GB564531A - Improvements in and relating to switching mechanism particularly suitable for electric discharge lamps - Google Patents
Improvements in and relating to switching mechanism particularly suitable for electric discharge lampsInfo
- Publication number
- GB564531A GB564531A GB11775/43A GB1177543A GB564531A GB 564531 A GB564531 A GB 564531A GB 11775/43 A GB11775/43 A GB 11775/43A GB 1177543 A GB1177543 A GB 1177543A GB 564531 A GB564531 A GB 564531A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- disc
- chain
- plate
- held
- 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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/02—Details
- H05B41/04—Starting switches
Landscapes
- Mechanisms For Operating Contacts (AREA)
Abstract
564,531. Retractive switches. BRITISH THOMSON-HOUSTON CO., Ltd. July 20, 1943, No. 11775. Convention date, July 21, 1942. [Class 38 (v)] A switch has pairs of contacts closed by rotation of two elements, which may be moved together to close both circuits, one remaining " closed," while the other returns to " open " position on release of operating means. As shown, the rotatable elements 36, 55 are insulating discs mounted on a spindle 26, the ends of which are borne by plates 18, 19. Plate 18 bears pairs of contacts 27, 30, 40, 43, while plate 19 a pair 48, 49 spaced diametrically. Disc 36 bears oppositely situated shorting members 35 which coact with the contact pairs on plate 18. Disc 55 has secured to it a shorting member 56, the arms 57 of which coact with contacts 48, 49 on plate 19. Discs 36, 55 lie together in the assembly, with bearing rings 61, on each, touching, forming an annular channel around the periphery, in which runs a pull chain, the end of which is held by a member 63 having pins 65 protruding on each side. The pins lie in a slot 66 on disc 36 and in one of a series of ratchet steps 67 on disc 55, respectively. The member 63 is held by a tension spring 62, the other end of which is secured to a yoke 13 in which the discs and plates are assembled. On pulling and releasing the chain, the disc 36 moves to bridge the contacts 27, 30 and 40, 43, and breaks on the return, moving back and forth by reason of the pin 65 in the slot 66. The disc 55 is, however, rotated, on pulling, to close contacts 48, 49 and remains in that position on return of the chain, until a second pull. The switch is described as applied to starting discharge lamps, contacts 48, 49 controlling on and off while the contacts 27, 30 and 40, 43 place the filaments in series for as long as the chain is held pulled.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US564531XA | 1942-07-21 | 1942-07-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB564531A true GB564531A (en) | 1944-10-02 |
Family
ID=22004495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11775/43A Expired GB564531A (en) | 1942-07-21 | 1943-07-20 | Improvements in and relating to switching mechanism particularly suitable for electric discharge lamps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB564531A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2148599A (en) * | 1983-10-22 | 1985-05-30 | Crabtree Electrical Ind Ltd | Electric switches |
GB2182205A (en) * | 1983-10-22 | 1987-05-07 | Crabtree Electrical Ind Ltd | Electric switches |
GB2263816A (en) * | 1991-12-16 | 1993-08-04 | Alps Shoji K K | An electric switch |
GB2266187A (en) * | 1992-04-14 | 1993-10-20 | Bun Wong | Rotary stepping switch. |
-
1943
- 1943-07-20 GB GB11775/43A patent/GB564531A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2148599A (en) * | 1983-10-22 | 1985-05-30 | Crabtree Electrical Ind Ltd | Electric switches |
GB2182205A (en) * | 1983-10-22 | 1987-05-07 | Crabtree Electrical Ind Ltd | Electric switches |
GB2263816A (en) * | 1991-12-16 | 1993-08-04 | Alps Shoji K K | An electric switch |
GB2266187A (en) * | 1992-04-14 | 1993-10-20 | Bun Wong | Rotary stepping switch. |
GB2266185A (en) * | 1992-04-14 | 1993-10-20 | Bun Wong | Rotary stepping switch. |
GB2266185B (en) * | 1992-04-14 | 1996-06-05 | Bun Wong | Rotary stepping switch |
GB2266187B (en) * | 1992-04-14 | 1996-06-05 | Bun Wong | Rotary stepping switch |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1210102A (en) | Circuit interrupter | |
GB564531A (en) | Improvements in and relating to switching mechanism particularly suitable for electric discharge lamps | |
GB550797A (en) | Push-pull electric switch | |
GB649822A (en) | Improvements in push-pull electric selector switches | |
GB242664A (en) | Improvements in or relating to electro-magnetic cut-outs | |
GB563841A (en) | Improvements in and relating to electric switches suitable for electric discharge lamps | |
GB527142A (en) | Improvements in or relating to electric circuit interrupters having arc-extinguishing means | |
GB646476A (en) | Snap action electric switch | |
US2553478A (en) | Rotary electromagnetic transfer switch | |
US2773956A (en) | Front operated disconnect switch | |
US1328072A (en) | Eerdinand bechoee | |
GB534910A (en) | Improvements in, and connected with, electromagnetic switches | |
GB211158A (en) | ||
GB540529A (en) | Improvements in or relating to multiple pole switches | |
GB562938A (en) | Improvements in or relating to electric control switches | |
US1262895A (en) | Electromagnetic control-switch. | |
GB380624A (en) | A combined lamp and clock | |
GB486516A (en) | Improvements in or relating to switches for electric heating apparatus | |
US1328073A (en) | Indicator for controlling switches | |
USRE17649E (en) | wilms | |
GB262698A (en) | Improvements in electric switches | |
GB562909A (en) | Improvements in and relating to switching mechanism for electric discharge lamps | |
GB518269A (en) | Improvements in or relating to electric switches, particularly for battery lamps | |
GB486640A (en) | Improvements in three position electric switches | |
GB537315A (en) | Improvements in multi-position electric switches |