Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 291
friction wheel engages the distributor flywheel and starts the distributor in rotation.When the distributor has been brought up to about the proper speed the switch in thebase is closed and the starter motor disengaged. If the motor has been brought to theproper speed the impulse motor will pick up…
Telegraph
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