GB495643A - Improvements in or connected with electric push button switches - Google Patents
Improvements in or connected with electric push button switchesInfo
- Publication number
- GB495643A GB495643A GB1347737A GB1347737A GB495643A GB 495643 A GB495643 A GB 495643A GB 1347737 A GB1347737 A GB 1347737A GB 1347737 A GB1347737 A GB 1347737A GB 495643 A GB495643 A GB 495643A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- collars
- push
- spring
- sleeve
- 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
- H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
- H01H15/02—Details
- H01H15/06—Movable parts; Contacts mounted thereon
- H01H15/10—Operating parts
- H01H15/102—Operating parts comprising cam devices
Landscapes
- Switches With Compound Operations (AREA)
Abstract
495,643. Press - button retractive switches. M. & C. SWITCHGEAR, Ltd., and MORRISON, R. May 13, 1937, No. 13477. [Class 38 (v)] An electric push-button switch for use in remote control systems, has two push-members arranged concentrically to provide in operation three different circuit conditions. A pushmember C with a head 3 for manual operation, fits slidably in a sleeve A and carries insulating collars 8 which limit its movement under pressure of a spring 6. Similarly, a second push-member D which slides concentrically through the member C has a head 5, and insulating collars 9 to limit its movement under pressure of a spring 7. Spring contact blades 10, 11, 12 and 13 are secured to the underside of sleeve A, contacts 12 and 13 being normally closed until collars 8 move to press down blade 12 and open them, while the normally open contacts 10 and 11 are closed by the engagement of collars 9 with the blade 11. In the normal position as shown, a small secondary current flows through contacts 12 and 13 sufficient for running conditions after starting has been effected by closure of contacts 10 and 11 to increase the current by cutting out a resistance, while opening of contacts 12 and 13 breaks the circuit to stop the machinery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1347737A GB495643A (en) | 1937-05-13 | 1937-05-13 | Improvements in or connected with electric push button switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1347737A GB495643A (en) | 1937-05-13 | 1937-05-13 | Improvements in or connected with electric push button switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB495643A true GB495643A (en) | 1938-11-14 |
Family
ID=10023679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1347737A Expired GB495643A (en) | 1937-05-13 | 1937-05-13 | Improvements in or connected with electric push button switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB495643A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2286924A (en) * | 1994-02-23 | 1995-08-30 | Delta Schoeller Ltd | Electrical switch |
-
1937
- 1937-05-13 GB GB1347737A patent/GB495643A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2286924A (en) * | 1994-02-23 | 1995-08-30 | Delta Schoeller Ltd | Electrical switch |
| GB2286924B (en) * | 1994-02-23 | 1998-01-07 | Delta Schoeller Ltd | Electrical switch |
| DE19506896B4 (en) * | 1994-02-23 | 2004-08-12 | Stoneridge-Pollak Ltd. | Electrical switch |
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