GB525106A - Improvements in or relating to thermally operated electric switches - Google Patents
Improvements in or relating to thermally operated electric switchesInfo
- Publication number
- GB525106A GB525106A GB5623/39A GB562339A GB525106A GB 525106 A GB525106 A GB 525106A GB 5623/39 A GB5623/39 A GB 5623/39A GB 562339 A GB562339 A GB 562339A GB 525106 A GB525106 A GB 525106A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- bellows
- spindle
- snap
- action
- 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
- H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
- H01H5/04—Energy stored by deformation of elastic members
- H01H5/045—Energy stored by deformation of elastic members making use of cooperating spring loaded wedging or camming parts between operating member and contact structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
- H01H35/2607—Means for adjustment of "ON" or "OFF" operating pressure
- H01H35/2614—Means for adjustment of "ON" or "OFF" operating pressure by varying the bias on the pressure sensitive element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/12—Means for adjustment of "on" or "off" operating temperature
- H01H37/26—Means for adjustment of "on" or "off" operating temperature by adjustment of abutment for "off" position of the movable contact
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/60—Means for producing snap action
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20576—Elements
- Y10T74/20636—Detents
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
525.106. Thermal switches; snap-action switches. SHERLCCK, J. E.. and BRITISH THERMOSTAT CO., Ltd. Feb. 20, 1939, No. 5623. [Class 38 (v)] In a snap-action thermal switch adapted to give increased pressure between the contacts up to the moment of breaking contact, the thermal element, which may be a' bellows c, acts on a spindle a having a double - ramp l engaged by a number of plungers k pressed inwards by a coil spring m which surrounds their outer ends and mounted in the movable contactmember j ; or alternatively the bellows may operate on the snap - action component and the spindle a operates the contacts. As shown the bellows c act against a spring e which can be adjusted by rotating a knob t. As the spindle a rises, the plungers k move outwards straining the spring m till the apex of the ramp is reached when the contact member j moves suddenly downwards bringing contacts n into engagement with fixed contacts o.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE463147D BE463147A (en) | 1939-02-20 | ||
GB5623/39A GB525106A (en) | 1939-02-20 | 1939-02-20 | Improvements in or relating to thermally operated electric switches |
US319520A US2276885A (en) | 1939-02-20 | 1940-02-17 | Thermally operated electric switch |
FR921979D FR921979A (en) | 1939-02-20 | 1946-02-11 | Improvements to electric switches actuated by thermal means |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5623/39A GB525106A (en) | 1939-02-20 | 1939-02-20 | Improvements in or relating to thermally operated electric switches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB525106A true GB525106A (en) | 1940-08-21 |
Family
ID=9799560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5623/39A Expired GB525106A (en) | 1939-02-20 | 1939-02-20 | Improvements in or relating to thermally operated electric switches |
Country Status (4)
Country | Link |
---|---|
US (1) | US2276885A (en) |
BE (1) | BE463147A (en) |
FR (1) | FR921979A (en) |
GB (1) | GB525106A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2446355A (en) * | 1944-07-20 | 1948-08-03 | Jeffrey Mfg Co | Detent mechanism for pressure regulators |
US2511640A (en) * | 1946-09-30 | 1950-06-13 | Cutler Hammer Inc | Circuit controlling device |
US2591993A (en) * | 1947-10-07 | 1952-04-08 | Peterson Co Carl G | Multipawl feed mechanism |
US2716902A (en) * | 1949-10-19 | 1955-09-06 | Bingham Herbrand Corp | Mechanism control |
US3062071A (en) * | 1959-12-29 | 1962-11-06 | Warren P Morrow | Actuator for triggering system |
DE1153439B (en) * | 1961-03-01 | 1963-08-29 | Busch Jaeger Duerener Metall | Temperature-dependent electrical switch with pot-shaped insulating material housing and pressurized can that can be used from outside |
US3295468A (en) * | 1962-10-16 | 1967-01-03 | Thomas E Belshaw | Dough forming machine |
-
0
- BE BE463147D patent/BE463147A/xx unknown
-
1939
- 1939-02-20 GB GB5623/39A patent/GB525106A/en not_active Expired
-
1940
- 1940-02-17 US US319520A patent/US2276885A/en not_active Expired - Lifetime
-
1946
- 1946-02-11 FR FR921979D patent/FR921979A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE463147A (en) | |
FR921979A (en) | 1947-05-23 |
US2276885A (en) | 1942-03-17 |
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