946-04-25 | 1947-03-26 | Improvements in or relating to fluid pressure actuated electric switches |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2522596A (en) |
| FR (1) | FR945660A (en) |
| GB (1) | GB633638A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2911573A (en) * | 1949-11-16 | 1959-11-03 | Rabinow Jacob | Multiple point altimeter for use with toss bombing integrators |
| US2725446A (en) * | 1950-11-18 | 1955-11-29 | Westinghouse Electric Corp | Circuit interrupter |
| US2931874A (en) * | 1953-10-08 | 1960-04-05 | Audley B Leaman | Explosive switch |
| US2990780A (en) * | 1959-02-16 | 1961-07-04 | Robertshaw Fulton Controls Co | Control for fluid system |
| US2986617A (en) * | 1959-03-16 | 1961-05-30 | Westinghouse Air Brake Co | Fluid compressor motor control apparatus |
| US3046369A (en) * | 1959-04-27 | 1962-07-24 | Beatrice A Hicks | Device for sensing gas density |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1880859A (en) * | 1932-10-04 | Automatic starting means fob internal combustion engines | ||
| US953028A (en) * | 1907-09-26 | 1910-03-29 | Alfred C Griscom | Automatic switch mechanism. |
| US1922452A (en) * | 1932-05-05 | 1933-08-15 | Vapor Car Heating Co Inc | Automatic reclosing circuit breaker and indicator |
| GB454931A (en) * | 1935-04-06 | 1936-10-06 | George Maurice Wright | Improvements in altimeters for use in aircraft |
| US2448167A (en) * | 1942-12-12 | 1948-08-31 | Honeywell Regulator Co | Flap control device responsive to air speed |
-
1946
- 1946-04-25 US US664718A patent/US2522596A/en not_active Expired - Lifetime
-
1947
- 1947-03-26 GB GB8255/47A patent/GB633638A/en not_active Expired
- 1947-04-25 FR FR945660D patent/FR945660A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2522596A (en) | 1950-09-19 |
| FR945660A (en) | 1949-05-11 |
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