Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 176
LOCK NUTSCONTACT SC*£W Fig. 27 Fig. 28 Page 3 Section 5-A Adjustments Multiplex System 263-C 9. Main Break Contact Adjustment. The main break contact screw (Fig. 28) shall be so adjusted that a pull of four ounces at the extreme end of the main break armaturewill just open the contact points. 4.0CK… … ■SHIFT UTV£JZ Fig. 29 10. Figures Magnet Plunger Travel. The travel shall be adjusted so that the lowerend of the shift lever passes over the end of the shift latch with a slight amount of over-travel to insure the latch catching the lever and holding the typewheel in the shiftedposition (Fig. 29).…
Telegraph
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten10unit-137-113.webp)
