GB262971A - Improvements in alarm clocks - Google Patents
Improvements in alarm clocksInfo
- Publication number
- GB262971A GB262971A GB143326A GB143326A GB262971A GB 262971 A GB262971 A GB 262971A GB 143326 A GB143326 A GB 143326A GB 143326 A GB143326 A GB 143326A GB 262971 A GB262971 A GB 262971A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alarm
- arm
- bellcrank
- spring
- operated
- 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
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B23/00—Arrangements producing acoustic signals at preselected times
- G04B23/02—Alarm clocks
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Abstract
262,971. Benel, F. I. Jan. 18, 1926. Alarm mechanism; striking-mechanism.-In an alarm clock the cam disc which coacts with the alarm setting pin, instead of being acted upon by a special spring, is pressed upon by the alarm spring itself acting through suitable transmission mechanism. The alarm spring 1 acts through gearing 3 and scape wheel 2 upon an anchor 4 which, together with an arm 7 and hammer 6, is rigid with a shaft 5. Thus the alarm spring tends to press the arm 7 downwards, Fig. 8; the arm 7, however, rests upon a bellcrank 20<1>, 20, 20<2>. whereby the arm 20<2> presses outwards the axial cam 13 co-operating with the setting pin 16. When this pin registers with the notch in the cam the bellcrank is rocked and the arm 7 descends further so that the alarm may now be operated freely. In a modification, an alarm disabling device is provided in which a pawl, operated from a setting screw, locks in the teeth of the scape wheel. In a further modification, an additional arm on the bellcrank 20 is locked against movement by a hand-operated plunger. The known art is also illustrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB143326A GB262971A (en) | 1926-01-18 | 1926-01-18 | Improvements in alarm clocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB143326A GB262971A (en) | 1926-01-18 | 1926-01-18 | Improvements in alarm clocks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB262971A true GB262971A (en) | 1926-12-23 |
Family
ID=9721939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB143326A Expired GB262971A (en) | 1926-01-18 | 1926-01-18 | Improvements in alarm clocks |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB262971A (en) |
-
1926
- 1926-01-18 GB GB143326A patent/GB262971A/en not_active Expired
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