GB868811A - Improvements in or relating to electric circuit-controllers - Google Patents
Improvements in or relating to electric circuit-controllersInfo
- Publication number
- GB868811A GB868811A GB33137/57A GB3313757A GB868811A GB 868811 A GB868811 A GB 868811A GB 33137/57 A GB33137/57 A GB 33137/57A GB 3313757 A GB3313757 A GB 3313757A GB 868811 A GB868811 A GB 868811A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- bracket
- spring
- bobbin
- rods
- 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
- H01H43/12—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 a single cycle of operation
- H01H43/121—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 a single cycle of operation using a drum
Landscapes
- Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
- Adjustable Resistors (AREA)
- Looms (AREA)
Abstract
868,811. Time switches. McCORQUODALE & CO. Ltd. Oct. 21, 1958 [Oct. 23, 1957], No. 33137/57. Class 38 (5). A device which operates on a time basis to control a number of circuits automatically at predetermined intervals, comprises a row of helically grooved metal bobbins 15 mounted on a shaft 12 which is rotated in uprights 14 by an electric motor 11 and reduction gearing 13. Each bobbin controls a switch 19 by means of helical metal rods 37, whose lengths and positions in the bobbin groove may be varied to obtain any desired switching sequence, Fig. 4 (not shown). These rods engage an actuator 22 to close the contacts 21 of spring blades 20, which are secured to a bar 16 mounted on a bracket 29. Each end of this bracket has a lug 30 pivoted at 17, 18 to the uprights 14, the lug pivoted at 17 having an extension 31 connected by a spring 32 to an arm 25. Springs 33, 35 resiliently secure the bracket 29 to a cross-bar 34 and stops 36 engage the bracket ends. The arm 25 is pivoted at 26 and has a part-circular lead screw, which normally is coupled to a thread 24 on the shaft 12 by the pull of a spring 27, the pitch of the thread 24 being equal to that of the bobbin grooves. This coupling causes the shaft 12, upon rotation, to move to the right, this movement being permitted by slots 45 in the shaft and opposed by a spring 42. In operation the shaft 12 moves from its extreme left position to produce a desired switching sequence and on completion a disc 46 engages first a switch roller 47 to indicate such completion, and then a switch roller 48 to stop the motor 11, the shaft and bobbins stopping in the same angular position in which they started. A lever 28 on the arm 25 is now raised to rotate bracket 29 and lift switches 19, and allow spring 42 to return members 12, 15 to their starting position. The rods 37 may be soldered to the bobbins 15, or if sufficiently long, may form resilient clips sprung into the groove of the bobbin. If desired the rods 37 may form moving switch contacts which engage the conducting brush of a single stationary switch blade.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB33137/57A GB868811A (en) | 1957-10-23 | 1957-10-23 | Improvements in or relating to electric circuit-controllers |
| US768920A US2978547A (en) | 1957-10-23 | 1958-10-22 | Electric circuit controllers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB33137/57A GB868811A (en) | 1957-10-23 | 1957-10-23 | Improvements in or relating to electric circuit-controllers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB868811A true GB868811A (en) | 1961-05-25 |
Family
ID=10349021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33137/57A Expired GB868811A (en) | 1957-10-23 | 1957-10-23 | Improvements in or relating to electric circuit-controllers |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2978547A (en) |
| GB (1) | GB868811A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937791B (en) * | 2009-06-29 | 2013-03-20 | 西门子公司 | Control device of isolating switch |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2172623A (en) * | 1939-09-12 | Automatic station selector fob | ||
| BE386934A (en) * | 1931-03-04 | |||
| US2641661A (en) * | 1951-11-01 | 1953-06-09 | Mallory & Co Inc P R | Lateral timer switch |
| US2818473A (en) * | 1955-04-22 | 1957-12-31 | Counter And Control Corp | Automatic program controller |
-
1957
- 1957-10-23 GB GB33137/57A patent/GB868811A/en not_active Expired
-
1958
- 1958-10-22 US US768920A patent/US2978547A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2978547A (en) | 1961-04-04 |
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