GB1305287A - - Google Patents
Info
- Publication number
- GB1305287A GB1305287A GB2488670A GB2488670A GB1305287A GB 1305287 A GB1305287 A GB 1305287A GB 2488670 A GB2488670 A GB 2488670A GB 2488670 A GB2488670 A GB 2488670A GB 1305287 A GB1305287 A GB 1305287A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bellows
- spring
- contacts
- carrier
- actuator
- 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
- H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
- H01H43/24—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a non-rotatable moving part
- H01H43/28—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a non-rotatable moving part the actuation being produced by a part, the speed of which is controlled by fluid-pressure means, e.g. by piston and cylinder
- H01H43/285—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a non-rotatable moving part the actuation being produced by a part, the speed of which is controlled by fluid-pressure means, e.g. by piston and cylinder adjusting the time interval by means of an adjustable orifice, e.g. needle valve
Landscapes
- Switches Operated By Changes In Physical Conditions (AREA)
- Diaphragms And Bellows (AREA)
Abstract
1305287 Time delay electric switch ARROWHART (EUROPE) Ltd 22 May 1970 [23 May 1969] 24886/70 Heading H1N An electric switch unit, which may be part of an electromagnetic relay and be arranged with its contacts in series with the relay coil so that the coil circuit is interrupted for a set time after de-energization of the coil, has a pneumatic time delay device comprising a bellows 20 arranged to collapse on actuation and extend, at a rate dependent on the size of an adjustable orifice 34, on release. The check valve is similar to that described in Specification 1,305,112 and has a spring 28 urging the bellows end 21 against a disc member 34. The orifice size is controlled by an adjustable pin 32. The bellows 20 is biased to the extended position by a spring 22 of sufficient strength to overcome a spring 23 so that a carrier 19 on which the spring 23 acts is held in a position such that the snap-action contact arms 13 thereon engage fixed contacts 18. When the relay coil (not shown) is energized, the actuator 40 is moved downward and a projection 66 thereof engages the carrier 19 to hold the contacts in the position referred to above. As the actuator is moved downward connected arms 61, 62 are rotated about fixed pivots 63 and their inner ends engage a washer 27 fixed on the plunger 26 of the bellows so as to collapse the bellows. When the relay coil is de-energized the actuator is released so that the spring 23 moves the carrier 19 upward to change-over the contacts 13, and the bellows are also released so that after a set time the bellows plunger 26 engages the carrier 19 to reset the contacts to the position shown.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US82736369A | 1969-05-23 | 1969-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1305287A true GB1305287A (en) | 1973-01-31 |
Family
ID=25249026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2488670A Expired GB1305287A (en) | 1969-05-23 | 1970-05-22 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3585321A (en) |
| AU (1) | AU1525870A (en) |
| GB (1) | GB1305287A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE791256A (en) * | 1971-11-10 | 1973-05-10 | Siemens Ag | SWITCH ESPECIALLY FOR TELECOMMUNICATIONS INSTALLATIONS |
| FR2162271B1 (en) * | 1971-12-08 | 1974-06-07 | Telemecanique Electrique | |
| US3814872A (en) * | 1972-04-24 | 1974-06-04 | Polaroid Corp | Remote control system for photographic apparatus |
| US4038619A (en) * | 1975-10-01 | 1977-07-26 | Cutler-Hammer, Inc. | Pneumatic timer |
| US4303147A (en) * | 1978-04-12 | 1981-12-01 | Allen-Bradley Company | Adjustment for pneumatic timer |
| US4181829A (en) * | 1978-04-12 | 1980-01-01 | Allen-Bradley Company | Time delay switch actuating mechanism |
| US4655313A (en) * | 1985-08-26 | 1987-04-07 | Outboard Marine Corporation | Vehicle seat switch |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2543090A (en) * | 1945-10-08 | 1951-02-27 | Fed Electric Prod Co | Switch |
| NL108432C (en) * | 1959-03-23 | 1900-01-01 | ||
| US3178524A (en) * | 1962-04-20 | 1965-04-13 | Bliss E W Co | Pneumatically timed electric switch arrangement |
| US3209094A (en) * | 1962-11-05 | 1965-09-28 | Robertshaw Controls Co | Pressure switch with high and low pressure spring adjustments |
| US3268675A (en) * | 1964-10-19 | 1966-08-23 | Furnas Electric Co | Actuator for bellows type time delay switch |
-
1969
- 1969-05-23 US US827363A patent/US3585321A/en not_active Expired - Lifetime
-
1970
- 1970-05-19 AU AU15258/70A patent/AU1525870A/en not_active Expired
- 1970-05-22 GB GB2488670A patent/GB1305287A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3585321A (en) | 1971-06-15 |
| AU1525870A (en) | 1971-11-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| PCNP | Patent ceased through non-payment of renewal fee |