GB739376A - Improvements in or relating to electric switching and selecting devices - Google Patents
Improvements in or relating to electric switching and selecting devicesInfo
- Publication number
- GB739376A GB739376A GB558152A GB558152A GB739376A GB 739376 A GB739376 A GB 739376A GB 558152 A GB558152 A GB 558152A GB 558152 A GB558152 A GB 558152A GB 739376 A GB739376 A GB 739376A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- contacts
- electric switching
- arm
- selecting devices
- 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
- H01H67/00—Electrically-operated selector switches
- H01H67/02—Multi-position wiper switches
- H01H67/04—Multi-position wiper switches having wipers movable only in one direction for purpose of selection
- H01H67/06—Rotary switches, i.e. having angularly movable wipers
Landscapes
- Manufacture Of Switches (AREA)
Abstract
739,376. Automatic exchange switches. ERICSSON TELEPHONES Ltd., and MELTON, H. J. March 4, 1953 [March 4, 1952], No. 5581/52. Class 40 (4). Pairs of contacts 6, 8, which may be set in a contact bank of the type described in Specification 685,223, are actuated in turn by an insulated bead or roller 10 carried by a rotating arm 11. The contacts may be of the make, break, or change-over type, and the movable contacts 8 may be multipled, consisting of projections from a ring 7. The arm 11 is resilient and normally rests against a rigid arm 12.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB558152A GB739376A (en) | 1952-03-04 | 1952-03-04 | Improvements in or relating to electric switching and selecting devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB558152A GB739376A (en) | 1952-03-04 | 1952-03-04 | Improvements in or relating to electric switching and selecting devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB739376A true GB739376A (en) | 1955-10-26 |
Family
ID=9798799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB558152A Expired GB739376A (en) | 1952-03-04 | 1952-03-04 | Improvements in or relating to electric switching and selecting devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB739376A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1154549B (en) * | 1960-05-04 | 1963-09-19 | Thomson Houston Comp Francaise | Small electrical rotary switch |
US3831125A (en) * | 1973-06-06 | 1974-08-20 | Emerson Electric Co | Welding unit with improved transformer tap and switch construction |
-
1952
- 1952-03-04 GB GB558152A patent/GB739376A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1154549B (en) * | 1960-05-04 | 1963-09-19 | Thomson Houston Comp Francaise | Small electrical rotary switch |
US3831125A (en) * | 1973-06-06 | 1974-08-20 | Emerson Electric Co | Welding unit with improved transformer tap and switch construction |
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