American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 539
magnet when any one of them is selected, but 437^ AMERICAN TELEGRAPHY. by a suitable adjustment of the spring of the armature-lever of relay sp and the dis-tance through which the lever travels, the selection and printing of a given letterare assured before the armature levers of the distributing… … BARCLAY PRINTER, THEORY. The spacing between the printed letters on the typewriter is done automatic-ally, and practically concurrently with the printing of the letters, by the operation ofthe spacing magnet sm, which it may be seen is normally in the common return circuitof the printing magnets…
Telegraph
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer04inte-510-268.webp)
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-704-406.webp)
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer04inte-179-64.webp)