GB941432A - Switching arrangement for the electric control of machines - Google Patents
Switching arrangement for the electric control of machinesInfo
- Publication number
- GB941432A GB941432A GB2359863A GB2359863A GB941432A GB 941432 A GB941432 A GB 941432A GB 2359863 A GB2359863 A GB 2359863A GB 2359863 A GB2359863 A GB 2359863A GB 941432 A GB941432 A GB 941432A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- control
- transformer
- limb
- energized
- 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
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/18—Movable parts; Contacts mounted thereon
- H01H21/22—Operating parts, e.g. handle
- H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
- H01H21/28—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
Landscapes
- Automatic Cycles, And Cycles In General (AREA)
Abstract
941,432. Transformers. K. MAECKER. Dec. 23, 1959, No. 23598/63. Divided out of 941,431. Heading H1T. One or more relays 9 (Fig. 1) for machine control are energized by, or under the control of, a transformer having a primary winding 5 on one limb and at least one other limb 6 carrying a secondary winding 7, a core member 2 adapted to tilt about a pin 3 disposed at right-angles to a longitudinal central plane extending through the core being movable between two positions in one of which a relay 9 is energized. An extra secondary winding feeding another relay may be arranged on a further limb 10. Fig. 4 shows the transformer enclosed in a plastic or aluminium " limit switch " housing 20, the movable yoke 2 being operated by a fork 16 which is actuated through a lever and cam arrangement by a roller 21 when the latter is struck by a moving part on the machine to be controlled. The movable yoke may be moved manually. It may be moved gradually by a toothed segment and gear-wheel (Fig. 8, not shown) or the snap - action caused by the magnetic attraction may be increased by a spring (Figs. 5 and 5a, not shown). The relay may be designed for A.C. and shunted by a capacitor. Instead of feeding the relay(s) direct the transformer may energize or control the energization of the control winding of a magnetic amplifier (Fig. 7, not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2359863A GB941432A (en) | 1959-12-23 | 1959-12-23 | Switching arrangement for the electric control of machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2359863A GB941432A (en) | 1959-12-23 | 1959-12-23 | Switching arrangement for the electric control of machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB941432A true GB941432A (en) | 1963-11-13 |
Family
ID=10198257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2359863A Expired GB941432A (en) | 1959-12-23 | 1959-12-23 | Switching arrangement for the electric control of machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB941432A (en) |
-
1959
- 1959-12-23 GB GB2359863A patent/GB941432A/en not_active Expired
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