DE197637C - - Google Patents
Info
- Publication number
- DE197637C DE197637C DENDAT197637D DE197637DA DE197637C DE 197637 C DE197637 C DE 197637C DE NDAT197637 D DENDAT197637 D DE NDAT197637D DE 197637D A DE197637D A DE 197637DA DE 197637 C DE197637 C DE 197637C
- Authority
- DE
- Germany
- Prior art keywords
- contact
- lever
- spring
- alarm clock
- hour
- 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.)
- Active
Links
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000004579 marble Substances 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
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
- G04C21/32—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 giving indications at a number of places each at a different time, e.g. system of alarms in a hotel
- G04C21/323—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 giving indications at a number of places each at a different time, e.g. system of alarms in a hotel by the hand(s) or handlike members closing the contacts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE197637C true DE197637C (enrdf_load_stackoverflow) |
Family
ID=460507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT197637D Active DE197637C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE197637C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT197637D patent/DE197637C/de active Active
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