GB876969A - Improvements in cord or chain operated electric pull switches - Google Patents
Improvements in cord or chain operated electric pull switchesInfo
- Publication number
- GB876969A GB876969A GB3816558A GB3816558A GB876969A GB 876969 A GB876969 A GB 876969A GB 3816558 A GB3816558 A GB 3816558A GB 3816558 A GB3816558 A GB 3816558A GB 876969 A GB876969 A GB 876969A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cord
- switches
- arms
- contacts
- nov
- 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
- H01H17/00—Switches having flexible operating part adapted only for pulling, e.g. cord, chain
- H01H17/16—Switches having flexible operating part adapted only for pulling, e.g. cord, chain having a single flexible operating part adapted for pulling at one end only
- H01H17/165—Switches having flexible operating part adapted only for pulling, e.g. cord, chain having a single flexible operating part adapted for pulling at one end only secured to a part of the switch mechanism that has only rectilinear movement
Landscapes
- Push-Button Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
876,969. Snap-action switches; retractive switches. SCHNEIDER, H. W. Nov. 12, 1959 [Nov. 26, 1958], No. 38165/58. Class 38 (5). A switch operated by a pull on a cord 6 comprises a base 1 carrying fixed contacts 2 in ratchet-like recesses and a cover 3 with tubular extension 11 housing a contact operating member 8 which has recesses to engage pawls 26 on a moving contact member 9. Spring arms 22 on member 9 alternately bridge and isolate contacts 2 as the member 9 is rotated in 90 degree steps by successive pulls on cord 6. The member 8 is rotatable on a ledge 18 in extension 11 and has slots 19 to accommodate arms 13 of a cord sleeve 7. Arms 13 are urged into engagement with helical faces 12 by a pre-stressed torsion spring 5 such that a pull on cord 6 causes the sleeve 7 to follow a helical path, thereby rotating member 8 and thus contact member 9. Multi-pole switches may be provided (Fig. 5, not shown) by adding bases 1 with associated contacts and coupled members 8. A retractive switch may be provided by bending the ends of fixed contacts 2 at right-angles and replacing moving contact member 9 by a simple metal bridge attached to member 8. Specification 644,265 is referred to.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3816558A GB876969A (en) | 1958-11-26 | 1958-11-26 | Improvements in cord or chain operated electric pull switches |
DE1959SC026193 DE1848968U (en) | 1958-11-26 | 1959-11-18 | ELECTRIC PULL SWITCH. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3816558A GB876969A (en) | 1958-11-26 | 1958-11-26 | Improvements in cord or chain operated electric pull switches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB876969A true GB876969A (en) | 1961-09-06 |
Family
ID=10401671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3816558A Expired GB876969A (en) | 1958-11-26 | 1958-11-26 | Improvements in cord or chain operated electric pull switches |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1848968U (en) |
GB (1) | GB876969A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITVI20080307A1 (en) * | 2008-12-23 | 2010-06-24 | Pizzato Elettrica Srl | BISTABLE SWITCHING DEVICE WITH ROPE |
-
1958
- 1958-11-26 GB GB3816558A patent/GB876969A/en not_active Expired
-
1959
- 1959-11-18 DE DE1959SC026193 patent/DE1848968U/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITVI20080307A1 (en) * | 2008-12-23 | 2010-06-24 | Pizzato Elettrica Srl | BISTABLE SWITCHING DEVICE WITH ROPE |
EP2202770A1 (en) | 2008-12-23 | 2010-06-30 | Pizzato Elettrica S.r.l. | Rope bistable commutation device |
Also Published As
Publication number | Publication date |
---|---|
DE1848968U (en) | 1962-03-29 |
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