GB604886A - Improvements in or relating to thermal cut-outs for performing electric switching operations - Google Patents
Improvements in or relating to thermal cut-outs for performing electric switching operationsInfo
- Publication number
- GB604886A GB604886A GB3319645A GB3319645A GB604886A GB 604886 A GB604886 A GB 604886A GB 3319645 A GB3319645 A GB 3319645A GB 3319645 A GB3319645 A GB 3319645A GB 604886 A GB604886 A GB 604886A
- Authority
- GB
- United Kingdom
- Prior art keywords
- thermal cut
- outs
- relating
- switching operations
- electric switching
- 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
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
- H01H71/20—Electrothermal mechanisms with fusible mass
- H01H71/205—Electrothermal mechanisms with fusible mass using a ratchet wheel kept against rotation by solder
Landscapes
- Mechanisms For Operating Contacts (AREA)
Abstract
604,886. Thermal switches. SOUTH WALES SWITCHGEAR, Ltd., and DAVIES, P. R. Dec. 7, 1945, No. 33196. [Class 38 (v)] In a thermal cut-out for electric boilers, and of the type wherein a spring-urged rod 6 is held by a pawl 14 engaging a ratchet-wheel 15 normally prevented from rotating by fusible material, the rod has a slot 12 engaging the operating lever 11 of a snap-action switch 9, which forms a complete unit secured to the frame by screws 8 and removable without disturbing the remainder of the parts.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3319645A GB604886A (en) | 1945-12-07 | 1945-12-07 | Improvements in or relating to thermal cut-outs for performing electric switching operations |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3319645A GB604886A (en) | 1945-12-07 | 1945-12-07 | Improvements in or relating to thermal cut-outs for performing electric switching operations |
Publications (1)
Publication Number | Publication Date |
---|---|
GB604886A true GB604886A (en) | 1948-07-12 |
Family
ID=10349818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3319645A Expired GB604886A (en) | 1945-12-07 | 1945-12-07 | Improvements in or relating to thermal cut-outs for performing electric switching operations |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB604886A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2294624B (en) * | 1993-06-25 | 1997-06-11 | Kenneth Gordon Matthews | Improved ploughing apparatus |
-
1945
- 1945-12-07 GB GB3319645A patent/GB604886A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2294624B (en) * | 1993-06-25 | 1997-06-11 | Kenneth Gordon Matthews | Improved ploughing apparatus |
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