FR518203A - Perfectionnements apportés aux systèmes de signalisation - Google Patents
Perfectionnements apportés aux systèmes de signalisationInfo
- Publication number
- FR518203A FR518203A FR518203A FR518203DA FR518203A FR 518203 A FR518203 A FR 518203A FR 518203 A FR518203 A FR 518203A FR 518203D A FR518203D A FR 518203DA FR 518203 A FR518203 A FR 518203A
- Authority
- FR
- France
- Prior art keywords
- signaling systems
- signaling
- systems
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/12—Details not specific to one of the before-mentioned types
- F16D25/14—Fluid pressure control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/40—Applications of speech amplifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M5/00—Manual exchanges
- H04M5/08—Manual exchanges using connecting means other than cords
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/08—Arrangements for interconnection between switching centres for phantom working
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0212—Details of pistons for master or slave cylinders especially adapted for fluid control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0221—Valves for clutch control systems; Details thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Interface Circuits In Exchanges (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US344048XA | 1915-08-31 | 1915-08-31 | |
US868676A US1528998A (en) | 1915-08-31 | 1923-10-15 | Automatic machine-control means |
Publications (1)
Publication Number | Publication Date |
---|---|
FR518203A true FR518203A (fr) | 1921-05-21 |
Family
ID=33479107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR518203A Expired FR518203A (fr) | 1915-08-31 | 1920-06-28 | Perfectionnements apportés aux systèmes de signalisation |
Country Status (3)
Country | Link |
---|---|
US (1) | US1528998A (fr) |
DE (1) | DE344048C (fr) |
FR (1) | FR518203A (fr) |
-
1920
- 1920-06-13 DE DE1920344048D patent/DE344048C/de not_active Expired
- 1920-06-28 FR FR518203A patent/FR518203A/fr not_active Expired
-
1923
- 1923-10-15 US US868676A patent/US1528998A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE344048C (de) | 1921-11-12 |
US1528998A (en) | 1925-03-10 |
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