ew. Pic- the cylinder rotates and the carriage travels. Upon a in length with that traced by the transmitting stylus. tures, handwriting and printed matter have often When the styius is in contact with an insulated por- of the receiving enough been electrically transmitted from one station tion of… … on the part of its inventors in endeavor- coils. The main, or recording, coils are ing to overcome the objections which we wound upon cores of soft Swedish iron, have cited. The construction of the ma- while the others have cores slightly harder, with a greater magnetic lag. The effect pro- chine…
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![An illustration from Telephones and telegraphs: 1902 : [and Municipal electric fire alarm and police patrol systems] (1906)](https://img.insideoutlibrary.com/img/200/ia-cu31924022817674-68-25.webp)
