GB363136A - Improvements in starting mechanism for synchronous motor clocks - Google Patents
Improvements in starting mechanism for synchronous motor clocksInfo
- Publication number
- GB363136A GB363136A GB38318/30A GB3831830A GB363136A GB 363136 A GB363136 A GB 363136A GB 38318/30 A GB38318/30 A GB 38318/30A GB 3831830 A GB3831830 A GB 3831830A GB 363136 A GB363136 A GB 363136A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- arm
- gear
- sector
- rotor
- 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
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C15/00—Clocks driven by synchronous motors
- G04C15/0009—Clocks driven by synchronous motors without power-reserve
- G04C15/0018—Clocks driven by synchronous motors without power-reserve provided with hand-actuated starting device
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
363,136. Motor driving-arrangements. SANGAMO ELECTRIC CO., Springfield, Illinois. U.S.A. Dec. 19, 1930, No. 38318. Convention date, Aug. 18. [Class 35.] Rotary machines.- A synchronous clock motor is started by a member manually set which when released moves to its normal position under spring tension and starts the motor, and a governor is provided which functions only during the starting operation, being disengaged from the motor during normal running. The motor is preferably of the type described in Specification 366,946, the stator of which comprises a cup and a plate with imbricated teeth enclosing the stator coil, and the rotor, a permanent magnet 14. In the form shown, the rotor poles are bifurcated, the width of each part being substantially equal to that of a stator tooth and equal to or slightly greater than the distance between adjacent teeth. In addition to the driving pinion for the gear train, the rotor shaft 13 has a gear wheel 20 with which a gear sector 23 can engage. Attached to the arm 22 carrying the sector 23 is an arm 28 carrying a gear sector 29 in mesh with a pinion 30 on the shaft of a vane governor 32, and an arm 33 having a portion 34 projecting through a slot 35 in the clock casing. A spring 25 maintains the parts in the position shown and stops 24, 38 limit the extent of the movement. Starting is effected by moving the lever 33 in the counterclockwise direction and then releasing it.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US363136XA | 1930-08-18 | 1930-08-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB363136A true GB363136A (en) | 1931-12-17 |
Family
ID=21887886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB38318/30A Expired GB363136A (en) | 1930-08-18 | 1930-12-19 | Improvements in starting mechanism for synchronous motor clocks |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB363136A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2717821A (en) * | 1948-06-21 | 1955-09-13 | Texas Instruments Inc | Seismograph timing devices |
-
1930
- 1930-12-19 GB GB38318/30A patent/GB363136A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2717821A (en) * | 1948-06-21 | 1955-09-13 | Texas Instruments Inc | Seismograph timing devices |
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