GB388749A - Improvements in and relating to quick-action electric switches - Google Patents
Improvements in and relating to quick-action electric switchesInfo
- Publication number
- GB388749A GB388749A GB2424831A GB2424831A GB388749A GB 388749 A GB388749 A GB 388749A GB 2424831 A GB2424831 A GB 2424831A GB 2424831 A GB2424831 A GB 2424831A GB 388749 A GB388749 A GB 388749A
- Authority
- GB
- United Kingdom
- Prior art keywords
- boss
- actuating member
- quick
- projecting
- pin
- 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
- H01H21/04—Cases; Covers
- H01H21/10—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch
Landscapes
- Push-Button Switches (AREA)
- Tumbler Switches (AREA)
- Surgical Instruments (AREA)
Abstract
388,749. Snap-action retractive switches. VIDAL, C. H., St. Andrews Works, Slough, Buckinghamshire, and LUCAS, Ltd., J., Great King Street, Birmingham. Aug. 28, 1931, No. 24248. [Class 38 (v).] In a quick-action switch, for use more especially with electrically operated tools, a hollow cup-shaped actuating member i carrying a finger trigger j is mounted by means of an internal boss y on a pin h projecting from the side of a hollow casing a, c forming a handle of the tool &c. Moving contacts n co-operating with fixed contacts e are carried by an arm m mounted on a boss l placed over the boss y, and compression springs q disposed between the actuating member i and boss l tranamit rapid switching motion from the former to the latter. The actuating member i is returned to inoperative position when the trigger j is released, by a tension spring k, but may be retained in operative position by a spring plunger s projecting through the casing which may be depressed into a hole in the member i. The bosses l, y are held on the pin h by a spring blade p carried by a pillar o.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2424831A GB388749A (en) | 1931-08-28 | 1931-08-28 | Improvements in and relating to quick-action electric switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2424831A GB388749A (en) | 1931-08-28 | 1931-08-28 | Improvements in and relating to quick-action electric switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB388749A true GB388749A (en) | 1933-02-28 |
Family
ID=10208759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2424831A Expired GB388749A (en) | 1931-08-28 | 1931-08-28 | Improvements in and relating to quick-action electric switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB388749A (en) |
-
1931
- 1931-08-28 GB GB2424831A patent/GB388749A/en not_active Expired
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