Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 110
Fig. 12 3. As the CAR RET key strikes the release rod bell crank after it has been depressed a short distance, its tension shall be measured just as it starts to move and before itstrikes the bell crank. In this connection it is well to remove the release rod spring anddetermine if the release rod… … -=0 Fig. 13 Page 2 Section 4-A Adjustments Multiplex System 263-C 4. In order to test the blank keys the CAR RET and LINE FEED keys must bedepressed simultaneously. 5. Loop Springs. It is important that the loop springs have a proper tension, forif they are too strong, the touch of the keys will be…
Telegraph
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