GB603535A - An improved snap-action electric switch for use in apparatus for temperature control - Google Patents
An improved snap-action electric switch for use in apparatus for temperature controlInfo
- Publication number
- GB603535A GB603535A GB27965/45A GB2796545A GB603535A GB 603535 A GB603535 A GB 603535A GB 27965/45 A GB27965/45 A GB 27965/45A GB 2796545 A GB2796545 A GB 2796545A GB 603535 A GB603535 A GB 603535A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rod
- snap
- action
- oct
- threads
- 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
- H01H5/18—Energy stored by deformation of elastic members by flexing of blade springs
-
- 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
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
603,535. Snap-action switches; thermal switches. LANDIS & GYR SOC. ANON. Oct. 23, 1945, No. 27965. Convention date, Oct. 24, 1944. [Class 38 (v)] A snap-action thermal switch has an operating cradle 5 with insulated push-rods 25, 27 engaging leaf-springs 21, 22 which transmit the operating force by means of bulges 23, 24 to the moving member 9, which may be a bowed blade spring such as that described in Specification 551,851 which snaps over to engage the fixed contact 13, or stop 14. The cradle is connected to the thermal element by a sleeve 4 and screwed rod 2 having threads 3, 20, which may be of different pitches, or righthand and left-hand to adjust the setting. A compression spring 18 eliminates the effect on the operation, of slackness in the threads, by keeping the rod 2 in tension, and provides the return force. The upper push-rod 27 is adjustable by a screw 26 to vary the overlap. One of the leaf-springs 21, 22 may be replaced by a bimetal strip to vary the setting with ambient temperature.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH603535X | 1944-10-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB603535A true GB603535A (en) | 1948-06-17 |
Family
ID=4522896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27965/45A Expired GB603535A (en) | 1944-10-24 | 1945-10-23 | An improved snap-action electric switch for use in apparatus for temperature control |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE460225A (en) |
CH (1) | CH242715A (en) |
DE (1) | DE849440C (en) |
FR (1) | FR913301A (en) |
GB (1) | GB603535A (en) |
NL (1) | NL66022C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2742543A (en) * | 1951-07-07 | 1956-04-17 | Clifford W Hurd | Electrical contacting device |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4400679A (en) * | 1981-09-21 | 1983-08-23 | Therm-O-Disc, Incorporated | Snap acting switch for thermostats |
DE3540414A1 (en) * | 1985-11-14 | 1987-05-21 | Ego Elektro Blanc & Fischer | TEMPERATURE LIMITERS |
DE3913288A1 (en) * | 1989-04-22 | 1990-10-25 | Ego Elektro Blanc & Fischer | Temp.-responsive switching unit - has contact switching elements operated by pin adjustable to set operating point |
DE102006039131A1 (en) * | 2006-08-21 | 2008-02-28 | BSH Bosch und Siemens Hausgeräte GmbH | Protector device for cooking point, has radiant heating element and expansion element is arranged in area of radiant heating element and switching mechanism consists of temperature-sensitive element |
-
0
- NL NL66022D patent/NL66022C/xx active
- BE BE460225D patent/BE460225A/xx unknown
-
1944
- 1944-10-24 CH CH242715D patent/CH242715A/en unknown
- 1944-11-19 DE DEL3567D patent/DE849440C/en not_active Expired
-
1945
- 1945-08-10 FR FR913301D patent/FR913301A/en not_active Expired
- 1945-10-23 GB GB27965/45A patent/GB603535A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2742543A (en) * | 1951-07-07 | 1956-04-17 | Clifford W Hurd | Electrical contacting device |
Also Published As
Publication number | Publication date |
---|---|
FR913301A (en) | 1946-09-04 |
DE849440C (en) | 1952-09-15 |
CH242715A (en) | 1946-05-31 |
NL66022C (en) | |
BE460225A (en) |
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