GB669079A - Improvements in or relating to electric switches having sequentially operated contacts - Google Patents
Improvements in or relating to electric switches having sequentially operated contactsInfo
- Publication number
- GB669079A GB669079A GB2594049A GB2594049A GB669079A GB 669079 A GB669079 A GB 669079A GB 2594049 A GB2594049 A GB 2594049A GB 2594049 A GB2594049 A GB 2594049A GB 669079 A GB669079 A GB 669079A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- circuit
- oct
- pairs
- relating
- 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
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
- H01H13/64—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member wherein the switch has more than two electrically distinguishable positions, e.g. multi-position push-button switches
- H01H13/66—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member wherein the switch has more than two electrically distinguishable positions, e.g. multi-position push-button switches the operating member having only two positions
Landscapes
- Push-Button Switches (AREA)
Abstract
669,079. Press-button retractive switches. BRITISH FEDERAL WELDER & MACHINE CO., Ltd., and TRIBE, T. F. Oct. 10, 1950. [Oct. 10, 1949] No. 25940/49. Class 38 (v). A switch, suitable for controlling in sequence a circuit controlling welding electrodes and a circuit to close the welding circuit, comprises four bars 11 arranged oppositely in pairs (only two being shown) and having two pairs of contacts 17 arranged to be bridged in succession by contacts' 32, 37. The latter are carried by insulating discs 30, 36 respectively slidable on a sleeve 21 and a fixed rod 20 upon which the sleeve is slidable. Depression of push button 23 first compresses springs 35, 38 until contacts 17, 32 engage, and then compresses a heavier spring 29, thereby engaging the contact 37 with the other pair of contacts 17, any further movement of the push button merely compressing springs 29, 35 still further. The contacts may all be normally closed, or some normally closed and some normally open, or all normally open (as shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2594049A GB669079A (en) | 1949-10-10 | 1949-10-10 | Improvements in or relating to electric switches having sequentially operated contacts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2594049A GB669079A (en) | 1949-10-10 | 1949-10-10 | Improvements in or relating to electric switches having sequentially operated contacts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB669079A true GB669079A (en) | 1952-03-26 |
Family
ID=10235787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2594049A Expired GB669079A (en) | 1949-10-10 | 1949-10-10 | Improvements in or relating to electric switches having sequentially operated contacts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB669079A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745129A (en) * | 2012-05-25 | 2012-10-24 | 陈振明 | Automobile whistle device with weight volume |
-
1949
- 1949-10-10 GB GB2594049A patent/GB669079A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745129A (en) * | 2012-05-25 | 2012-10-24 | 陈振明 | Automobile whistle device with weight volume |
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