GB663417A - Control of electric motors - Google Patents
Control of electric motorsInfo
- Publication number
- GB663417A GB663417A GB11584/49A GB1158449A GB663417A GB 663417 A GB663417 A GB 663417A GB 11584/49 A GB11584/49 A GB 11584/49A GB 1158449 A GB1158449 A GB 1158449A GB 663417 A GB663417 A GB 663417A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spring
- governor
- speed
- contacts
- setting
- 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
- 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)
- Dc Machiner (AREA)
Abstract
663,417. Centrifugal switches. MIDLAND REPETITION & AUTO MANUFACTURING CO., Ltd., HOLMES, G. C., SIMMONS, W. N., and TAYLOR, H.C. Dec. 31, 1949. (April 30, 1949] No. 11584/49. Class 38 (v). [Also in Group XXXV] The speed of a small electric motor is maintained constant at a predetermined speed by a device comprising a non- rotatable make- and-break switch having a pair of contacts 24 one of which is pivotally mounted on an insulating member 31 and is pressed towards the other contact and towards the end of an axially-movable element 30 of the governor by means of a spring 32 the loading of which is adjustable to set the governor for different speeds. The pressure of the spring 32 is predetermined by setting the position of a member 37 acting on this spring through a block 40. At selector speed, the element 30 of the governor forces the member 31 to open the contacts 24 against the spring 32. An actuating knob 38 secured to one end of the member 37 is arranged to turn the latter and to cause it to move axially through the engagement of a pin 41 carried by the block 40 with a helical groove 42 in the wall of the member 37. Thus the pre-setting of the knob 38 alters the spring compression and consequently alters the speed at which the contacts 24 should open by the governor force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB11584/49A GB663417A (en) | 1949-04-30 | 1949-04-30 | Control of electric motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB11584/49A GB663417A (en) | 1949-04-30 | 1949-04-30 | Control of electric motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB663417A true GB663417A (en) | 1951-12-19 |
Family
ID=9988916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11584/49A Expired GB663417A (en) | 1949-04-30 | 1949-04-30 | Control of electric motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB663417A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2826799A1 (en) * | 2001-05-07 | 2003-01-03 | Smith Corp A O | ELECTRIC MOTOR HAVING A DRUM STARTER WITHOUT ADJUSTMENT |
-
1949
- 1949-04-30 GB GB11584/49A patent/GB663417A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2826799A1 (en) * | 2001-05-07 | 2003-01-03 | Smith Corp A O | ELECTRIC MOTOR HAVING A DRUM STARTER WITHOUT ADJUSTMENT |
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