GB225537A - Improvements in time alarm signal devices - Google Patents
Improvements in time alarm signal devicesInfo
- Publication number
- GB225537A GB225537A GB27546/24A GB2754624A GB225537A GB 225537 A GB225537 A GB 225537A GB 27546/24 A GB27546/24 A GB 27546/24A GB 2754624 A GB2754624 A GB 2754624A GB 225537 A GB225537 A GB 225537A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bell
- indicator
- alarm signal
- time alarm
- signal devices
- 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
- G04C21/30—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times with provision for a number of operations at different times, e.g. ringing the bells in a school
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Abstract
225,537. Mamet et Cie. Nov. 29, 1923, [Convention date]. Falling flap and other release indicators or annunciators.-In a time-alarm device a visual indicator 31, pivoted at 29, may, on the ringing of the bell 35, be lifted by a spring to the operative. position shown in Fig. 1. The pressing in of a tapered push member in the hole 27 depresses the indicator 31 to the inoperative position by acting cam-wise on the toe 32. Thereupon a catch, rigid with the indicator, is callght by the armature of the bell and thereafter held until the bell rings again.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR225537X | 1923-11-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB225537A true GB225537A (en) | 1925-09-03 |
Family
ID=8881930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27546/24A Expired GB225537A (en) | 1923-11-29 | 1924-11-18 | Improvements in time alarm signal devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB225537A (en) |
-
1924
- 1924-11-18 GB GB27546/24A patent/GB225537A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB225537A (en) | Improvements in time alarm signal devices | |
GB800121A (en) | Improvements in and relating to identifying devices | |
GB177240A (en) | Improvements in calling devices adapted to be operated by wireless signals | |
GB558198A (en) | Improvements in or relating to alarum devices | |
GB234942A (en) | Improvements in or relating to indicators for electric signalling systems and the like | |
GB520122A (en) | Improvements relating to means for securing and liberating lifebuoys | |
GB229675A (en) | ||
GB390132A (en) | An improved automatic electro-mechanical alarm system | |
GB477661A (en) | Improvements in or relating to flushing devices | |
SU23182A1 (en) | Fire Alarm Device | |
GB203952A (en) | Improvements in or relating to electrically operated burglar alarms | |
GB451817A (en) | Improvements in methods of measuring the magnitude of the force of gravity | |
GB182155A (en) | Improvements in wireless telegraph calling or alarm devices | |
GB183607A (en) | An improved indicating device, particularly suitable for use with bell pushes | |
GB179289A (en) | Improvements in or relating to burglar alarms | |
GB180393A (en) | Improvements in or relating to indicators or annunciators | |
GB364392A (en) | Improvements in or relating to automatic burglar alarms | |
GB271716A (en) | Improvements in or relating to fire-alarms | |
GB776456A (en) | Automatic fire alarm | |
GB741531A (en) | Fishing device | |
GB304119A (en) | Improvements in or relating to coin freed alarms | |
GB211751A (en) | Alarm clock | |
GB304982A (en) | Electrical distant observation system with automatic control means | |
GB369796A (en) | Improvements in or relating to printing, stamping or recording devices | |
GB269795A (en) | Improvements in marking and checking devices for laundry and the like |