GB539810A - Improvements in or relating to apparatus for reading records and in communication systems - Google Patents

Improvements in or relating to apparatus for reading records and in communication systems

Info

Publication number
GB539810A
GB539810A GB5378/40A GB537840A GB539810A GB 539810 A GB539810 A GB 539810A GB 5378/40 A GB5378/40 A GB 5378/40A GB 537840 A GB537840 A GB 537840A GB 539810 A GB539810 A GB 539810A
Authority
GB
United Kingdom
Prior art keywords
cathode
scanning
ray
record
signals
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
GB5378/40A
Other languages
English (en)
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.)
British Tabulating Machine Co Ltd
Original Assignee
British Tabulating Machine Co 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 British Tabulating Machine Co Ltd filed Critical British Tabulating Machine Co Ltd
Publication of GB539810A publication Critical patent/GB539810A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3218—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators for flexible or elastic containers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printing Methods (AREA)
  • Recording Measured Values (AREA)
GB5378/40A 1939-03-25 1940-03-23 Improvements in or relating to apparatus for reading records and in communication systems Expired GB539810A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US539810XA 1939-03-25 1939-03-25

Publications (1)

Publication Number Publication Date
GB539810A true GB539810A (en) 1941-09-24

Family

ID=21987892

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5378/40A Expired GB539810A (en) 1939-03-25 1940-03-23 Improvements in or relating to apparatus for reading records and in communication systems

Country Status (4)

Country Link
DE (1) DE747446C (enrdf_load_stackoverflow)
FR (1) FR866078A (enrdf_load_stackoverflow)
GB (1) GB539810A (enrdf_load_stackoverflow)
NL (2) NL222556A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1096100B (de) * 1952-06-25 1960-12-29 Ibm Deutschland Einrichtung zum zeilenweisen Abfuehlen von Aufzeichnungstraegern mittels eines Elektronenstrahls
NL198632A (enrdf_load_stackoverflow) * 1954-07-06

Also Published As

Publication number Publication date
NL97373B (enrdf_load_stackoverflow)
NL222556A (enrdf_load_stackoverflow)
DE747446C (de) 1945-01-11
FR866078A (fr) 1941-06-16

Similar Documents

Publication Publication Date Title
US2172354A (en) Multiplex signaling system
US2291476A (en) Communication system
US2097392A (en) Electronic distributor
US2110746A (en) Telemetering system
ES464991A1 (es) Perfeccionamientos en receptores de facsimil.
US2682571A (en) Television
US2521010A (en) Television system
US1934821A (en) Device for producing colored pictures
US2784251A (en) Apparatus for translating into legible form characters represented by signals
GB917805A (en) Improvements in and relating to colour television receivers
GB555565A (en) Improvements in and relating to colour television
GB539810A (en) Improvements in or relating to apparatus for reading records and in communication systems
US3832494A (en) Signal multiplexer and demultiplexer
GB1306461A (en) Pile fabrics
GB720554A (en) Improvements in and relating to colour television apparatus
US2181564A (en) Signaling system
US2082692A (en) High speed telepicture system
US2178758A (en) Television system
US2565266A (en) High-speed photoelectric transmitter
US1760159A (en) Electrooptical image production
US2559606A (en) Pulse widener and marker separator
US2498688A (en) Demodulator and channel separator system
US2260511A (en) Spacing control for telefacsimile systems and the like
US2941074A (en) Time division multiplex communication systems
US2516936A (en) Signal pulse responsive facsimile receiving system