GB108330A - Improvements in or relating to Systems of Telegraphy. - Google Patents

Improvements in or relating to Systems of Telegraphy.

Info

Publication number
GB108330A
GB108330A GB651716A GB651716A GB108330A GB 108330 A GB108330 A GB 108330A GB 651716 A GB651716 A GB 651716A GB 651716 A GB651716 A GB 651716A GB 108330 A GB108330 A GB 108330A
Authority
GB
United Kingdom
Prior art keywords
tappings
telegraphy
relating
systems
resistance
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
GB651716A
Inventor
Charles Edward Hay
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB651716A priority Critical patent/GB108330A/en
Priority to FR499058D priority patent/FR499058A/en
Publication of GB108330A publication Critical patent/GB108330A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/24—Half-wave signalling systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

108,330. Hay, C. E. May 5, 1916. Drawings to Specification. Dynamos, regulating.-An alternator used in a telegraph system is provided with tappings which are selectively earthed for signalling purposes, the alternator being so designed that the selfinduction and resistance of the windings between the tappings change in the same ratio. This is effected by varying the resistance of the wire employed in successive turns or by inserting non- inductive resistances between the tappings in series with the turns.
GB651716A 1916-05-05 1916-05-05 Improvements in or relating to Systems of Telegraphy. Expired GB108330A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB651716A GB108330A (en) 1916-05-05 1916-05-05 Improvements in or relating to Systems of Telegraphy.
FR499058D FR499058A (en) 1916-05-05 1917-05-23 Improvements to telegraph systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB651716A GB108330A (en) 1916-05-05 1916-05-05 Improvements in or relating to Systems of Telegraphy.

Publications (1)

Publication Number Publication Date
GB108330A true GB108330A (en) 1917-08-07

Family

ID=32607346

Family Applications (1)

Application Number Title Priority Date Filing Date
GB651716A Expired GB108330A (en) 1916-05-05 1916-05-05 Improvements in or relating to Systems of Telegraphy.

Country Status (2)

Country Link
FR (1) FR499058A (en)
GB (1) GB108330A (en)

Also Published As

Publication number Publication date
FR499058A (en) 1920-01-30

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