Means for establishing various communication conditions in a cry

Details Means for establishing various communication conditions in a cry Means for establishing various communication conditions in a cry

1945-12-20

1980-05-20

Birmiel, Howard A.

Telegraphy

Systems

Printing

35 4, H04L 900

Patent

active

042040884

ABSTRACT:
4. In a telegraph system, interconnected stations, converters at each station comprising transmitting and receiving apparatus, a signal line connected to said stations, said transmitting apparatus comprising a series of cam controlled transmitting contacts, means for controlling said contacts permutably, and means for altering the control imparted to said contacts by said means, said receiving apparatus comprising a selector mechanism responsive to enciphered signals generated by any transmitting apparatus, and means for retranslating said altered signal to effect printing in correspondence thereto, an electromagnetically controlled ciphering device at each station, and pulsing means cyclically operable by said receiving apparatus for controlling said ciphering device, whereby said altering means is rendered effective.

REFERENCES:
patent: 2458406 (1949-01-01), Nichols
patent: 3965296 (1976-06-01), Miller

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