Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 94
the front comb down, and secure it with its mounting screws aslow as the screws permit. 3. Key Lever Springs. To adjust the key lever springs depress all selecting and con-tact bars, and make the tension of the key lever springs such that the key will not movewhen a ten gram weight is applied to… … CRAPLEL RAS Fig. 9 4. Selecting Bar Upper Stop. Adjust the selecting bar upper stop so that the rear,or number 1, bar just clears the selecting projections of the key levers. This stop islocated above the left hand end of the selecting bars. 5. Punch Hammer and Armature Shafts. See that the punch…
Telegraph
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