GB498122A - Improvements in and relating to alarm mechanism for electric clocks - Google Patents
Improvements in and relating to alarm mechanism for electric clocksInfo
- Publication number
- GB498122A GB498122A GB1753638A GB1753638A GB498122A GB 498122 A GB498122 A GB 498122A GB 1753638 A GB1753638 A GB 1753638A GB 1753638 A GB1753638 A GB 1753638A GB 498122 A GB498122 A GB 498122A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alarm
- relating
- alarm mechanism
- clocks
- electric
- 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
- G04C21/00—Producing acoustic time signals by electrical means
- G04C21/16—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Abstract
498,122. Electric alarm clocks. MOORE, H. E., and RICKETS, W. J. July 20, 1937, No. 17536/38. Divided out of 497,294. [Class 139] Alarm mechanism for electric synchronous motor clocks comprises a member 5 vibrated by the motor magnet or a mains excited electromagnet and released at a predetermined time by the clock-timing gear, the member 5, by means of a step-by-step mechanism 1, serving to rotate an alarm-operating shaft 8. One or more cams 9 may be mounted on the shaft and arranged to operate chiming hammers 10.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1753638A GB498122A (en) | 1937-07-20 | 1937-07-20 | Improvements in and relating to alarm mechanism for electric clocks |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1753638A GB498122A (en) | 1937-07-20 | 1937-07-20 | Improvements in and relating to alarm mechanism for electric clocks |
Publications (1)
Publication Number | Publication Date |
---|---|
GB498122A true GB498122A (en) | 1939-01-03 |
Family
ID=10096894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1753638A Expired GB498122A (en) | 1937-07-20 | 1937-07-20 | Improvements in and relating to alarm mechanism for electric clocks |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB498122A (en) |
-
1937
- 1937-07-20 GB GB1753638A patent/GB498122A/en not_active Expired
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