Telegraph engineering : a manual for practicing telegraph engineers and engineering students (1922)
Hausmann, Erich, 1886- · New York : D. Van Nostrand Company · leaf 125
e plungers. The plungers arerestored by springs to their normal position after each de-pression, which action advances the tape one space afterthe depression of the dot or space plungers, and two spacesafter depression of the dash plunger, the tape feeding beingaccompHshed by a small spur-wheel… … right-hand station. Only those mechanical features of thetransmitter are shown which serve directly in the capacityof pole-changer. The transmitting tape / is moved alongover a slotted platform, in the direction indicated by thearrow, by means of the spur-wheel w which engages in theguide holes.…
Telegraph
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