GB440346A - Improvements in automatic switches for use in telephone or like systems - Google Patents
Improvements in automatic switches for use in telephone or like systemsInfo
- Publication number
- GB440346A GB440346A GB1873334A GB1873334A GB440346A GB 440346 A GB440346 A GB 440346A GB 1873334 A GB1873334 A GB 1873334A GB 1873334 A GB1873334 A GB 1873334A GB 440346 A GB440346 A GB 440346A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotary
- magnet
- spring
- open
- armature
- 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
- H01H63/00—Details of electrically-operated selector switches
- H01H63/16—Driving arrangements for multi-position wipers
- H01H63/18—Driving arrangements for multi-position wipers with step-by-step motion of wiper to a selector position
- H01H63/20—Driving arrangements for multi-position wipers with step-by-step motion of wiper to a selector position using stepping magnet and ratchet
Landscapes
- Telephone Set Structure (AREA)
- Structure Of Telephone Exchanges (AREA)
Abstract
440,346. Automatic exchange switches. AUTOMATIC ELECTRIC CO., Ltd., Strowger Works, and SAXBY, R. N., 36, Millersdale Road, Mossley Hill, both in Liverpool. June 25, 1934, No. 18733. [Class 40 (iv)] In a two-motion switch of the kind that, on release, continues its rotary motion to an extreme position and then drops down, e.g. as described in Specification 391,123, the rotary stepping pawl 10, which is pivoted at 9 to the magnet armature and urged clockwise by a spring, in the extreme position engages a deep slot in the rotary ratchet so that a projection 13 on the pawl comes against a stop 14 on the subsequent energization of the magnet and the armature is then usable to open the interrupter springs. On reaching the lowest position the switch is restored rotarily by a spring and off-normal springs then open the rotary magnet circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1873334A GB440346A (en) | 1934-06-25 | 1934-06-25 | Improvements in automatic switches for use in telephone or like systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1873334A GB440346A (en) | 1934-06-25 | 1934-06-25 | Improvements in automatic switches for use in telephone or like systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB440346A true GB440346A (en) | 1935-12-27 |
Family
ID=10117464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1873334A Expired GB440346A (en) | 1934-06-25 | 1934-06-25 | Improvements in automatic switches for use in telephone or like systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB440346A (en) |
-
1934
- 1934-06-25 GB GB1873334A patent/GB440346A/en not_active Expired
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