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 277
m pivoted nearer to the end next the pad which we will callA; the other end we will call B. A slight deflection, therefore,of end A is quite marked at end B; the movement of the latteris limited by a stop similar to the armature of a relay. Likethe relay also, at its end B the pivoted arm and the… … AUTO-ALPHABET INSTRUMENT. 249 20 THE ELECTRIC TELEGRAPH The slight moremeiitof the arm needed to operate the sounder iseffected hy runniiiu; the jterforated tape between the end A of thearm, and the curved pad; when the end A is against the paper tliesounder is open; it is closed whenever end A…
Electrical engineering
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