Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 885
racted, the lever and point come into con-tact, closing the local circuit, influencing the register magnet, ami causing an indentation to be madecorresponding to the length of the wave. The relay lever, performing no work and making but theslightest movement, is set in motion by a current many… … number of stations may lie included within tinsame circuit or line, the attention of the operatorat any particular station being called by frequent repetitions upon the line of a specific signal given to that station. The use of a strip of paper forrecording the signals is falling gradually into…
Mechanical engineering -- Dictionaries
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