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Knight's Mechanical Encyclopedia (ed. Knight) 1 1 Browse Search
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Knight's Mechanical Encyclopedia (ed. Knight), P. (search)
pe-wheel could be acted on by a lever connected therewith, which took place when the pin inserted in the dial came in contact with a fixed hand thereon, when the circuit was again completed and the mechanism stopped: at this moment the figure was pushed into contact with a roll of paper, to which a movement at once rotary and upward was imparted by the clock-work. The message was thus imprinted upon the roll in a spiral line. House's printing-telegraph, patented in 1848, to date from April 18, 1846, has been extensively used in the United States. It consists of a composing-machine and a printing-machine at each station, the former of which is included in, and the latter distinct from, the circuit. The circuit commences in the battery of one station, passes along the line wire through the coil of an axial magnet to an insulated iron frame of the composing-machine of the next station, thence to a circuit-wheel revolving in this frame, enters a spring pressing on the edge of the