DE242413C - - Google Patents
Info
- Publication number
- DE242413C DE242413C DENDAT242413D DE242413DA DE242413C DE 242413 C DE242413 C DE 242413C DE NDAT242413 D DENDAT242413 D DE NDAT242413D DE 242413D A DE242413D A DE 242413DA DE 242413 C DE242413 C DE 242413C
- Authority
- DE
- Germany
- Prior art keywords
- clock
- contacts
- weight
- switchboard
- alarm
- 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
- 238000009413 insulation Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000002955 isolation Methods 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE242413C true DE242413C (enrdf_load_stackoverflow) |
Family
ID=501618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT242413D Active DE242413C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE242413C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT242413D patent/DE242413C/de active Active
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