FR448196A - Telephony and telegraphy in the extraction cages - Google Patents
Telephony and telegraphy in the extraction cagesInfo
- Publication number
- FR448196A FR448196A FR448196DA FR448196A FR 448196 A FR448196 A FR 448196A FR 448196D A FR448196D A FR 448196DA FR 448196 A FR448196 A FR 448196A
- Authority
- FR
- France
- Prior art keywords
- telegraphy
- telephony
- cages
- extraction
- extraction cages
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/60—Systems for communication between relatively movable stations, e.g. for communication with lift
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Near-Field Transmission Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE271981T | 1911-08-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR448196A true FR448196A (en) | 1913-01-24 |
Family
ID=32522549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR448196D Expired FR448196A (en) | 1911-08-29 | 1912-08-20 | Telephony and telegraphy in the extraction cages |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE271981C (en) |
FR (1) | FR448196A (en) |
GB (2) | GB191219103A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1057303B (en) * | 1955-11-24 | 1959-05-14 | Standard Elek K Lorenz Ag | Circuit arrangement for signal transmission in shaft conveyor systems between a stationary and a signal transmitting / receiving device located on the conveyor basket |
DE2818004C2 (en) * | 1978-04-25 | 1979-10-31 | Funke + Huster Elektrizitaetsgesellschaft Mbh & Co Kg, 4300 Essen | Method for transmitting messages from above ground to a hoist cage and vice versa and arrangement for carrying out the method |
-
1911
- 1911-08-29 DE DE1911271981D patent/DE271981C/de not_active Expired - Lifetime
-
1912
- 1912-08-20 FR FR448196D patent/FR448196A/en not_active Expired
- 1912-08-20 GB GB191219103D patent/GB191219103A/en not_active Expired
- 1912-08-20 GB GB191219102D patent/GB191219102A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB191219102A (en) | 1912-10-31 |
DE271981C (en) | |
GB191219103A (en) | 1912-10-31 |
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