GB229392A - Improvements in or relating to electric switches for electromagnetic sound-producinghorns - Google Patents
Improvements in or relating to electric switches for electromagnetic sound-producinghornsInfo
- Publication number
- GB229392A GB229392A GB2937423A GB2937423A GB229392A GB 229392 A GB229392 A GB 229392A GB 2937423 A GB2937423 A GB 2937423A GB 2937423 A GB2937423 A GB 2937423A GB 229392 A GB229392 A GB 229392A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- button
- piston
- press
- plunger
- 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
- H01H7/00—Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts
- H01H7/02—Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts with fluid timing means
- H01H7/03—Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts with fluid timing means with dash-pots
Landscapes
- Tumbler Switches (AREA)
- Slide Switches (AREA)
Abstract
229,392. Spicer, W. J. Nov. 21, 1923. Press-button switches; momentary - contact switches.- A switch for closing the actuating circuit of an electromagnetically-operated soundproducing horn for use on motor vehicles comprises a contact-member moved by pneumatic means resulting from the operation manually as by a press-button of a piston or plunger the loose fit of which causes the air pressure to fall off after a short interval so that the contact-member again assumes the off position independently of the operating member. As shown applied to a pressbutton switch, the telescopic press-button carries a plunger k with a piston l working in the casing i. The movable contact-member in the form of a bent spring with a contact c rests in engagement with a leather diaphragm f. When the button is depressed, against the action of the spring n, the air pressure produced, acting through the diaphragm forces the contacts together, and, even if the button is held depressed, the contact-member resumes the off position after a short interval owing to the escape of air round the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2937423A GB229392A (en) | 1923-11-21 | 1923-11-21 | Improvements in or relating to electric switches for electromagnetic sound-producinghorns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2937423A GB229392A (en) | 1923-11-21 | 1923-11-21 | Improvements in or relating to electric switches for electromagnetic sound-producinghorns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB229392A true GB229392A (en) | 1925-02-23 |
Family
ID=10290522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2937423A Expired GB229392A (en) | 1923-11-21 | 1923-11-21 | Improvements in or relating to electric switches for electromagnetic sound-producinghorns |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB229392A (en) |
-
1923
- 1923-11-21 GB GB2937423A patent/GB229392A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB652639A (en) | Improvements in or relating to snap action electric switches | |
| GB616731A (en) | Improvements in and relating to snap action electric switches | |
| GB229392A (en) | Improvements in or relating to electric switches for electromagnetic sound-producinghorns | |
| GB1421591A (en) | Electric switch | |
| GB655549A (en) | Improvements in and relating to snap-action electric switches | |
| GB629949A (en) | Improvements in or relating to snap-action electric switches | |
| GB557725A (en) | Improvements in and relating to contact mountings, more particularly for centrifugally operated electric switches | |
| GB163291A (en) | Electric switch | |
| GB585972A (en) | Improvements in snap-action electric switches | |
| GB653482A (en) | Improvements in or relating to snap-action electric switches | |
| GB280294A (en) | Improvements in and relating to electric switches | |
| GB601361A (en) | Improvements in or relating to snap action mechanisms for electric switches, switchgear and the like | |
| GB206944A (en) | Improvements in electric switches | |
| GB558280A (en) | Mechanisms for operating electric switches | |
| GB652792A (en) | Improvements in and relating to electric switches, particularly electromagnetically operated switches | |
| GB221816A (en) | Improvements relating to electric switches | |
| GB875203A (en) | Push button electric switch | |
| GB798638A (en) | Improvements relating to snap-action electric switches | |
| GB607501A (en) | Improvements in or relating to electric snap action switches | |
| GB636023A (en) | Snap-action electrical switches | |
| GB451431A (en) | Improvements in and relating to gas-blast electric switches | |
| GB607619A (en) | Improvements relating to electric push button switches | |
| GB468645A (en) | Improvements in switches for portable electric power tools | |
| GB250891A (en) | Improvements in circuit-breakers | |
| GB596456A (en) | Improvements relating to snap-action operating mechanism suitable for the actuation of electric switches |