Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 163
entering pawl, thereby stretching the spring.This spring exerts a force to bring the index arm back to its vertical position when theindex arm is released. If the index arm rotates to the left, the right hand centering pawlacts in a similar manner. If the index arm rotates very far, the centering… … DC en t?co ai--l- (.ItOII)Q-0<< uJo£ uJuJ2-CD-Jq:uJ id o CC CDli- Page 11 Section 5-A Multiplex System 263-C |- CARR/ASE ffl
Telegraph
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