Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 198
A Carriage Shift and Unshift. Printer 3-A Line Feed Train. 3-A Printer Carriage Return Train. 3-A Printer Signal Bell Train. Printer 3-A Ribbon Mechanism Printer 3-A Operating Unit Sectional View. Printer 3-A Operating Unit (Sectional View) Old Style Printer 3-A Operating and Reset Contacts.… … Page 1 Section 5-B Multiplex System 263-C MULTIPLEX PRINTER 3-A 1. Section 1 described an elementary printer which consisted fundamentally of a typewriter with a separate, electrically operated selecting unit. Such a piece of apparatuswould obviously be impractical and in the 3-A Printer which is…
Telegraph
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