The telegraph in American and Morse memorial (1886)
Reid, James D · New York, Printed for the author by J. Polhemus · leaf 919
t 500are in use, and of which the following is a somewhat concise description : Beneath the smallglass shade at therear of the key-board is an uprightpolarized relay, be-hind and abovewhich is situatedthe type wheel andprinting apparatus.The communica-tions are printed asreceived upon acontinuous… … -^►- -^►-^ Private Telegraph Lines. 841 within the hollow base of the instrument. At the back of the instrument,directly in the rear of the type wheel, is a cylindrical brass case con-taining what is called the sunflower. This is a flat annular disc ofplatinum, divided radially into equal segments…
Morse, Samuel Finley Breese, 1791-1872 · Telegraph
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
