GB903384A - Pull-operated electric mercury switch - Google Patents
Pull-operated electric mercury switchInfo
- Publication number
- GB903384A GB903384A GB372758A GB372758A GB903384A GB 903384 A GB903384 A GB 903384A GB 372758 A GB372758 A GB 372758A GB 372758 A GB372758 A GB 372758A GB 903384 A GB903384 A GB 903384A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rocker
- pull
- switch
- mercury switch
- feb
- 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
- H01H29/00—Switches having at least one liquid contact
- H01H29/20—Switches having at least one liquid contact operated by tilting contact-liquid container
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H17/00—Switches having flexible operating part adapted only for pulling, e.g. cord, chain
Landscapes
- Railway Tracks (AREA)
Abstract
903,384. Snap-action switches. PARSONS Ltd., C. H., and HANDLEY, G. B. Feb. 4, 1959 [Feb. 5, 1958], No. 3727/58. Class 38 (5). A switch operated on and off by successive pulls of a chain or cord 12 has two mercury containers 29 pivoted on pins 32 and connected to a rocker 23 by pins 33 thereon engaged in slots 34 in the carriers 31 for the containers 29. The rockers 23 are moved by the chain by a mechanism similar to that of Specification 692,127. Carriers 31 have two spaced slots 34 so that the angular arrangement of rocker and carrier may be adjusted to provide a two-pole switch or a two-way switch. The rocker is urged away from dead-centre to its extreme positions by a lever 45 acted upon by a spring 42 and engaging a roller 39 on the rocker. Specifications 733,226 and 738,088 also are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB372758A GB903384A (en) | 1958-02-05 | 1958-02-05 | Pull-operated electric mercury switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB372758A GB903384A (en) | 1958-02-05 | 1958-02-05 | Pull-operated electric mercury switch |
Publications (1)
Publication Number | Publication Date |
---|---|
GB903384A true GB903384A (en) | 1962-08-15 |
Family
ID=9763808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB372758A Expired GB903384A (en) | 1958-02-05 | 1958-02-05 | Pull-operated electric mercury switch |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB903384A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2176940A (en) * | 1985-05-07 | 1987-01-07 | Contactum Ltd | Electrical pull switches |
-
1958
- 1958-02-05 GB GB372758A patent/GB903384A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2176940A (en) * | 1985-05-07 | 1987-01-07 | Contactum Ltd | Electrical pull switches |
GB2176940B (en) * | 1985-05-07 | 1989-06-28 | Contactum Ltd | Improvements in and relating to electrical pull switches |
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