Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity (1905)
American School (Chicago, Ill.) · Chicago : American School of Correspondence · leaf 58
ing operator depends entirely upon sound for the message,there are also in use the • Embosser and the Ink Writer. In the first a sharp point attached to the armature lever cutsthe dots or dashes in a strip of paper moved past it by clockwork ; in the second the dots and dashes are recorded on… … It is composed of a pivoted lever L fitted at one end with acircular plate P on which the fingers of the 0[»erator rest. Thekey is secured to the base by two thumb screws A and T, towhich the terminals of the circuit are attached. The screw A isin electrical connection with the main body of the…
Electrical engineering
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