GB453733A - Improvements in and relating to a method of and means for electrical telecommunication by means of ultra-short waves - Google Patents

Improvements in and relating to a method of and means for electrical telecommunication by means of ultra-short waves

Info

Publication number
GB453733A
GB453733A GB27685/35A GB2768535A GB453733A GB 453733 A GB453733 A GB 453733A GB 27685/35 A GB27685/35 A GB 27685/35A GB 2768535 A GB2768535 A GB 2768535A GB 453733 A GB453733 A GB 453733A
Authority
GB
United Kingdom
Prior art keywords
ultra
oct
sub
relating
radiated
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
GB27685/35A
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.)
MEAF Machinerieen en Apparaten Fabrieken NV
Original Assignee
MEAF Machinerieen en Apparaten Fabrieken NV
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 MEAF Machinerieen en Apparaten Fabrieken NV filed Critical MEAF Machinerieen en Apparaten Fabrieken NV
Publication of GB453733A publication Critical patent/GB453733A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/74—Preparation
    • C01B17/82—Preparation of sulfuric acid using a nitrogen oxide process
    • C01B17/86—Tower process
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

453,733. Wireless signalling. NAAMLOOZE VENNOOTSCHAP MACHINERIE-EN EN APPARATEN FABRIEKEN, MEAF, 30, Croeselaan, Utrecht, Holland. Oct. 7, 1935, No. 27685. Convention date, Oct. 27, 1934. [Class 40 (v)] A " resonator" valve of the kind described in Specifications 427,528, 428,258, 429,863, 433,026, 433,681, 449,920, and 452,490, is used to generate an ultra-short-wave carrier modulated by one or more intermediatefrequency sub-carriers on which various broadcast programmes or other signals, such as sound and television, or stock-exchange notices, are radiated simultaneously. The sub-carrier waves may be radiated at equal strength, or one may differ in strength from another, so that receivers of different sensitivity may be used as a means of selection. The transmitting and receiving aerials are mounted as high as possible, and are coupled to the highfrequency apparatus through feed-lines coaxial with the resonating chamber.
GB27685/35A 1934-10-27 1935-10-07 Improvements in and relating to a method of and means for electrical telecommunication by means of ultra-short waves Expired GB453733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE453733X 1934-10-27

Publications (1)

Publication Number Publication Date
GB453733A true GB453733A (en) 1936-09-17

Family

ID=6538816

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27685/35A Expired GB453733A (en) 1934-10-27 1935-10-07 Improvements in and relating to a method of and means for electrical telecommunication by means of ultra-short waves

Country Status (2)

Country Link
FR (2) FR453733A (en)
GB (1) GB453733A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515213A (en) * 1943-05-20 1950-07-18 Rca Corp Ultra high frequency communication system
US2515225A (en) * 1944-12-30 1950-07-18 Rca Corp Transceiver having switch controlled frequency compensator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2711440A (en) * 1944-10-09 1955-06-21 Rines Robert Harvey Microwave scanning system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515213A (en) * 1943-05-20 1950-07-18 Rca Corp Ultra high frequency communication system
US2515225A (en) * 1944-12-30 1950-07-18 Rca Corp Transceiver having switch controlled frequency compensator

Also Published As

Publication number Publication date
FR795971A (en) 1936-03-26
FR453733A (en) 1913-06-14

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