GB561824A - Improvements in and relating to electric push button switches - Google Patents
Improvements in and relating to electric push button switchesInfo
- Publication number
- GB561824A GB561824A GB326043A GB326043A GB561824A GB 561824 A GB561824 A GB 561824A GB 326043 A GB326043 A GB 326043A GB 326043 A GB326043 A GB 326043A GB 561824 A GB561824 A GB 561824A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- stem
- spring
- contacts
- button
- 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
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F1/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Push-Button Switches (AREA)
Abstract
561,824. Press 'button retractive switches. BLACKBURN AIRCRAFT, Ltd., and METCALFE, F. Feb. 27, 1943, No. 3260. [Class 38 (v)] A retractive switch has at least two contact members adapted.to bridge pairs of contacts simultaneously, and dash-pot means for retarding'the return of at least one of the contact closing members. Thus, in the example, the contact member 7, displaceable against a spring 5 on a stem 3 and a further contact member 8 displaceable against a spring 6 on a second, co-axial stem 4 and connected to a dashpot device 14 so that on pressing button 2 the contacts are simultaneously closed and the dashpot operated to drive air from a cylinder 15 through a non-return valve 16, while, on releasing the button, contact 7 opens its contacts immediately but stem 4 separates from stem 3 and spring 19 returns contact 8 after an interval determined by the setting of a needle valve 21.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB326043A GB561824A (en) | 1943-02-27 | 1943-02-27 | Improvements in and relating to electric push button switches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB326043A GB561824A (en) | 1943-02-27 | 1943-02-27 | Improvements in and relating to electric push button switches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB561824A true GB561824A (en) | 1944-06-06 |
Family
ID=9754968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB326043A Expired GB561824A (en) | 1943-02-27 | 1943-02-27 | Improvements in and relating to electric push button switches |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB561824A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3169410A (en) * | 1961-09-18 | 1965-02-16 | Gen Electric | Actuating mechanisms |
-
1943
- 1943-02-27 GB GB326043A patent/GB561824A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3169410A (en) * | 1961-09-18 | 1965-02-16 | Gen Electric | Actuating mechanisms |
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