GB928437A - Improvements relating to speed-responsive electric switches - Google Patents
Improvements relating to speed-responsive electric switchesInfo
- Publication number
- GB928437A GB928437A GB4174/61A GB417461A GB928437A GB 928437 A GB928437 A GB 928437A GB 4174/61 A GB4174/61 A GB 4174/61A GB 417461 A GB417461 A GB 417461A GB 928437 A GB928437 A GB 928437A
- Authority
- GB
- United Kingdom
- Prior art keywords
- limb
- switch
- arm
- speed
- spring arm
- 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
- H01H35/00—Switches operated by change of a physical condition
- H01H35/06—Switches operated by change of speed
- H01H35/10—Centrifugal switches
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/23—Mechanically-actuated centrifugal switches
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
Abstract
928,437. Speed-responsive switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 26, 1962 [Feb. 3, 1961], No. 4174/61. Class 38 (5). A switch has a moving contact 10 carried by an L-shaped spring arm 4 pivoted at 16 to the insulating switch body 1 and carrying an insulating stud 14 on one limb 15, the stud 14 being engageable by an axially displaceable collar 21 of a centrifugal mechanism 18 (secured to the rotor shaft 19 of a motor 20) to deflect the contact-carrying limb 15 towards a fixed contact 11. The other limb 8 of arm 4 is twisted out of the general plane of the spring arm by anchoring it to a surface 9 of an abutment on the switch body 1 which surface is inclined relatively to the general plane of the arm when the latter is bearing against a backstop 5. Movement of the limb 15 to operate contacts 10, 11 increases the torsion in limb 8 by a determinable amount, so that the spring arm 4 can be pre-set during assembly of the switch to operate the switch at a precise motor speed. A hollow cylindrical extension 22 of the moulded switch body 1 shrouds the contacts 10, 11 and the centrifugal mechanism 18.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL274273D NL274273A (en) | 1961-02-03 | ||
GB4174/61A GB928437A (en) | 1961-02-03 | 1961-02-03 | Improvements relating to speed-responsive electric switches |
LU41192D LU41192A1 (en) | 1961-02-03 | 1962-02-02 | |
FR886854A FR1313570A (en) | 1961-02-03 | 1962-02-02 | Electric switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4174/61A GB928437A (en) | 1961-02-03 | 1961-02-03 | Improvements relating to speed-responsive electric switches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB928437A true GB928437A (en) | 1963-06-12 |
Family
ID=9772102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4174/61A Expired GB928437A (en) | 1961-02-03 | 1961-02-03 | Improvements relating to speed-responsive electric switches |
Country Status (3)
Country | Link |
---|---|
GB (1) | GB928437A (en) |
LU (1) | LU41192A1 (en) |
NL (1) | NL274273A (en) |
-
0
- NL NL274273D patent/NL274273A/xx unknown
-
1961
- 1961-02-03 GB GB4174/61A patent/GB928437A/en not_active Expired
-
1962
- 1962-02-02 LU LU41192D patent/LU41192A1/xx unknown
Also Published As
Publication number | Publication date |
---|---|
LU41192A1 (en) | 1962-04-02 |
NL274273A (en) | 1900-01-01 |
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