GB894059A - An improved apparatus for deriving electrical signals representative of physical pressure - Google Patents

An improved apparatus for deriving electrical signals representative of physical pressure

Info

Publication number
GB894059A
GB894059A GB3570359A GB3570359A GB894059A GB 894059 A GB894059 A GB 894059A GB 3570359 A GB3570359 A GB 3570359A GB 3570359 A GB3570359 A GB 3570359A GB 894059 A GB894059 A GB 894059A
Authority
GB
United Kingdom
Prior art keywords
contacts
relay
contact
positive potential
terminal
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
Application number
GB3570359A
Inventor
Charles Richard Paul Stonor
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SOUND DIFFUSION SALES Ltd
Original Assignee
SOUND DIFFUSION SALES Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SOUND DIFFUSION SALES Ltd filed Critical SOUND DIFFUSION SALES Ltd
Priority to GB3570359A priority Critical patent/GB894059A/en
Publication of GB894059A publication Critical patent/GB894059A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/002—Telephonic communication systems specially adapted for combination with other electrical systems with telemetering systems
    • H04M11/005—Telephonic communication systems specially adapted for combination with other electrical systems with telemetering systems using recorded signals, e.g. speech
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0091—Transmitting or indicating the displacement of liquid mediums by electrical, electromechanical, magnetic or electromagnetic means
    • G01L9/0092—Transmitting or indicating the displacement of liquid mediums by electrical, electromechanical, magnetic or electromagnetic means using variations in ohmic resistance

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

894,059. Electric selective signalling systems. SOUND DIFFUSION (SALES) Ltd. Jan. 23, 1961 [Oct. 21, 1959], No. 35703/59. Class 40 (1). A system for transmitting the value of a pressure to a remote station includes a mercury manometer B and spaced contacts E1-E6 corresponding respectively to pressures of 6-1 p.s.i., contacts E2, E4, E6 being connected through a resistor RX, RY, RZ to the same terminals of a uniselector CS1 as contacts E1, E3, E5. The wiper of CS1 scans the contacts in the direction shown by the arrow and relay M operates when the first terminal which is marked with a positive potential is reached. If this terminal carries the full positive potential relay SA operates when contact P1 is subsequently closed and contacts SA1 open to prevent relay M from operating again. If the first marked terminal carries a low positive potentialdenoting that the highest immersed contact is E2, E4 or E6-relay SA does not operate when contacts P1 close, so that relay M is again operated when CS1 steps to the next terminal, this being at the full positive potential so that further operation of M is then prevented. Contact M1 controls a verbal announcement unit which is arranged to transmit a verbal message over lines PL to indicate the pressure. When M1 is operated twice, two successive messages are transmitted, e.g. " 6 p.s.i." followed by " 4 p.s.i.", this being interpreted as " 5 p.s.i." Specification 868,768 is referred to.
GB3570359A 1959-10-21 1959-10-21 An improved apparatus for deriving electrical signals representative of physical pressure Expired GB894059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3570359A GB894059A (en) 1959-10-21 1959-10-21 An improved apparatus for deriving electrical signals representative of physical pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3570359A GB894059A (en) 1959-10-21 1959-10-21 An improved apparatus for deriving electrical signals representative of physical pressure

Publications (1)

Publication Number Publication Date
GB894059A true GB894059A (en) 1962-04-18

Family

ID=10380638

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3570359A Expired GB894059A (en) 1959-10-21 1959-10-21 An improved apparatus for deriving electrical signals representative of physical pressure

Country Status (1)

Country Link
GB (1) GB894059A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1541984A2 (en) * 1998-12-17 2005-06-15 Chevron USA, Inc. Apparatus for communicating and measuring pressure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1541984A2 (en) * 1998-12-17 2005-06-15 Chevron USA, Inc. Apparatus for communicating and measuring pressure
EP1541984A3 (en) * 1998-12-17 2006-06-07 Chevron USA, Inc. Apparatus for communicating and measuring pressure

Similar Documents

Publication Publication Date Title
GB977302A (en) Improvements in data collection systems
JPS5530207A (en) Main station connection system of key telephone system
GB894059A (en) An improved apparatus for deriving electrical signals representative of physical pressure
JPS5283101A (en) Intercept system for incapable communication
JPS57152266A (en) Fault information system
GB1153671A (en) Conference Circuits
US2057898A (en) Telephone signaling system
GB641345A (en) Improvements in or relating to teleprinter exchange systems
GB987291A (en) Electrical communication apparatus
JPS5560350A (en) Party-subscriber discrimination system of remote communication unit
GB1449654A (en) Communication systems
JPS54137905A (en) Non-storage multiple-address facsimile system
GB852193A (en) Improvements in or relating to burglar alarm systems
JPS5780847A (en) Loop data transmission system
GB1254939A (en) Bridging units for terminating leased lines in telephone line circuits
JPS5276805A (en) Telephone service system
JPS55138958A (en) Originating line terminal confirmation system in terminating line terminal
GB967303A (en) Improvements in or relating to display arrangements
JPS5516537A (en) Caretaking service communication system
GB1350111A (en) Telecommunications exchange systems
JPS53127203A (en) Exchanging system for circuit
JPS5495109A (en) Pb receiver connection system
JPS56123140A (en) Cordless telephone set
GB749061A (en) Improvements in or relating to electrical order telegraph installations
GB1016788A (en) Telephone transmitted alarm unit