Inside Out Library · Explore

American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)

Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 88

An illustration from American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation, 1909, leaf 88
e terminals are attached to the SELF-CLOSING KEYS. 6i key by means of the binding screws provided on the base of the key. Self-cLOSING keys.—Every one connected with telegraphy knows the vexationcaused and time lost by the faihire to close the keys. To avoid delays, etc., arisingfrom this failure,… … victor key. Whether this is due to inherent lack of merit in the devices or to a lackof desire on the part of the telegraph companies to encourage negligence on the j^artof employes is, perhaps, debatable. It is, however, unquestionable that some of theself-closing £ rrangements devised would…

Telegraph

Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.

More pictures from American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation

More like this