GB838684A - Improvements in and relating to actuators for electrical switches - Google Patents
Improvements in and relating to actuators for electrical switchesInfo
- Publication number
- GB838684A GB838684A GB2724658A GB2724658A GB838684A GB 838684 A GB838684 A GB 838684A GB 2724658 A GB2724658 A GB 2724658A GB 2724658 A GB2724658 A GB 2724658A GB 838684 A GB838684 A GB 838684A
- Authority
- GB
- United Kingdom
- Prior art keywords
- knob
- actuator
- lug
- indicator
- slider
- 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
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
Landscapes
- Spectrometry And Color Measurement (AREA)
Abstract
838,684. Indicators for switches. WELWYN ELECTRICAL LABORATORIES Ltd. Aug. 25, 1958, No. 27246/58. Addition to 836,264. Class 38 (5). A switch 16, as in the parent Specification, has a V-form abutment member 19, the arms of which are alternately engaged by a trigger member 10 to change the condition of the switch upon successive actuations of a knob 8. The trigger 10 has a lug 11 accommodated in a slot 12 in a slidable actuator member 6 and retained against one end 13 of the slot 12 by a spring 24 which thereby also serves to retract the member 6. When knob 8 is pushed the trigger 10, in moving the V-member to its alternate position, swings to one side, the lug 11 being re-seated in slot 12 upon retraction of actuator 6. The knob 8 has a rectangular tunnel in which is slidably located an indicator member 37 of different colour to the knob 8 and/or carrying the word ON while the sill of the tunnel at the inclined corner surface 38 carries the word OFF. The indicator 37 is displaceable by an extension 39 of a slider 28 overlying actuator 6 and having a lug 33 (Fig. 2) engaged by a light spring 30 and a lug 35 (Fig. 1) which can enter a recess 36 in the side of actuator 6. When the switch is operated such that the V-member 19 moves clockwise (Fig. 1) the arm 20 thereof and/or the corner of trigger 10 disengages the lug 35 from recess 36. When actuator 6 is retracted the spring 30 holds the slider 28 stationary and hence the indicator 37 is hidden in the tunnel in knob 8. On the next actuation the V-member 19 is moved anticlockwise, allowing lug 35 to re-enter recess 36 and the slider 28 is moved back with actuator 6, and indicator 37 is thus visible at the edge 38 of knob 8. In a modification, the actuator 6 may be mounted for angular movement on an arm pivoted about one of the bolts or rivets 17, 17a, a suitable knob being provided, and the slider 28 being connected by a lever to an indicator movable from side-to-side within the knob.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2724658A GB838684A (en) | 1958-08-25 | 1958-08-25 | Improvements in and relating to actuators for electrical switches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2724658A GB838684A (en) | 1958-08-25 | 1958-08-25 | Improvements in and relating to actuators for electrical switches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB838684A true GB838684A (en) | 1960-06-22 |
Family
ID=10256479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2724658A Expired GB838684A (en) | 1958-08-25 | 1958-08-25 | Improvements in and relating to actuators for electrical switches |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB838684A (en) |
-
1958
- 1958-08-25 GB GB2724658A patent/GB838684A/en not_active Expired
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