GB659679A - An improved time switch - Google Patents
An improved time switchInfo
- Publication number
- GB659679A GB659679A GB21439/49A GB2143949A GB659679A GB 659679 A GB659679 A GB 659679A GB 21439/49 A GB21439/49 A GB 21439/49A GB 2143949 A GB2143949 A GB 2143949A GB 659679 A GB659679 A GB 659679A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arm
- shaft
- pin
- wheel
- energization
- 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
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F3/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork
- G04F3/06—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork with electric driving mechanisms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
Abstract
659,679. Time switches. LANDIS & GYR SOC. ANON. Aug. 17, 1949, No. 21439. Convention date, Aug. 19, 1948. [Class 38(v)] Energization of an electromagnet 1 causes a wheel 36 driven by a synchronous motor 3 to be coupled to a wheel 37 which thereupon drives a shaft 6 which through differential gearing 19, 20, 21 drives a preset arm 27 so that at a predetermined time the arm engages a pin 28 and releases a switch member 5 which, in addition to making a signalling or other circuit, breaks the circuit of the electromagnet 1; this causes the wheels 36, 37 to revert to their uncoupled state and the shaft 6 rotates backwards under the influence of a spring 8 which has been strained by the forward movement causing the arm 27 to move away from the pin 28, but this is held latched by the member 5, 32, engaging behind a projection 31 till just as the starting position of the shaft 6 is being reached a pin 13 on the shaft operates an arm 15 which by means of a pin 16 lifts the switch back into its original position. At this moment also a pin 44 on the shaft 6 moves an arm 46 away from under the end 47 of a lever 39 so that the recoupling of the wheels 36, 37, which now tends to occur owing to the re-energization of the magnet 1, is only now possible. Time setting is effected by an arm 25 which through gearing 24, 23 rotates the sun wheel 20 and thence the shaft 26 carrying the arm 27.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH659679X | 1948-08-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB659679A true GB659679A (en) | 1951-10-24 |
Family
ID=4526788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21439/49A Expired GB659679A (en) | 1948-08-19 | 1949-08-17 | An improved time switch |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB659679A (en) |
-
1949
- 1949-08-17 GB GB21439/49A patent/GB659679A/en not_active Expired
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