GB1362888A - Motor-driven time switch - Google Patents
Motor-driven time switchInfo
- Publication number
- GB1362888A GB1362888A GB2670572A GB2670572A GB1362888A GB 1362888 A GB1362888 A GB 1362888A GB 2670572 A GB2670572 A GB 2670572A GB 2670572 A GB2670572 A GB 2670572A GB 1362888 A GB1362888 A GB 1362888A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- knob
- motor
- gear
- until
- 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
- H01H43/10—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 part rotating at substantially constant speed
- H01H43/103—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 part rotating at substantially constant speed stopping automatically after one preselected time interval
- H01H43/105—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 part rotating at substantially constant speed stopping automatically after one preselected time interval by electromechanical coupling device
Landscapes
- Measurement Of Predetermined Time Intervals (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
1362888 Time switches DIEHL 8 June 1972 [18 June 1971] 26705/72 Heading H1N A motor driven time switch having a manually operable member for setting a time interval is provided with means operable to prevent such manual adjustment during a timing operation. As shown, rotation of knob 4, and hence shaft 3, clockwise causes arm 10 to entrain disc 9 (by means of its interior "dog" 25) and rotate it until cam lobe 26 abuts a stop 24 whereat contacts 27 are closed and synchronous motor 13 is energized. This drives gear 7 via reduction gearing 12 and, through friction clutch 8, returns shaft 3 until arm 10 engages the other side of "dog" 25 and entrains disc 9 to open contacts 27. A rotary coupling member 20 continuously engaged with a gear 6 on shaft 3 is axially movable by a device 23 to engage the gear 7, thus providing a rigid coupling from motor 13 to shaft 3 whereby manual rotation of knob 4 is prevented. The device 23 may be operated, for example, by changes in voltage, air pressure or moisture content. In another embodiment (Fig. 2, not shown) the friction clutch 8 is omitted so that the shaft 3 and knob 4 do not commence the return to the start position until device 23 couples gears 6 and 7. In each embodiment, after full clockwise movement to energize motor 13, the knob 4 can be adjusted to set a desired time interval prior to the coupling by device 23, but not thereafter.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712130010 DE2130010A1 (en) | 1971-06-18 | 1971-06-18 | Time switch for performing mechanical work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1362888A true GB1362888A (en) | 1974-08-07 |
Family
ID=5810975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2670572A Expired GB1362888A (en) | 1971-06-18 | 1972-06-08 | Motor-driven time switch |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2130010A1 (en) |
| FR (1) | FR2151825A5 (en) |
| GB (1) | GB1362888A (en) |
-
1971
- 1971-06-18 DE DE19712130010 patent/DE2130010A1/en active Pending
-
1972
- 1972-06-08 GB GB2670572A patent/GB1362888A/en not_active Expired
- 1972-06-12 FR FR7221022A patent/FR2151825A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2130010A1 (en) | 1972-12-28 |
| FR2151825A5 (en) | 1973-04-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |