Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 166
carriage return barrel quickly winds up thecord and thus draws the carriage back to the left hand end of the line. 34. To hold the pawls off the rack until the carriage has fully returned, a locking pawlis attached to the movable spacer rack. When the carriage return bar is lifted by thecarriage… … Page 14 Section 5-A Multiplex System 263-C
Telegraph
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