GB688267A - Improvements in or relating to electric switches having a dolly or like pivoted operating member - Google Patents
Improvements in or relating to electric switches having a dolly or like pivoted operating memberInfo
- Publication number
- GB688267A GB688267A GB58450A GB58450A GB688267A GB 688267 A GB688267 A GB 688267A GB 58450 A GB58450 A GB 58450A GB 58450 A GB58450 A GB 58450A GB 688267 A GB688267 A GB 688267A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dolly
- contact
- spring
- compressed
- contacts
- 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
- H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
- H01H23/02—Details
- H01H23/12—Movable parts; Contacts mounted thereon
- H01H23/16—Driving mechanisms
- H01H23/168—Driving mechanisms using cams
Landscapes
- Tumbler Switches (AREA)
Abstract
688,267. Tumbler switches. ASHLEY ACCESSORIES, Ltd., and EVERITT, L. H. R. Jan. 10, 1951 [Jan. 19, 1950], No. 584/50. Class 38 (v) In a switch having a dolly or like pivoted operating member, the closing force is applied to the movable contact through a permanently-compressed spring which is not further compressed until the contacts engage, whereby the contact pressure is increased. In Fig. 1, a movable bridging contact C is supported by springs D which normally hold the contacts open. The dolly E bears on the cross-piece of an inverted- U-member F, the lower ends of the arms of which are inturned under the contact C, with a spring G compressed between the cross-piece of the member F and the upper face of the contact, the spring G being stronger than springs D. Counterclockwise movement of the dolly causes the member F, spring G and contact C to move together initially until the latter engages the fixed contacts A, B, further movement of the dolly further compressing the spring G. In Fig. 5, the dolly 14 has a pin 29 engaging a slot 30 in a rocker arm 31, a spring 33 being compressed between the pin 29 and the head 32 of the arm, which bears in a depression 21a in the movable contact 21. Movement of the dolly, moves the rocker arm over dead-centre to open or close the contacts. In Fig. 6, the contact 21 has brackets 35 with slots 36 receiving a pin 37 carrying a roller 38 which co-operates with two recesses 41, 42 of different depth formed on either side of an intermediate nose on the dolly. The dolly is preferably pivoted to the switch cover (not shown), the remaining parts being mounted on the base. Specification 667,462 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB58450A GB688267A (en) | 1950-01-10 | 1950-01-10 | Improvements in or relating to electric switches having a dolly or like pivoted operating member |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB58450A GB688267A (en) | 1950-01-10 | 1950-01-10 | Improvements in or relating to electric switches having a dolly or like pivoted operating member |
Publications (1)
Publication Number | Publication Date |
---|---|
GB688267A true GB688267A (en) | 1953-03-04 |
Family
ID=9706949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB58450A Expired GB688267A (en) | 1950-01-10 | 1950-01-10 | Improvements in or relating to electric switches having a dolly or like pivoted operating member |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB688267A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE963970C (en) * | 1955-01-20 | 1957-05-16 | Busch Jaeger Duerener Metall | Waterproof toggle switch |
-
1950
- 1950-01-10 GB GB58450A patent/GB688267A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE963970C (en) * | 1955-01-20 | 1957-05-16 | Busch Jaeger Duerener Metall | Waterproof toggle switch |
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