Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 187
to space properly, because the springis too weak. Determine the point where the spring is just strong enough to space thecarriage properly and then further strengthen the spring, counting the turns of the screw Page 14 Section 5-A Adjustments Multiplex System 263-C until the printer fails to space… … Fig. 46
Telegraph
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
